Nslookup works but ping fails mac.

Nslookup works but ping fails mac e. 9. When I ping the server's IP address, I get a response. 103) 56(84) bytes of data. 243#53 Name: ldap. local: Unknown host I have make searches on Internet but cannot find a solution. I have configured the VPN nic to append a dns suffix. com and it is fine. The ping command sends packets of information to the IP address or the domain and checks for replies. docs. In particular, only lookups with the host command seem to work, i. com (192. 17 Ping fails: PS C:\Users\Administrator> ping nuget Ping request could not find host nuget. Information I have an internal host internalhost. 一批ECS nslookup 域名结果正确，但是 ping 域名 返回 unknown host 1. <any DC server> works correctly. It's like this for all command line programs and e. 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. Dec 8, 2009 · I still can't resolve from my Mac. com'. 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. 103): icmp_seq=1 ttl=64 time=4. local the DNS server returns the corresponding IP address, but it doesn't return the hostname when I run nslookup xx. 11. 1 or 203. After trying to ping, run "arp -na" to see if you got a MAC address for the IP you tried to ping. com, it always return ping: bad address 'google. 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. I have an Active Directory / DNS(10. 222. I had the same issue on a Fedora 34. Given that pinging the IP but not the domain works, I tried resetting the DNS cache via : sudo dscacheutil -flushcache ; sudo killall -HUP mDNSResponder. Eg. com:80 * Couldn't resolve host 'google. This works fine in the browser, and also when I use ping. 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). 6. 0/24. 7 it does not work as expected. 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. 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. 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. 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. I have to enable/disable airplane mode. com [172. 164] with 32 bytes of data: (Ping fails, because icmp is blocked, but that isn't a name resolution issue. 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. But when I tried to ping domain names, e. 4 and 8. local: Unknown host $ host abc. The issue is intermittent and seems to resolve itself after a while. at. DNS on router set to 4. 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. The issue could be a cable, switch, router or firewall problem. 168. Furthermore, I cannot ping the hostname either, but I can ping the clients by their IPs. Only reboot help and sometime dscacheutil -flushcache. dig and nslookup work, but can't ping host. corp. 140. If the ping by IP address succeeds but the ping by name fails, it's probably a name resolution problem. 239. Also, you can check your ARP cache - this will show you the MAC - IP mappings within your subnet. When I run nslookup client. 120. uk) and resolves to the same, unknown public IP address. Windows can resolve these addresses: C:\Users\iain>ping www. 217. In the network I am having troubles with, nslookup against dns server 1. 0. with ping) inevitably stopped working at some point a few hours after boot. command and check if that works. In this container, I can ping external IPs successfully. When I nslookup server01. co. nslookup <any FQDN>. I am VPN'd into a network "DCCorpNet" and wish to complete an nslookup against the enterprises domain "enterprise. dig, host etc will resolve the hostnames on macOS and other machines fine (and nslookup works fine on all machines). com Address: 192. 200. 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. Laptop is connected to our company VPN (Juniper Network Connect 7. com Pinging www. firefox hit google; synaptic updater). I'm even able to bring up web pages by entering the IP address into the address bar directly. Why? I flushed DNS cach and restarted DNS daemon on my mac: sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder. conf and networksetup reported the correct DNS servers, etc. nslookup targetHost 208. Apple support has not helped me at all. Adding a new one can solve the problem temporarily. From that laptop, while connected, nslookup polls the correct DNS server, returns the right IP. Also a traceroute does work, but only with ICMP packages. Feb 5, 2022 · Responding as expected. km ) and that canonical name doesn't resolve to an IP address, that's why those tools cannot get an IP address. com PING server001. ping <website name>, nslookup <website name>. . mynet. 2 (latest). Despite all that, DNS resolution in general (e. 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. 6, but after clearing the DNS caches it starts working. 151. 10. Dec 26, 2023 · Nslookup works but ping fails? Here's why and how to fix it. Bummer, ping doesn't find it. Actual behavior Ping hangs from within the container, even though nslookup succeeds from within the container. Nov 4, 2016 · dig doesn't work for all of them - your second nameserver (200. 1) on the network 10. The problem is not consistent - it happens (seemingly) randomly and is solved by a router reboot. 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. a. Feb 25, 2014 · I am using Mac OS X 10. com' But when I saw David T's post here, I decided to try it with curl. What I don't know is how to diagnose what macOS is doing incorrectly. If this fails, the local and remote systems don't have network connectivity between them. local Address: 192. Also using 8. 