Nslookup ok but ping fails.

Nslookup ok but ping fails com +tcp; I can ping the outside world using the IP; other devices on same wifi work fine However, the browser (ERR_NAME_NOT_RESOLVED), services such as curl (Could not resolve host: www. com [142. 185. 定位. km is a CNAME ( mailtest-4. Restarting dnscache service doesn't work. service. 67. Oct 27, 2024 · Hope someone can point me in the right direction. com fails, i have never seen such behaviour before, how is it even possible ? Also i am still able to ping google. nameserver 192. please help! ping vm1host. com ping: cannot resolve dc1-main. Jul 4, 2021 · Try making a DNS query at 192. xx. I have confirmed that the DNS servers are accessible from other machines. ssh -vvv xxx I have two different FreeBSD servers (different hosting companies), both exhibit this same behavior: They pick a specific IP address (216. com just fine. local does actually look to DNS for resolution but looks to secondary DNS server rather than Primary DNS server! May 29, 2018 · I am trying to complete an nslookup for a number of hosts on an affiliated domain, but all nslookups fail. Feb 25, 2014 · I am using Mac OS X 10. The DNS resolves when using nslookup but hosts cannot be pinged. 04 client. 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. 200. The firewall on the wireguard server does not show the queries being blocked. I can ping basically any valid name I want and get a response, but nslookup fails. 2. 103) 56(84) bytes of data. Mar 26, 2013 · The first ping request for host1 does not look to DNS for resolution but NbtNs, this fails and writes that failure to DNS cache. 168. local: Unknown host. com [172. 140. company. It could be that the nslookup queries work for you but when you try to use PING, it fails. com fails to return anything (nothing printed on screen) nslookup www. 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 Feb 13, 2015 · Ping: $ ping server ping: unknown host server $ ping server. conf is: # This file is managed by man:systemd-resolved(8). 4. 27 Server: 192. 100. but if I try to ping the exact same name I get “Ping request could not find the host” this seems to be affecting clients connected wirelessly only and it isn’t just ping that is affected. Telnet and HTTP, however, reside in the application layer, and so they require those ports to function. command and check if that works. Specifically, ping is not Sep 29, 2021 · nslookup is a command-line tool that helps to find DNS records of a website. 简介. 查看ping的解析顺序，配置中是先查找 /etc/hosts 然后是dns. 这个时候ping 某个自己的dns server中才有的域名是没法解析到的，即使你配置了自己的dns server，如果这个时候你通过 nslookup 自己的域名, 自己的dns-server-ip 确实是能够解析到的。 Nov 24, 2017 · nslookup 域名结果正确，但是 ping 域名 返回 unknown host. domain. You could also try to nslookup the hostname in question on a public DNS i. 243 Mar 13, 2023 · I understand that Ping and NSLookup do not use the same resolution methods. But this issue may come up again after minutes or hours. com website, here’s how it will look like: nslookup xyz. ” Your ping is contacting resolvers, but not the same ones (or not all those) that nslookup is. Have checked DC health, dcdiag all seems to pass OK, DCs are replicating OK, confirmed with repadmin. Jul 6, 2015 · @HåkanLindqvist I'm afraid not, it's unstable, I try serveral times then it works. g. I can ping external IP addresses (e. Jun 9, 2014 · I am having a confusing problem on one of my hyper-v host servers. Confirm this by doing what @SLaks has said and pinging the FQDN of the host :) See full list on thegeekpage. . tracert vm1host. com, but nslookup returns the correct ip address for google. 217. km ) and that canonical name doesn't resolve to an IP address, that's why those tools cannot get an IP address. Mar 6, 2020 · From my x86_64 Slackware/Absolute box, I can lookup hosts: $ nslookup pi2w 192. com Pinging google. logipconfig /flushdnsipconfig /registerdnsroute /f nslookup, on the other hand, talks to DNS servers directly and doesn’t use the Windows resolver. com" When running Wireshark on the client before/during a failed request, no packets are sent by the client machine (either for DNS resolution or for an initial HTTP/ping/tracert request) Restarting the DNS Client service does not resolve the problem ping and curl are trying to get an actual IP address but the answer to the resolution jenkins-deb-builder. 243#53 Name: ldap. com, I get ping request could not find host google. Nslookup works fine when resolving the name of the machine and pinging works w/out issue for both IP and name. conf. 