Nslookup works but ping fails mac Jan 28, 2014 · Hello everybody!!! I’m working on my final project and it consists of doing a small network with Active Directory, DNS, DHCP, FW, DMZ, Exchange, etc, etc… Right now, I’m having a little problem with my DNS and my DMZ. 8 If it's a local ping (you can't ping your GW), take a look at the arp tables. In particular, only lookups with the host command seem to work, i. local has address 192. 8), it worked for about 24 hours after startup, then failed. But all these operations can be done successfully in the VM (outside of the container). The problem is not consistent - it happens (seemingly) randomly and is solved by a router reboot. 8. ping: cannot resolve publicwebserver. enterprise. How can ping and the browser possibly get the IP if the more basic tools fail to do the resolve? Dec 19, 2023 · In such a situation, we could use two command line tools: ping and nslookup. 一批ECS nslookup 域名结果正确，但是 ping 域名 返回 unknown host 1. 9. g. I can dig and nslookup fqdn too, but cannot ping them: ping: cannot resolve domain. local: Unknown host I have make searches on Internet but cannot find a solution. 222 (openDNS), though it sounds like public resolution is working fine. I have configured the VPN nic to append a dns suffix. Thoughts on how to resolve? Mar 26, 2013 · We have an intermittent problem on Windows 8 whereby Ping fails to find the host but NSLookup resolves it correctly. 22] with 32 bytes of data: Reply from 10. com, it will tell me can't resolve 'google. So something is getting lost. nslookup is always OK, and curl failed many times until last time it success – leo Commented Jul 6, 2015 at 9:53 Nov 24, 2017 · > 最近两周碰到了不同场景下四个DNS问题，所以记录一下 这几个Case描述如下： 1. So if your nslookup works but ping fails on your Windows 10 PC when querying the IP address of a website then it could be caused by many reasons. local ping: cannot resolve abc. Nslookup works fine when resolving the name of the machine and pinging works w/out issue for both IP and name. ” at the end each time you query using PING or tools like that. a. 0). dig and nslookup work, but can't ping host. 6, I get "server01. When I ping either host name, or host name with fully-qualified domain name (FQDN), I get: Jay-Imermans-MacBook-Pro:~ jimerman$ ping Wkstn8 ping: cannot resolve Wkstn8: Unknown host Jay-Imermans-MacBook-Pro:~ jimerman$ Aug 10, 2017 · I'm experimenting with a Win10 IoT board that runs a web interface on minwinpc. com' But when I saw David T's post here, I decided to try it with curl. The whole issue revolves around the fact that the vendor software checks to see the target is alive before allowing connection, and I’m assuming it uses ping method because it gives a warning it can’t reach the target host and won’t let you connect. search. Here's what happens: Oct 30, 2012 · This should make ping wolfman work. nslookup targetHost 208. local: Unknown host. I have an Active Directory / DNS(10. Jun 5, 2022 · DNS doesn't work, though I can ping it. Then the ping works again. Oct 4, 2023 · This is an unusual workaround, but it worked for some users. 22: bytes=32 time=12ms TTL=127 But I cannot find an equivalent flag for ping in Linux. Mar 13, 2023 · I understand that Ping and NSLookup do not use the same resolution methods. I had the same issue on a Fedora 34. local the DNS server returns the corresponding IP address, but it doesn't return the hostname when I run nslookup xx. Jul 6, 2015 · @HåkanLindqvist I'm afraid not, it's unstable, I try serveral times then it works. 140. I can ping the address of this site, but I can't ping the URL-ping: cannot resolve www. Feb 13, 2015 · Ping: $ ping server ping: unknown host server $ ping server. Nov 4, 2016 · dig doesn't work for all of them - your second nameserver (200. Now any DNS based lookup fails (i. does not work, but a ping to 1. 2. <any DC server> works correctly. The Linux resolver randomises between entries in resolv. I have to enable/disable airplane mode. Instead, the issue was fixed by editing /etc/nsswitch. So to explain. Step 1: Open the Start menu and click Device Manager on Feb 12, 2025 · Hi, I’ve encountered a problem. It's like this for all command line programs and e. Manually adding server with the ip address obtained by nslookup to /etc/hosts makes ping work too, but this "solution" circumvents the nameservers and is thus not ideal (and I would have to add about 20 other entries as well). Also, you can check your ARP cache - this will show you the MAC - IP mappings within your subnet. Also a traceroute does work, but only with ICMP packages. I know that ping will use the OS to resolve the name, whereas dig/host will go to the DNS server directly. Actual behavior Ping hangs from within the container, even though nslookup succeeds from within the container. xxx. Ping host1 - fails with ping could not find host; Ping host1. This can be caused by a variety of problems, including incorrect DNS settings, firewall restrictions, or a Dec 1, 2008 · When you ping the fully qualified name of the server this should then work. Furthermore, I cannot ping the hostname either, but I can ping the clients by their IPs. Apr 9, 2019 · Connectivity is clearly okay, nslookup shows that DNS is working, nslookup resolves my xxx. 6, but after clearing the DNS caches it starts working. 200. 