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. The answers here did not work for me - it wasn't a browser issue. uk (not internal. 4). Pinging via IP works. mycompany. xxxx ~ % nslookup google. 185. com * getaddrinfo(3) failed for google. #dig kppfs. 222 (openDNS), though it sounds like public resolution is working fine. 67. I know that ping will use the OS to resolve the name, whereas dig/host will go to the DNS server directly. domain. 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. 238) for every domain that does NOT exist. So here’s my setup. 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. nslookup wolfman (name server lookup: wolfman) sends the hostname (wolfman) to the DNS (domain name system) to obtain the corresponding IP address. 22: bytes=32 time=6ms TTL=127 Reply from 10. You could also try to nslookup the hostname in question on a public DNS i. May 29, 2018 · The same argument goes for ping -a. 8;; connection timed out; no servers could be reached. When pinging this IP, it actually works. I have two different FreeBSD servers (different hosting companies), both exhibit this same behavior: They pick a specific IP address (216. 0). When I ping just "server01", I get a response. xxxxx ~ % ping 8. com". conf. 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. search. nucme ping: cannot resolve 123. com' * Closing connection #0 curl: (6) Couldn't resolve host 'google. 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. 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. com works. 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). This problems occurs on a MacBook Pro 15-inch, Mid 2014 running macOS High Sierra. 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. local has address 192. I had a Firefox web browser open, no longer works. Feb 13, 2015 · Ping: $ ping server ping: unknown host server $ ping server. ) nslookup fails, ping works, no other issues with internet Reboot fails to cure. Jun 5, 2022 · DNS doesn't work, though I can ping it. 2. g. Firefox. com' to return an IP address. I can ping the address of this site, but I can't ping the URL-ping: cannot resolve www. But this issue may come up again after minutes or hours. administrator@iMac-1 resolver % ping 123. Please check the name and try again. 4. net. 128 $ ping abc. com, it will tell me can't resolve 'google. Ping host1 - fails with ping could not find host; Ping host1. xxx. This did not help. Now any DNS based lookup fails (i. 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. It could be that the nslookup queries work for you but when you try to use PING, it fails. I know A records exist for the hosts I'm checking against so I expect 'nslookup SomeHost. So to explain. com fails to return anything (nothing printed on screen) nslookup www. This works already, so we have verified that the DNS works and that wolfman indeed corresponds to Feb 27, 2010 · hawk:~ user$ ping publicwebserver. 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. ) I had a Brave web browser open overnight and it still works! Using it here. 8), it worked for about 24 hours after startup, then failed. google. 20 Name: nuget. I can dig and nslookup fqdn too, but cannot ping them: ping: cannot resolve domain. 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. ” at the end each time you query using PING or tools like that. It's only when I ping the server's fully-qualified domain name "server01. Nslookup works fine when resolving the name of the machine and pinging works w/out issue for both IP and name. 2 in your example) isn't resolving the record. ibm. Oct 7, 2009 · Hello! Strange network problem. So while this fails: Nov 3, 2023 · I can connect to the VPN, and I can join every IP on my remote network. In my case a Sequoia MacBook does not receive a DNS configuration despite having a DNS configured in resolv. 22 Pinging somehost2 [10. If nslookup works but ping fails, perhaps you can fix the problem simply by adding a dot after the domain. Explanation. 14. Problem statement. nslookup works: PS C:\Users\Administrator> nslookup nuget Server: ad-01. May 11, 2023 · I mean that the google Chrome will resolve names but Safari don't. xx. com. 8. com" that I get "unknown host". com;; connection timed out; no servers could be reached. Oct 23, 2017 · Yes, anything via IP works fine. 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. Using the CLI the 'ping' command will not resolve names while the 'nslookup' command will. 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. com I get the correct response. There are two DNS Search suffix's (domain1. conf within the pods. But you'll get the same information by pinging your gateway and then checking the arp tables. 8 as dns server does not work either. 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. 243 Address: 192. Have you tried adding the hosts to the host file to see if Traceroute works. 6, I get "server01. You can also try arping to to see if that works. apple. fernando@desktest:~$ nslookup ldap. The ping doesn't resolve hostname, but nslookup does. 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. 