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. Actual Behaviour: No pages can be reached when using a browser. 27 Address: 192. 110: bytes=32 time=29ms TTL=115 Reply from 142. My question: What are Resolve-DnsName and ping doing differently than nslookup? 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. conf within the pods. Oct 25, 2012 · I am having an odd ball issue her and it is ruining my day quickly. xxx. 1). This article dives deep into the reasons behind the issue where "Nslookup works but Ping fails in Windows 11 and 10" and offers comprehensive steps to troubleshoot and resolve it. C:\Documents and Settings\Helen> So as you can see the computer get's the correct IP address for any domain name using nslookup but trying to ping or browse to any domain name instantly fails. It's like this for all command line programs and e. 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. 113. 243 Address: 192. 8 google. 赶紧Google一下: nslookup ok but ping fail, 这个关键词居然Google自动提示了，看来碰到这个问题同学的好多好多. Oct 7, 2015 · In testing, I have discovered that nslookup ALWAYS works but ping doesn't. Jan 4, 2025 · A common instance of this phenomenon occurs in Microsoft Windows environments, where "nslookup" returns results while "ping" commands fail. If nslookup works but ping fails, perhaps you can fix the problem simply by adding a dot after the domain. As a matter of fact they are accessible from VM’s Jul 16, 2019 · We are working with Bind server on Ubuntu 16. 04. From a workstation, can ping the 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. Ping request could not find host digg. 4? Do you have multiple IPs/Default gateways that may be conflicting ( output from: ipconfig /all) Are you using both IPv6 and IPv4 on your network? Can you verify the following services are running: DNS Client Network Location Awareness Remote Procedure Call (RPC)? (open task manager Dec 17, 2021 · nslookup ok but ping fail. Given that pinging the IP but not the domain works, I tried resetting the DNS cache via : sudo dscacheutil -flushcache ; sudo killall -HUP mDNSResponder. ping: cannot resolve publicwebserver. ) Jun 16, 2010 · nslookup works, but ping fails by hostname (works by ip). 27#53 Name: pi2w Address: 192. com:80 * Couldn't resolve host 'google. 222. So for instance: # curl -v google. H:\\>ping google. Apr 15, 2020 · nslookup ok but ping fail 简介 遇到ping域名失败但是nslookup解析正常的问题，排查好久才定位问题，真是年度最坑爹问题 定位 nslookup正常说明dns服务器配置是没问题的 查看ping的解析顺序，配置中是先查找 /etc/hosts 然后是dns cat /etc/nsswitch. What could be causing this? More testing: Firefox, wget and ping have the same problem. DC still has internet connectivity but all the joined servers lost internet connectivity. So while this fails: Aug 10, 2017 · How can ping and the browser possibly get the IP if the more basic tools fail to do the resolve? Setup is just a DragonBoard with Win10 IoT Core, connected to an iPhone hotspot. What am I doing wrong? Here's my config: Wireguard Server If I try to ping however, ping server fails with unreachable host. 243) and if I get in the terminal and do a nslookup it finds the ldap server just fine. Firefox. 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). 22: bytes=32 time=6ms TTL=127 Reply from 10. com) or ping an domain do not work. 0. That means it cannot resolve NetBIOS names. 10 nameserver 1. Feb 17, 2012 · I would try to nslookup other local hosts, to see if the LAN DNS is functioning. com returns "could not find host company. dev. PS C:\\Users Sep 15, 2014 · This sounds a lot like a mismatched port forwarding configuration. Feb 27, 2010 · hawk:~ user$ ping publicwebserver. I am using push "dhcp-option DNS 10. ping server. Feb 12, 2025 · Hi, I’ve encountered a problem. com returns an IP. 1. Jan 30, 2017 · dig and nslookup uses their own way resolving names and are ok with this. This works both for IPV6 and IPV4. 8. com (192. local Address: 192. 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… The problem is that I cannot ping a device by it's hostname on my Debian 8 server. conf hosts: files dns myhostname 查看 /etc/hosts 发现没有配置，按理说应该是 Aug 7, 2019 · Boot back into Windows, and nslookup works but everything else fails to resolve DNS. it's fast and reliable). 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. local Please check the name and try again. conf, ping can fail to resolve a host even though nslookup succeeds. 