2 in your example) isn't resolving the record. I have two different FreeBSD servers (different hosting companies), both exhibit this same behavior: They pick a specific IP address (216. For example, if you previously used ping windowsreport command, try using ping windowsreport. From that laptop, while connected, nslookup polls the correct DNS server, returns the right IP. 7 it does not work as expected. This works already, so we have verified that the DNS works and that wolfman indeed corresponds to Feb 27, 2010 · hawk:~ user$ ping publicwebserver. Problem statement. Bummer, ping doesn't find it. Aug 8, 2013 · 2 NICs teamed for the Management 3 NICs teamed for VM001 with NLB 3 NICs teamed for VM002 with NLB Neither the host nor it’s guest servers can resolve IPs with nslookup. I was querying the netbios name, domain name, and server FQDN via nslookup and all gave successful addresses. 222. There are two DNS Search suffix's (domain1. uk (not internal. 128 $ ping abc. command and check if that works. The machine in this case is called 'solo', although it can occur with other hostnames at different times. fernando@desktest:~$ nslookup ldap. Does traceroute and ping work with only the IP address, and traceroute fails on hostname? Also, use ping -a ip-address to verify that the mapping is what you expect. com [172. 12. com' * Closing connection #0 curl: (6) Couldn't resolve host 'google. : Unknown host The problem comes with the client machines, the client is set to use the dns server (in this case 192. at. I'm even able to bring up web pages by entering the IP address into the address bar directly. Pinging via IP works. The ping command sends packets of information to the IP address or the domain and checks for replies. I have a 14-inch Macbook Pro released in 2021, recently my DNS failed regularly, the problem is as follows: my current DNS to Google DNS(8. 239. com" that I get "unknown host". 243#53 Name: ldap. local). xxxxx ~ % ping 8. But now a nslookup: PS C:\Windows\System32> nslookup hass Aug 2, 2022 · If the ping by name fails, try a ping by IP address. So, it’s recommended to reinstall network adapter drivers when the issue occurs. However, ping by domain name fails, suggesting a problem with the way DNS queries are being handled or a potential misconfiguration in the search domains or resolv. 20 Name: nuget. You could also try to nslookup the hostname in question on a public DNS i. But I could still ping my DNS server(the Google DNS). Information I have an internal host internalhost. #dig kppfs. 64 bytes from server001. Way 4: Reinstall Network Adapter Drivers. Docker集群中两个容器中 nslookup 同一个域名，返回来的IP不一样 Apr 17, 2023 · PS C:\> ping /a 10. service. We open the Command Prompt window after searching through Windows search and use these commands. com. administrator@iMac-1 resolver % ping 123. However, nslookup behaves very strangely: nslookup <any FQDN> <any DC server> works incorrectly, appending example. Dec 8, 2009 · I still can't resolve from my Mac. 6. 22: bytes=32 time=6ms TTL=127 Reply from 10. docs. 185. 217. 103) 56(84) bytes of data. This is on OSX 10. domain. com returns an IP. with ping) inevitably stopped working at some point a few hours after boot. I have a Windows network (the Macbook is my first of many Macs). So here’s my setup. 1 with google. ibm. All clients are on W10 1607 (that are The problem is that I cannot ping a device by it's hostname on my Debian 8 server. Sep 6, 2016 · curl/ping try to resolve an IP-address with mDNSResponder or by other means and finally operate on/interact with the remote host. Restarting dnscache service doesn't work. This works fine in the browser, and also when I use ping. com". I think it comes from my mac, because the "ping fqdn" did work, and then stop. com, it always return ping: bad address 'google. nslookup <any FQDN>. But when I tried to ping domain names, e. com, domain2. ping server. When I execute “ping XXX” on Windows 11 (24H2), it returns “Ping request could not find host XXX” (XXX is my company’s internal network domain name), but when I execute “nslookup XXX”, it returns the correct… By all accounts, the domain and DNS is working correctly. 8;; connection timed out; no servers could be reached. Everything connected in that network (2 servers) do ping the DNS server Jul 4, 2021 · Try making a DNS query at 192. Given that pinging the IP but not the domain works, I tried resetting the DNS cache via : sudo dscacheutil -flushcache ; sudo killall -HUP mDNSResponder. Also using 8. 17 Ping fails: PS C:\Users\Administrator> ping nuget Ping request could not find host nuget. After trying to ping, run "arp -na" to see if you got a MAC address for the IP you tried to ping. local Address: 192. 