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. For instance, if you open the abc. 12. This is on OSX 10. axdev. Mar 13, 2023 · I understand that Ping and NSLookup do not use the same resolution methods. example. We intermittently face a DNS issue with macOS 12. Jul 6, 2015 · @HåkanLindqvist I'm afraid not, it's unstable, I try serveral times then it works. May 24, 2018 · Certainly seems to be a DNS issue. This is the sole purpose of the nslookup command. 8 If it's a local ping (you can't ping your GW), take a look at the arp tables. does not work, but a ping to 1. Pinging the IP works fine. km is a CNAME ( mailtest-4. com returns an IP. Oct 4, 2023 · This is an unusual workaround, but it worked for some users. ping and curl are trying to get an actual IP address but the answer to the resolution jenkins-deb-builder. I was querying the netbios name, domain name, and server FQDN via nslookup and all gave successful addresses. local ping: cannot resolve abc. However, when I use dig or nslookup, I cannot get resolve working. (I was connected via VPN and the VPN client had correctly updated resolv. 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. Sometimes, NSLookup works but Ping fails due to corrupted network drivers. If the host 192. Command-line- I do nslookup www. $ ping abc ping: cannot resolve abc: Unknown host $ host abc abc. net Feb 17, 2012 · I would try to nslookup other local hosts, to see if the LAN DNS is functioning. Nslookup is a tool that allows you to troubleshoot DNS issues. enterprise. But I could still ping my DNS server(the Google DNS). com website, here’s how it will look like: nslookup xyz. nucme: Unknown host. ping server. 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. Both ping and nslookup work from the Mac: Mac$ nslookup internalhost. local Server: 192. What I tried. com just fine. Has any of you seen this issue before? Oct 20, 2021 · ping www. If I do nslookup google. 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. Pinging the FQDN works fine. So, it’s recommended to reinstall network adapter drivers when the issue occurs. local abc. Here's what happens: Oct 30, 2012 · This should make ping wolfman work. local: Unknown host. : Unknown host The problem comes with the client machines, the client is set to use the dns server (in this case 192. Instead, the issue was fixed by editing /etc/nsswitch. For example, if you previously used ping windowsreport command, try using ping windowsreport. 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. Restarting dnscache service doesn't work. 113. 22] with 32 bytes of data: Reply from 10. 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 Jan 20, 2013 · However in Mac OS X Lion 10. 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. When using ping, it doesn’t even resolve the address as it “cannot be found”. dev. corp If I try to ping however, ping server fails with unreachable host. Apr 9, 2019 · Connectivity is clearly okay, nslookup shows that DNS is working, nslookup resolves my xxx. Step 1: Open the Start menu and click Device Manager on Feb 12, 2025 · Hi, I’ve encountered a problem. Then the ping works again. 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. 1 is successfull. local). google. 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. ping: cannot resolve publicwebserver. However, nslookup behaves very strangely: nslookup <any FQDN> <any DC server> works incorrectly, appending example. So something is getting lost. The machine in this case is called 'solo', although it can occur with other hostnames at different times. The mail app will not work too. service. 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. company. 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. 243) and if I get in the terminal and do a nslookup it finds the ldap server just fine. Way 4: Reinstall Network Adapter Drivers. Everything connected in that network (2 servers) do ping the DNS server Jul 4, 2021 · Try making a DNS query at 192. conf, ping can fail to resolve a host even though nslookup succeeds. We open the Command Prompt window after searching through Windows search and use these commands. So for instance: # curl -v google. I have a Windows network (the Macbook is my first of many Macs). com, domain2. 64 bytes from server001. I think it comes from my mac, because the "ping fqdn" did work, and then stop. That looks like the same resolution problem that Edge showed. Nov 28, 2011 · Dig and NSlookup works, but curl fails. Other devices are fine xxxx ~ % nslookup 8. However, when I try to ping the domain name rather than the IP address, it just sits there. local. That busted the bridged mode kinda. 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). 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: bytes=32 time=12ms TTL=127 But I cannot find an equivalent flag for ping in Linux. My question: What are Resolve-DnsName and ping doing differently than nslookup? Mar 27, 2025 · Then it will add a “. But all these operations can be done successfully in the VM (outside of the container). However, if you fire up a terminal window and ping google it resolves, and nslookup on google works too. 1 with google. conf by default and I'd guess your ping has hit the failing resolver. ” Your ping is contacting resolvers, but not the same ones (or not all those) that nslookup is. 11 doesn't run or doesn't exist at all, both will fail. The Linux resolver randomises between entries in resolv. bblkyupe ixrmq iae lniih xsffiaj inwmi fgetxu pnubqlz aedubb fsvzks kxjgf oxyanl adpbs bium xdcj