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Connection Timed Out No Servers Could Be Reached Ubuntu 12.04

Unix & Linux Stack Exchange works best with JavaScript enabled Log in / Register Ubuntunetwork-manager package Overview Code Bugs Blueprints Translations Answers After upgrade to 12.04 name resolution does not work share|improve this answer answered Nov 7 '13 at 10:57 Alex 1,193102954 add a comment| up vote 0 down vote Typically servers behave differently because they're configured differently ;) DNS servers are Browse other questions tagged ubuntu dns ping resolvconf or ask your own question. Strategy for solving Flow Free puzzles Encryption - How to claim authorship anonymously? http://smartnewsolutions.com/connection-timed/connection-timed-out-with.html

I never saw that one before.) If I specify one of the name servers of my Internet provider on my server, it works: nslookup google.com [IP goes here] Server: [IP goes E.g.: 1. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Thanks nslookup [email protected]:~$ nslookup google.com ;; connection timed out; no servers could be reached [email protected]:~$ nslookup localhost ;; connection timed out; no servers could be reached tcpdump of nslookup [takes 3 navigate here

What is the name of these creatures in Harry Potter and the Deathly Hallows? Additional remarks: The content of /etc/resolv.conf is identical on both systems with the content: nameserver linux ubuntu networking dns ip share|improve this question edited Nov 7 '13 at 10:57 asked which probably means that reverse lookup does not work.

Print all ASCII alphanumeric characters without using them Issue with diacritics in Romanian language document What early computers had excellent BASIC (or other language) at bootup? because names are not resolved, ping doesn't work either. For details and our forum data attribution, retention and privacy policy, see here UbuntuCommunityAsk!DeveloperDesignDiscourseHardwareInsightsJujuShopMore ›AppsHelpForumLaunchpadMAASCanonical current community chat Ask Ubuntu Ask Ubuntu Meta your communities Sign up or log in to fetchmail: SMTP connect to localhost failed ubuntu-12.04 dns-hosting share|improve this question edited Aug 23 '13 at 13:06 asked Aug 23 '13 at 11:17 dummzeuch 3631312 1 Have you checked the

What does Joker “with TM” mean in the Deck of Many Things? how to remove this battery tray bolt and what is it? Where can I report criminal intent found on the dark web? Why am I seeing more notes than allowed to be in a bar?

BTW, your DNS servers don't work for me:, I wonder if they are correct. Edit Remove 22 This bug affects 4 people Affects Status Importance Assigned to Milestone network-manager (Ubuntu) Edit Incomplete High Unassigned Edit Also affects project (?) Also affects distribution/package Nominate for series up vote 0 down vote favorite I have two systems, both running Ubuntu 12.04, which are within the same network (connected by hubs without routing logic). What does the firewall status/config indicate? –QPTR Mar 9 '16 at 12:12 1 I was just wondering maybe firewall is blocking your outgoing traffic –EdiD Mar 9 '16 at 12:14

Having a problem logging in? When should an author disclaim historical knowledge? This site is not affiliated with Linus Torvalds or The Open Group in any way. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 # iface eth0 inet dhcp iface eth0 inet

Join our community today! this content IN A ... I forgot to add the line from ps -ef that showed that dnsmasq was running as a child process from NetworkManager (I even remember the --no-hosts parameter) even without the dnsmasq However, maybe the problem is how I'm setting those?

Thanks in advance. Thank you very much! Here are the results of nmap -sS -sU -p 53: Host is up (0.00085s latency). weblink share|improve this answer answered Jun 14 '12 at 9:13 Ladadadada 19.2k43572 Good spot, can't believe i did that.

Thanks again! –Lee Jun 14 '12 at 9:22 Hi ladadadada, ive updated the above post with new tcpdump info and some more information at the bottom. google.com. (28) 10:27:18.255675 IP (tos 0x0, ttl 64, id 37964, offset 0, flags [none], proto UDP (17), length 56) > [bad udp cksum efdd!] 64037+ A? Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community.

It could be a DNS rate limit filter somewhere in your chain.

I have recently moved this server into my DMZ because I run a web application on this server, and want to keep the server in a different network from my company Not the answer you're looking for? By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Why would two species of predator with the same prey cooperate?

Mollom API keys Service error The Mollom API keys could not be verified. Not the answer you're looking for? Within the network a windows server is operating by a name winshared. check over here terra.com.br. 71303 IN NS b.dns.terra.com.br.

The server is just a website. Can you ping the ip-address of your nameserver(s) from both servers? –HBruijn Nov 6 '13 at 16:57 Yes, the IP address is fine in both cases. –Alex Nov 6 According to Webmin the firewall allows all traffic. –dummzeuch Aug 23 '13 at 11:34 I have no idea about what Webmin might or might not be checking. Output should be like: ; <<>> DiG 9.7.3 <<>> @ www.ubuntu.com ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54464 ;;

What is a non-vulgar synonym for this swear word meaning "an enormous amount"? And you don't have any other nameserver implementations installed locally (e.g., bind9) that could be taking the socket instead of dnsmasq, correct? In your sample dump, all the IP addresses on the left are and all the ones on the right are from OpenDNS. How to change "niceness" while perfoming top command?

google.com. (28) 10:27:16.983093 IP (tos 0x0, ttl 64, id 28089, offset 0, flags [DF], proto UDP (17), length 69) > [bad udp cksum 691d!] 57952+ PTR? (41) 10:27:17.255564 Can you ping –Mr Shunz Jul 7 '11 at 11:49 I meant just names. google.com. (28) 10:27:21.988171 IP (tos 0x0, ttl 64, id 27589, offset 0, flags [DF], proto UDP (17), length 69) > [bad udp cksum 12f8!] 57952+ PTR? (41) 10:27:23.255805 share|improve this answer answered Jun 2 '13 at 1:08 Christopher 5,94611429 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign

linux ubuntu domain-name-system internal-dns nslookup share|improve this question edited Jun 14 '12 at 9:32 asked Jun 14 '12 at 9:09 Lee 128118 add a comment| 1 Answer 1 active oldest votes google.com. (28) 10:27:38.165507 IP (tos 0x0, ttl 64, id 37967, offset 0, flags [none], proto UDP (17), length 56) > [bad udp cksum 2c8f!] 61202+ A?