1 or 203. The ping doesn't resolve hostname, but nslookup does. Pinging the FQDN works fine. However, if you fire up a terminal window and ping google it resolves, and nslookup on google works too. When I ping just "server01", I get a response. com' to return an IP address. When pinging this IP, it actually works. Feb 25, 2014 · I am using Mac OS X 10. conf within the pods. Apple support has not helped me at all. corp If I try to ping however, ping server fails with unreachable host. 128 Sep 15, 2014 · Ping, nslookup and tracert all work as expected but the browser and other applications including telnet are unable to get any internet access. net Feb 17, 2012 · I would try to nslookup other local hosts, to see if the LAN DNS is functioning. Adding a new one can solve the problem temporarily. uk) and resolves to the same, unknown public IP address. conf by default and I'd guess your ping has hit the failing resolver. Jul 8, 2019 · This is a weird one: Environment: Single Windows 2016 DC (Win 2012 functional level) DHCP DNS Multiple 2008 and 2012 R2 servers (Files, SQL, ERP) Mix of Windows 10 and Windows 7 clients Issue: I have just one of 40 computer that is unable to connect to any of the file servers or internal resources, however it has no issue with resolving external servers and website and getting email from O365 Nov 16, 2022 · All the resources were accessible through a VPN. apple. Pinging the IP works fine. The issue is intermittent and seems to resolve itself after a while. com and it is fine. dev. com PING server001. conf, ping can fail to resolve a host even though nslookup succeeds. Laptop is connected to our company VPN (Juniper Network Connect 7. com works. km ) and that canonical name doesn't resolve to an IP address, that's why those tools cannot get an IP address. If nslookup works but ping fails, perhaps you can fix the problem simply by adding a dot after the domain. ping <website name>, nslookup <website name>. I had a Firefox web browser open, no longer works. Oct 7, 2009 · Hello! Strange network problem. If nslookup works but ping fails, it means that your computer can resolve the domain name to an IP address, but it cannot connect to the server at that address. This problems occurs on a MacBook Pro 15-inch, Mid 2014 running macOS High Sierra. 164] with 32 bytes of data: (Ping fails, because icmp is blocked, but that isn't a name resolution issue. 1. ) I had a Brave web browser open overnight and it still works! Using it here. When I ping the server's IP address, I get a response. May 24, 2018 · Certainly seems to be a DNS issue. dig, host etc will resolve the hostnames on macOS and other machines fine (and nslookup works fine on all machines). The issue could be a cable, switch, router or firewall problem. Explanation. Despite all that, DNS resolution in general (e. local - also fails with ping could not find host; IPConfig /displayDNS - lists host1 as Name does not exist; NSLookup host1 - works fine and resolves router When I nslookup 10. 67. com;; connection timed out; no servers could be reached. com Pinging www. com * getaddrinfo(3) failed for google. DNS on router set to 4. com (192. 8 as dns server does not work either. 4. In this container, I can ping external IPs successfully. 120. But you'll get the same information by pinging your gateway and then checking the arp tables. 11 doesn't run or doesn't exist at all, both will fail. Firefox. If I do nslookup google. nucme ping: cannot resolve 123. 168. 11. However, when I try to ping the domain name rather than the IP address, it just sits there. com:80 * Couldn't resolve host 'google. My question: What are Resolve-DnsName and ping doing differently than nslookup? Mar 27, 2025 · Then it will add a “. We upgraded a few of our machines to macOS 13(Ventura) recently, post the upgrade DNS resolution is working with nslookup and dig but curl and ping commands are not working Aug 18, 2023 · The ping command does not work as well. Jul 27, 2010 · Here are some of the steps I took to troubleshoot this: 1) Tried multiple access points (SonicWALL and FiOS AP) 2) Internet/name resolution works on other computers at my house 3) PING does not resolve names through terminal 4) NSLOOKUP works terminal 5) DIG works through terminal 6) HOST works through termial 7) Checked Mac firewall - it's Jul 18, 2015 · Ok, so here's the setup. 1 – if you receive a response from this address you'll know it's not legitimate, because this address does not exist anywhere on the Internet. Sep 20, 2017 · When at home, sometimes the internet access is unstable, the browser cannot show any site, it's not related to my router. conf. net. Command-line- I do nslookup www. I know A records exist for the hosts I'm checking against so I expect 'nslookup SomeHost. Specifically, ping is not I can resolve a hostname using host and/or nslookup but forward lookups do not work with dig; reverse lookups do: musashixxx@box:~$ host someserver somese Jun 16, 2010 · Was working pretty good but then I upgraded to the current release (3. You can also try arping to to see if that works. If the host 192. If I fire up Network Utility, I get the same problem on the Lookup tab (probably since it uses nslookup or host on the back-end). com'. com Address: 192. nslookup wolfman (name server lookup: wolfman) sends the hostname (wolfman) to the DNS (domain name system) to obtain the corresponding IP address. That looks like the same resolution problem that Edge showed. local: Unknown host $ host abc. nslookup Jun 30, 2016 · Expected behavior Ping to an internal host (a host that’s resolved by company dns) should succeed from within a container. We intermittently face a DNS issue with macOS 12. 