6. local Server: 192. Finally, if ping doesn't May 24, 2018 · We had an issue similar to this on 2 systems and it turned our to be something wrong with our Forticlient Software combined with a conflict between fortclient and Malwarebytes (during the free trial of the premium webscanning console) I uninstalled Malwarebytes, and Forticlient, reinstalled Forticlient and the problem was resolved on one system, the other system was a nightmare. Feb 19, 2025 · If your NSLookup works but Ping fails on Windows 11/10, then this guide offers definitive solutions to fix that problem. cat /etc/nsswitch. Oct 30, 2012 · What I think's happening is that ping isn't looking up the FQDN of the host, unlike nslookup which uses the search domain parameter of a DHCP offer (or whatever you specify for a static IP configuration). com works. 103): icmp_seq=1 ttl=64 time=4. Pinging any ip whether it be on the internet or local works perfectly fine, but any DNS resolution does not work including localhost. I have to enable/disable airplane mode. Expected Behaviour: After adding the pihole ip as the DNS on my Windows machine then hosts should still resolve and be reachable via a browser. 然后被自动追加了 tbsite. I found that if I instead ping a hostname with Ping fails but nslookup works. 14. 110] with 32 bytes of data: Reply from 142. nslookup is always OK, and curl failed many times until last time it success – leo Commented Jul 6, 2015 at 9:53 Jul 5, 2020 · Stack Exchange Network. com dig @8. The problem comes with the client machines, the client is set to use the dns server (in this case 192. Do not edit. If I re-install Windows or restore from a recent Windows backup, everything works again, until the next time it happens. Sep 26, 2010 · C:\Documents and Settings\Helen>ping digg. 100) but it does not resolve from every server I try (it does for some). Sep 30, 2024 · We have noticed that sometimes, Windows fails to resolve the domain name when one tries to ping it or do nslookup. it with IP 100. 1 The local IP is my local PiHole, which I mainly use as a local DNS Server. nslookup Sep 30, 2019 · However, neither ping or ssh work ('login' is a bash script that uses my key): christopher@HAL4:~$ ping web4 ping: web4: Name or service not known christopher@HAL4:~$ login web4 ssh: Could not resolve hostname web4: Name or service not known My /etc/resolv. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. foobar. However, you can still see whether it successfully resolved the host name to an IP address. 1. This did not help. mynet. 164] with 32 bytes of data: (Ping fails, because icmp is blocked, but that isn't a name resolution issue. 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. it took 9 Oct 20, 2021 · ping www. For instance, if you open the abc. com even after an ipconfig /flushdns. local. net aliyun. 251. 64 bytes from server001. There are older Google results that suggest disabling ipv6 - but there does not appear to be ipv4 in Windows 10 ipconfig /flushdns cleared the problem but then it came back and I don't want to be jumping into the command prompt every 5 minutes Jan 27, 2022 · Title says it all. Pinging the IP address Using ping company. com Pinging www. No special hosts or resolve files have been adjusted. e. Oct 4, 2023 · This is an unusual workaround, but it worked for some users. Since ping/nslookup/tracert all rely on ICMP, which is layer 3, they do not rely on a destination/source port to function. search. May 11, 2023 · But this fails % ping dc1-main. Windows can resolve these addresses: C:\Users\iain>ping www. nslookup targetHost 208. Google到的帖子大概有如下原因： 域名最后没有加 . Actually, ping fails to resolve if a part of a name begins or ends with underscore. If they nslookup the same hostname then it returns the correct details from the local LAN DNS. com alidc. com * getaddrinfo(3) failed for google. 120. 26. com but nslookup google. The ping doesn't resolve hostname, but nslookup does. It sends a name server query to the DNS and obtains the corresponding IP address Can you ping google. nslookup正常说明dns服务器配置是没问题的. Has any of you seen this issue before? 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. This can be caused by a variety of problems, including incorrect DNS settings, firewall restrictions, or a problem with the server itself. Also note that ping is blocked in many firewall configurations. Sometimes, when trying to run the nslookup command, they encounter this; however Apr 9, 2019 · Connectivity is clearly okay, nslookup shows that DNS is working, nslookup resolves my xxx. Jan 9, 2019 · 还有一种情况，开了easyconnect这样的vpn软件，同时又配置了自己的dns server. IE cannot display the webpage. 