243 Address: 192. xxxx ~ % nslookup google. When using ping, it doesn’t even resolve the address as it “cannot be found”. Sometimes, NSLookup works but Ping fails due to corrupted network drivers. local. Dec 26, 2023 · Nslookup works but ping fails? Here's why and how to fix it. ping and curl are trying to get an actual IP address but the answer to the resolution jenkins-deb-builder. nslookup works: PS C:\Users\Administrator> nslookup nuget Server: ad-01. corp. Oct 23, 2017 · Yes, anything via IP works fine. This is the sole purpose of the nslookup command. conf to use VPN's DNS servers - ping/nslookup were able to resolve the name but nothing else including Chrome, Firefox, or wget was able to resolve the same name). So while this fails: Nov 3, 2023 · I can connect to the VPN, and I can join every IP on my remote network. It's only when I ping the server's fully-qualified domain name "server01. Feb 5, 2022 · Responding as expected. Eg. (I was connected via VPN and the VPN client had correctly updated resolv. Windows can resolve these addresses: C:\Users\iain>ping www. This did not help. xx. 103): icmp_seq=1 ttl=64 time=4. For instance, if you open the abc. It could be that the nslookup queries work for you but when you try to use PING, it fails. co. mynet. e. May 11, 2023 · I mean that the google Chrome will resolve names but Safari don't. 14. 61 ms I use ping as an example because it's simple, but most of the other tools I need to use show the same results as ping. 1) on the network 10. If this fails, the local and remote systems don't have network connectivity between them. The ping works but not when the Aug 28, 2014 · In my case, everything else was fine: mDNSResponder was running and working, host/nslookup worked, both /etc/resolv. Only reboot help and sometime dscacheutil -flushcache. I am VPN'd into a network "DCCorpNet" and wish to complete an nslookup against the enterprises domain "enterprise. axdev. 238) for every domain that does NOT exist. com website, here’s how it will look like: nslookup xyz. 22 Pinging somehost2 [10. example. nucme: Unknown host. . But this issue may come up again after minutes or hours. Jul 23, 2022 · I didn’t say that ping in your case isn’t using DNS at all: “If NSS isn’t configured to use the same resolvers as those configured in /etc/resolv. What I don't know is how to diagnose what macOS is doing incorrectly. local Server: 192. So for instance: # curl -v google. Both ping and nslookup work from the Mac: Mac$ nslookup internalhost. google. ” Your ping is contacting resolvers, but not the same ones (or not all those) that nslookup is. 243) and if I get in the terminal and do a nslookup it finds the ldap server just fine. Because clearly this is the problem I am facing, DNS is sound but ping does not work, not even "hosts" file resolution is working! – Jose Manuel Gomez Alvarez Commented Nov 22, 2024 at 17:01 The nslookup command works, indicating that the DNS service is reachable and can resolve domain names. Using the CLI the 'ping' command will not resolve names while the 'nslookup' command will. May 29, 2018 · The same argument goes for ping -a. If you have an local authoritative server that's incorrectly setup, you'll fail internally, but work externally which will hit a different DNS server ultimately. firefox hit google; synaptic updater). In my case a Sequoia MacBook does not receive a DNS configuration despite having a DNS configured in resolv. km is a CNAME ( mailtest-4. 10. Please check the name and try again. 0/24. 151. com I get the correct response. 0. Other devices are fine xxxx ~ % nslookup 8. 在公司网下，我的windows7笔记本的wifi总是报dns域名异常无法上网（通过IP地址可以上网） 1. That busted the bridged mode kinda. However, when I use dig or nslookup, I cannot get resolve working. Nov 28, 2011 · Dig and NSlookup works, but curl fails. 1 is successfull. 4 and 8. mycompany. The mail app will not work too. local abc. google. com just fine. When I brought the machine in for testing, I found that I could do an nslookup just fine, and I'm able to ping addresses returned by nslookup just fine. 2 (latest). When I run nslookup client. What I tried. Nslookup is a tool that allows you to troubleshoot DNS issues. 243 I'm having an issue which recurs every few days, whereby ping cannot resolve a hostname on my LAN (but nslookup is able to). com fails to return anything (nothing printed on screen) nslookup www. ) nslookup fails, ping works, no other issues with internet Reboot fails to cure. But then I did a ping on the hostname of that machine: PS C:\Windows\System32> ping hass Ping request could not find host hass. Oct 30, 2014 · ping "cannot resolve" even though nslookup works I am having issues browsing to an internal company site even though I was just using it minutes before. conf and networksetup reported the correct DNS servers, etc. company. In the network I am having troubles with, nslookup against dns server 1. When I nslookup server01. The answers here did not work for me - it wasn't a browser issue. Why? I flushed DNS cach and restarted DNS daemon on my mac: sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder. When I am trying to ping a particular domain it returns me "Unknown host" but when I run nslookup on that same host immediately it returns me the correct IP. com Jan 20, 2013 · However in Mac OS X Lion 10. 113. Has any of you seen this issue before? Oct 20, 2021 · ping www. 4). If the ping by IP address succeeds but the ping by name fails, it's probably a name resolution problem. $ ping abc ping: cannot resolve abc: Unknown host $ host abc abc. Have you tried adding the hosts to the host file to see if Traceroute works. sdpjmxdnuvozbigeannqywrmwovmaxaitqocddhjtrcwlomuwwmizvygnuuxgbqxovfycmwl
Nslookup works but ping fails mac Jan 28, 2014 · Hello everybody!!! I’m working on my final project and it consists of doing a small network with Active Directory, DNS, DHCP, FW, DMZ, Exchange, etc, etc… Right now, I’m having a little problem with my DNS and my DMZ. 8 If it's a local ping (you can't ping your GW), take a look at the arp tables. In particular, only lookups with the host command seem to work, i. local has address 192. 8), it worked for about 24 hours after startup, then failed. But all these operations can be done successfully in the VM (outside of the container). The problem is not consistent - it happens (seemingly) randomly and is solved by a router reboot. 8. ping: cannot resolve publicwebserver. enterprise. How can ping and the browser possibly get the IP if the more basic tools fail to do the resolve? Dec 19, 2023 · In such a situation, we could use two command line tools: ping and nslookup. 一批ECS nslookup 域名结果正确，但是 ping 域名 返回 unknown host 1. 9. g. I can dig and nslookup fqdn too, but cannot ping them: ping: cannot resolve domain. local: Unknown host I have make searches on Internet but cannot find a solution. 222 (openDNS), though it sounds like public resolution is working fine. I have configured the VPN nic to append a dns suffix. Thoughts on how to resolve? Mar 26, 2013 · We have an intermittent problem on Windows 8 whereby Ping fails to find the host but NSLookup resolves it correctly. 22] with 32 bytes of data: Reply from 10. com, it will tell me can't resolve 'google. So something is getting lost. nslookup is always OK, and curl failed many times until last time it success – leo Commented Jul 6, 2015 at 9:53 Nov 24, 2017 · > 最近两周碰到了不同场景下四个DNS问题，所以记录一下 这几个Case描述如下： 1. So if your nslookup works but ping fails on your Windows 10 PC when querying the IP address of a website then it could be caused by many reasons. local ping: cannot resolve abc. Nslookup works fine when resolving the name of the machine and pinging works w/out issue for both IP and name. ” at the end each time you query using PING or tools like that. a. 0). dig and nslookup work, but can't ping host. 6, I get "server01. When I ping either host name, or host name with fully-qualified domain name (FQDN), I get: Jay-Imermans-MacBook-Pro:~ jimerman$ ping Wkstn8 ping: cannot resolve Wkstn8: Unknown host Jay-Imermans-MacBook-Pro:~ jimerman$ Aug 10, 2017 · I'm experimenting with a Win10 IoT board that runs a web interface on minwinpc. com' But when I saw David T's post here, I decided to try it with curl. The whole issue revolves around the fact that the vendor software checks to see the target is alive before allowing connection, and I’m assuming it uses ping method because it gives a warning it can’t reach the target host and won’t let you connect. search. Here's what happens: Oct 30, 2012 · This should make ping wolfman work. nslookup targetHost 208. local: Unknown host. I have an Active Directory / DNS(10. Jun 5, 2022 · DNS doesn't work, though I can ping it. Then the ping works again. Oct 4, 2023 · This is an unusual workaround, but it worked for some users. 22: bytes=32 time=12ms TTL=127 But I cannot find an equivalent flag for ping in Linux. Mar 13, 2023 · I understand that Ping and NSLookup do not use the same resolution methods. I had the same issue on a Fedora 34. local the DNS server returns the corresponding IP address, but it doesn't return the hostname when I run nslookup xx. Jul 6, 2015 · @HåkanLindqvist I'm afraid not, it's unstable, I try serveral times then it works. 140. I can ping the address of this site, but I can't ping the URL-ping: cannot resolve www. Feb 13, 2015 · Ping: $ ping server ping: unknown host server $ ping server. Nov 4, 2016 · dig doesn't work for all of them - your second nameserver (200. Now any DNS based lookup fails (i. does not work, but a ping to 1. 2. <any DC server> works correctly. The Linux resolver randomises between entries in resolv. I have to enable/disable airplane mode. Instead, the issue was fixed by editing /etc/nsswitch. So to explain. Step 1: Open the Start menu and click Device Manager on Feb 12, 2025 · Hi, I’ve encountered a problem. It's like this for all command line programs and e. Manually adding server with the ip address obtained by nslookup to /etc/hosts makes ping work too, but this "solution" circumvents the nameservers and is thus not ideal (and I would have to add about 20 other entries as well). Also, you can check your ARP cache - this will show you the MAC - IP mappings within your subnet. Also a traceroute does work, but only with ICMP packages. I know that ping will use the OS to resolve the name, whereas dig/host will go to the DNS server directly. Actual behavior Ping hangs from within the container, even though nslookup succeeds from within the container. xxx. Ping host1 - fails with ping could not find host; Ping host1. This can be caused by a variety of problems, including incorrect DNS settings, firewall restrictions, or a Dec 1, 2008 · When you ping the fully qualified name of the server this should then work. Furthermore, I cannot ping the hostname either, but I can ping the clients by their IPs. Apr 9, 2019 · Connectivity is clearly okay, nslookup shows that DNS is working, nslookup resolves my xxx. 6, but after clearing the DNS caches it starts working. 200. 