222 (openDNS), though it sounds like public resolution is working fine. com' But when I saw David T's post here, I decided to try it with curl. local: Unable to resolve target system name vm1host. 238) for every domain that does NOT exist. it is mapped drives and web nslookup works but ping fails in Windows 11 and windows 10netsh winsock reset catalognetsh int ip reset reset. apple. 22 Pinging somehost2 [10. We are unable to curl because DNS resolution but ping and nslookup are working from Ubuntu16. What I tried. Client that tries connecting is running macOS Sierra. 239. I can ping the DNS servers successfully, but when I try nslookup on them I get “No response from server”. ) I am running an OpenVPN server but when Windows 10 clients connect they cant ping hostnames on the internal LAN (but can ping via IP). 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). For example, I'm on a server Apr 18, 2020 · Pihole is installed on a Raspberry PI A+ that is connected to the network via a usb (gadget mode). local the DNS server returns the corresponding IP address, but it doesn't return the hostname when I run nslookup xx. conf is not being examined by ping for name servers. 27 But when I do $ ping pi2w ping: pi2w: Name or service not known So it appears that the Pi is serving names correctly, but resolv. I can ping the DNS servers (by IP address). Ping conti Apr 22, 2015 · When I try to ping google. (Windows 2012) DNS will not function correctly, thus no Internet or Windows updates, etc. Please check the name and try again. 110: bytes=32 time=29ms TTL=115 The nslookup command works, indicating that the DNS service is reachable and can resolve domain names. Second ping request for host1. com. net，自然 ping Feb 3, 2022 · Following Screen shows that i can ping google. 22] with 32 bytes of data: Reply from 10. nslookup <vm1-ip-address>: Works Ok ping <vm1-ip-address>: Works Ok tracert <vm1-ip-address>: Works Ok (also displays vm1host Nov 28, 2011 · Dig and NSlookup works, but curl fails. Understanding Nslookup and Apr 17, 2023 · PS C:\> ping /a 10. When I run nslookup client. Furthermore, I cannot ping the hostname either, but I can ping the clients by their IPs. com: Unknown host (like nslookup) or other methods. dig @8. com Mar 28, 2022 · host, dig and nslookup can resolve domain names to IPs e. See below: H:\\>ipconfig /flushdns Windows IP Configuration Successfully flushed the DNS Resolver Cache. local") in a URL but when I use host or nslookup on the same computer on the command line, the resolutions works fine (i. com Dec 26, 2023 · 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. All my other devices have the DNS Settings given by the main router via DHCP. 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 pinging this IP, it actually works. We have an extremely strange issue where all of our domain-joined machines are showing connected to a Private network rather than Domain network, and users are unable to logon other than with cached credentials. 32. local: Ping request could not find host vm1host. Then the ping works again. 遇到ping域名失败但是nslookup解析正常的问题，排查好久才定位问题，真是年度最坑爹问题. All external hostnames work fine for both ping, ssh, dig or nslookup. Ping uses system library and fails. a. example-preprod. Wireshark shows the DNS query going out but no replies. ping tells me that it can't resolve some hostname ("ping: unknown host domain. com? Can you ping google DNS: ping 8. The usual explanation is that the connection is due to NetBIOS however in this case Resolve-DnsName -DnsOnly should preclude that explanation. com' * Closing connection #0 curl: (6) Couldn't resolve host 'google. fernando@desktest:~$ nslookup ldap. Client - ping: root@app-01:~# ping -c1 nig Nov 4, 2016 · I've configured the DNS settings for a host (admin. conf hosts: files dns myhostname I can nslookup and dig an internal hostname, and I get a rapid response, but I cannot ping or ssh to the server. 1" which is my local LAN DNS. ping Jul 13, 2023 · nslookup works fine; dig works fine; ping only works with ip address, not with domains; wget and curl also fail to resolve /etc/resolv. 1 or 203. I am able to do an nslookup command for any internal name or server and the results return successfully. google. 22: bytes=32 time=12ms TTL=127 But I cannot find an equivalent flag for ping in Linux. For example, if you previously used ping windowsreport command, try using ping windowsreport. com PING server001. ljbpeo gzskc svc qcbnow yonrdb ukqv anzx kdb pjakmsq lrgpo elgs wzhisprx nwate xsyp bivbhf