2 in your example) isn't resolving the record. I have two different FreeBSD servers (different hosting companies), both exhibit this same behavior: They pick a specific IP address (216. For example, if you previously used ping windowsreport command, try using ping windowsreport. From that laptop, while connected, nslookup polls the correct DNS server, returns the right IP. 7 it does not work as expected. This works already, so we have verified that the DNS works and that wolfman indeed corresponds to Feb 27, 2010 · hawk:~ user$ ping publicwebserver. Problem statement. Bummer, ping doesn't find it. Aug 8, 2013 · 2 NICs teamed for the Management 3 NICs teamed for VM001 with NLB 3 NICs teamed for VM002 with NLB Neither the host nor it’s guest servers can resolve IPs with nslookup. I was querying the netbios name, domain name, and server FQDN via nslookup and all gave successful addresses. 222. There are two DNS Search suffix's (domain1. uk (not internal. 128 $ ping abc. command and check if that works. The machine in this case is called 'solo', although it can occur with other hostnames at different times. fernando@desktest:~$ nslookup ldap. Does traceroute and ping work with only the IP address, and traceroute fails on hostname? Also, use ping -a ip-address to verify that the mapping is what you expect. com [172. 12. com' * Closing connection #0 curl: (6) Couldn't resolve host 'google. : Unknown host The problem comes with the client machines, the client is set to use the dns server (in this case 192. at. I'm even able to bring up web pages by entering the IP address into the address bar directly. Pinging via IP works. The ping command sends packets of information to the IP address or the domain and checks for replies. I have a 14-inch Macbook Pro released in 2021, recently my DNS failed regularly, the problem is as follows: my current DNS to Google DNS(8. 239. com" that I get "unknown host". 243#53 Name: ldap. local). xxxxx ~ % ping 8. But now a nslookup: PS C:\Windows\System32> nslookup hass Aug 2, 2022 · If the ping by name fails, try a ping by IP address. So, it’s recommended to reinstall network adapter drivers when the issue occurs. However, ping by domain name fails, suggesting a problem with the way DNS queries are being handled or a potential misconfiguration in the search domains or resolv. 20 Name: nuget. You could also try to nslookup the hostname in question on a public DNS i. But I could still ping my DNS server(the Google DNS). Information I have an internal host internalhost. #dig kppfs. 64 bytes from server001. Way 4: Reinstall Network Adapter Drivers. Docker集群中两个容器中 nslookup 同一个域名，返回来的IP不一样 Apr 17, 2023 · PS C:\> ping /a 10. service. We open the Command Prompt window after searching through Windows search and use these commands. com. administrator@iMac-1 resolver % ping 123. However, nslookup behaves very strangely: nslookup <any FQDN> <any DC server> works incorrectly, appending example. Dec 8, 2009 · I still can't resolve from my Mac. 6. 22: bytes=32 time=6ms TTL=127 Reply from 10. docs. 185. 217. 103) 56(84) bytes of data. This is on OSX 10. domain. com returns an IP. with ping) inevitably stopped working at some point a few hours after boot. I have a Windows network (the Macbook is my first of many Macs). So here’s my setup. 1 with google. ibm. All clients are on W10 1607 (that are The problem is that I cannot ping a device by it's hostname on my Debian 8 server. Sep 6, 2016 · curl/ping try to resolve an IP-address with mDNSResponder or by other means and finally operate on/interact with the remote host. Restarting dnscache service doesn't work. This works fine in the browser, and also when I use ping. com". I think it comes from my mac, because the "ping fqdn" did work, and then stop. com, it always return ping: bad address 'google. nslookup <any FQDN>. But when I tried to ping domain names, e. com, domain2. ping server. When I execute “ping XXX” on Windows 11 (24H2), it returns “Ping request could not find host XXX” (XXX is my company’s internal network domain name), but when I execute “nslookup XXX”, it returns the correct… By all accounts, the domain and DNS is working correctly. 8;; connection timed out; no servers could be reached. Everything connected in that network (2 servers) do ping the DNS server Jul 4, 2021 · Try making a DNS query at 192. Given that pinging the IP but not the domain works, I tried resetting the DNS cache via : sudo dscacheutil -flushcache ; sudo killall -HUP mDNSResponder. Also using 8. 17 Ping fails: PS C:\Users\Administrator> ping nuget Ping request could not find host nuget. After trying to ping, run "arp -na" to see if you got a MAC address for the IP you tried to ping. local Address: 192. 1 or 203. The ping doesn't resolve hostname, but nslookup does. Pinging the FQDN works fine. However, if you fire up a terminal window and ping google it resolves, and nslookup on google works too. When I ping just "server01", I get a response. com' to return an IP address. When pinging this IP, it actually works. Feb 25, 2014 · I am using Mac OS X 10. conf within the pods. Apple support has not helped me at all. corp If I try to ping however, ping server fails with unreachable host. 128 Sep 15, 2014 · Ping, nslookup and tracert all work as expected but the browser and other applications including telnet are unable to get any internet access. net Feb 17, 2012 · I would try to nslookup other local hosts, to see if the LAN DNS is functioning. Adding a new one can solve the problem temporarily. uk) and resolves to the same, unknown public IP address. conf by default and I'd guess your ping has hit the failing resolver. Jul 8, 2019 · This is a weird one: Environment: Single Windows 2016 DC (Win 2012 functional level) DHCP DNS Multiple 2008 and 2012 R2 servers (Files, SQL, ERP) Mix of Windows 10 and Windows 7 clients Issue: I have just one of 40 computer that is unable to connect to any of the file servers or internal resources, however it has no issue with resolving external servers and website and getting email from O365 Nov 16, 2022 · All the resources were accessible through a VPN. apple. Pinging the IP works fine. The issue is intermittent and seems to resolve itself after a while. com and it is fine. dev. com PING server001. conf, ping can fail to resolve a host even though nslookup succeeds. Laptop is connected to our company VPN (Juniper Network Connect 7. com works. km ) and that canonical name doesn't resolve to an IP address, that's why those tools cannot get an IP address. If nslookup works but ping fails, perhaps you can fix the problem simply by adding a dot after the domain. ping <website name>, nslookup <website name>. I had a Firefox web browser open, no longer works. Oct 7, 2009 · Hello! Strange network problem. If nslookup works but ping fails, it means that your computer can resolve the domain name to an IP address, but it cannot connect to the server at that address. This problems occurs on a MacBook Pro 15-inch, Mid 2014 running macOS High Sierra. 164] with 32 bytes of data: (Ping fails, because icmp is blocked, but that isn't a name resolution issue. 1. ) I had a Brave web browser open overnight and it still works! Using it here. When I ping the server's IP address, I get a response. May 24, 2018 · Certainly seems to be a DNS issue. dig, host etc will resolve the hostnames on macOS and other machines fine (and nslookup works fine on all machines). The issue could be a cable, switch, router or firewall problem. Explanation. Despite all that, DNS resolution in general (e. local - also fails with ping could not find host; IPConfig /displayDNS - lists host1 as Name does not exist; NSLookup host1 - works fine and resolves router When I nslookup 10. 67. com;; connection timed out; no servers could be reached. com Pinging www. com * getaddrinfo(3) failed for google. DNS on router set to 4. com (192. 8 as dns server does not work either. 4. In this container, I can ping external IPs successfully. 120. But you'll get the same information by pinging your gateway and then checking the arp tables. 11 doesn't run or doesn't exist at all, both will fail. Firefox. If I do nslookup google. nucme ping: cannot resolve 123. 168. 11. However, when I try to ping the domain name rather than the IP address, it just sits there. com:80 * Couldn't resolve host 'google. My question: What are Resolve-DnsName and ping doing differently than nslookup? Mar 27, 2025 · Then it will add a “. We upgraded a few of our machines to macOS 13(Ventura) recently, post the upgrade DNS resolution is working with nslookup and dig but curl and ping commands are not working Aug 18, 2023 · The ping command does not work as well. Jul 27, 2010 · Here are some of the steps I took to troubleshoot this: 1) Tried multiple access points (SonicWALL and FiOS AP) 2) Internet/name resolution works on other computers at my house 3) PING does not resolve names through terminal 4) NSLOOKUP works terminal 5) DIG works through terminal 6) HOST works through termial 7) Checked Mac firewall - it's Jul 18, 2015 · Ok, so here's the setup. 1 – if you receive a response from this address you'll know it's not legitimate, because this address does not exist anywhere on the Internet. Sep 20, 2017 · When at home, sometimes the internet access is unstable, the browser cannot show any site, it's not related to my router. conf. net. Command-line- I do nslookup www. I know A records exist for the hosts I'm checking against so I expect 'nslookup SomeHost. Specifically, ping is not I can resolve a hostname using host and/or nslookup but forward lookups do not work with dig; reverse lookups do: musashixxx@box:~$ host someserver somese Jun 16, 2010 · Was working pretty good but then I upgraded to the current release (3. You can also try arping to to see if that works. If the host 192. If I fire up Network Utility, I get the same problem on the Lookup tab (probably since it uses nslookup or host on the back-end). com'. com Address: 192. nslookup wolfman (name server lookup: wolfman) sends the hostname (wolfman) to the DNS (domain name system) to obtain the corresponding IP address. That looks like the same resolution problem that Edge showed. local: Unknown host $ host abc. nslookup Jun 30, 2016 · Expected behavior Ping to an internal host (a host that’s resolved by company dns) should succeed from within a container. We intermittently face a DNS issue with macOS 12. 243 Address: 192. xxxx ~ % nslookup google. When using ping, it doesn’t even resolve the address as it “cannot be found”. Sometimes, NSLookup works but Ping fails due to corrupted network drivers. local. Dec 26, 2023 · Nslookup works but ping fails? Here's why and how to fix it. ping and curl are trying to get an actual IP address but the answer to the resolution jenkins-deb-builder. nslookup works: PS C:\Users\Administrator> nslookup nuget Server: ad-01. corp. Oct 23, 2017 · Yes, anything via IP works fine. This is the sole purpose of the nslookup command. conf to use VPN's DNS servers - ping/nslookup were able to resolve the name but nothing else including Chrome, Firefox, or wget was able to resolve the same name). So while this fails: Nov 3, 2023 · I can connect to the VPN, and I can join every IP on my remote network. It's only when I ping the server's fully-qualified domain name "server01. Feb 5, 2022 · Responding as expected. Eg. (I was connected via VPN and the VPN client had correctly updated resolv. Windows can resolve these addresses: C:\Users\iain>ping www. This did not help. xx. 103): icmp_seq=1 ttl=64 time=4. For instance, if you open the abc. It could be that the nslookup queries work for you but when you try to use PING, it fails. co. mynet. e. May 11, 2023 · I mean that the google Chrome will resolve names but Safari don't. 14. 61 ms I use ping as an example because it's simple, but most of the other tools I need to use show the same results as ping. 1) on the network 10. If this fails, the local and remote systems don't have network connectivity between them. The ping works but not when the Aug 28, 2014 · In my case, everything else was fine: mDNSResponder was running and working, host/nslookup worked, both /etc/resolv. Only reboot help and sometime dscacheutil -flushcache. I am VPN'd into a network "DCCorpNet" and wish to complete an nslookup against the enterprises domain "enterprise. axdev. 238) for every domain that does NOT exist. com website, here’s how it will look like: nslookup xyz. 22 Pinging somehost2 [10. example. nucme: Unknown host. . But this issue may come up again after minutes or hours. Jul 23, 2022 · I didn’t say that ping in your case isn’t using DNS at all: “If NSS isn’t configured to use the same resolvers as those configured in /etc/resolv. What I don't know is how to diagnose what macOS is doing incorrectly. local Server: 192. So for instance: # curl -v google. Both ping and nslookup work from the Mac: Mac$ nslookup internalhost. google. ” Your ping is contacting resolvers, but not the same ones (or not all those) that nslookup is. 243) and if I get in the terminal and do a nslookup it finds the ldap server just fine. Because clearly this is the problem I am facing, DNS is sound but ping does not work, not even "hosts" file resolution is working! – Jose Manuel Gomez Alvarez Commented Nov 22, 2024 at 17:01 The nslookup command works, indicating that the DNS service is reachable and can resolve domain names. Using the CLI the 'ping' command will not resolve names while the 'nslookup' command will. May 29, 2018 · The same argument goes for ping -a. If you have an local authoritative server that's incorrectly setup, you'll fail internally, but work externally which will hit a different DNS server ultimately. firefox hit google; synaptic updater). In my case a Sequoia MacBook does not receive a DNS configuration despite having a DNS configured in resolv. km is a CNAME ( mailtest-4. 10. Please check the name and try again. 0/24. 151. com I get the correct response. 0. Other devices are fine xxxx ~ % nslookup 8. 在公司网下，我的windows7笔记本的wifi总是报dns域名异常无法上网（通过IP地址可以上网） 1. That busted the bridged mode kinda. However, when I use dig or nslookup, I cannot get resolve working. Nov 28, 2011 · Dig and NSlookup works, but curl fails. 1 is successfull. 4 and 8. mycompany. The mail app will not work too. local abc. google. com just fine. When I brought the machine in for testing, I found that I could do an nslookup just fine, and I'm able to ping addresses returned by nslookup just fine. 2 (latest). When I run nslookup client. What I tried. Nslookup is a tool that allows you to troubleshoot DNS issues. 243 I'm having an issue which recurs every few days, whereby ping cannot resolve a hostname on my LAN (but nslookup is able to). com fails to return anything (nothing printed on screen) nslookup www. ) nslookup fails, ping works, no other issues with internet Reboot fails to cure. But then I did a ping on the hostname of that machine: PS C:\Windows\System32> ping hass Ping request could not find host hass. Oct 30, 2014 · ping "cannot resolve" even though nslookup works I am having issues browsing to an internal company site even though I was just using it minutes before. conf and networksetup reported the correct DNS servers, etc. company. In the network I am having troubles with, nslookup against dns server 1. When I nslookup server01. The answers here did not work for me - it wasn't a browser issue. Why? I flushed DNS cach and restarted DNS daemon on my mac: sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder. When I am trying to ping a particular domain it returns me "Unknown host" but when I run nslookup on that same host immediately it returns me the correct IP. com Jan 20, 2013 · However in Mac OS X Lion 10. 113. Has any of you seen this issue before? Oct 20, 2021 · ping www. 4). If the ping by IP address succeeds but the ping by name fails, it's probably a name resolution problem. $ ping abc ping: cannot resolve abc: Unknown host $ host abc abc. Have you tried adding the hosts to the host file to see if Traceroute works. sdpjm xdnuvozb ige annq ywrmwov maxait qocd dhjt rcwl omuw wmizv ygnu uxg bqxovf ycmwl