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Thread: Very Strange problem!!
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08-31-2007, 02:22 PM #1Junior Guru Wannabe
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Very Strange problem!!
When i type
root@ldld [~]# ping www.google.com
ping: unknown host www.google.com
what can be the reason any help plz?
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08-31-2007, 02:25 PM #2Web Hosting Master
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The issue is with the resolvers of your server. Try adding any other nameserver IP entries in the /etc/resolv.conf file or try adding your main server IP address as your resolver.
David | www.cliffsupport.com
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08-31-2007, 02:32 PM #3Junior Guru Wannabe
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thi is how my resolv looks like
domain sms.kaik100.info
nameserver 38.100.42.26
nameserver 38.100.42.27
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08-31-2007, 02:40 PM #4Web Hosting Master
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You may ask your provider for another set of resolvers.
David | www.cliffsupport.com
Affordable Server Management Solutions sales AT cliffsupport DOT com
CliffWebManager | Access WHM from iPhone and Android
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08-31-2007, 02:47 PM #5Junior Guru Wannabe
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08-31-2007, 02:51 PM #6Web Hosting Evangelist
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david has a point. The sites will work even if the resolvers do not. Before requesting enything to your isp, try and stop the firewall and then try pinging again, if it does not work then talk to your ISP or DC
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08-31-2007, 02:55 PM #7Disabled
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Are those the correct IPs in resolv.conf? Run ip addr to make sure they are allocated to your server.
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08-31-2007, 03:09 PM #8Junior Guru Wannabe
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08-31-2007, 03:24 PM #9Web Hosting Master
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Try adding this entry to the /etc/resolv.conf file and have a check. Make these as the first entries in the file.
nameserver 4.2.2.1
nameserver 4.2.2.2David | www.cliffsupport.com
Affordable Server Management Solutions sales AT cliffsupport DOT com
CliffWebManager | Access WHM from iPhone and Android
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08-31-2007, 03:36 PM #10Junior Guru Wannabe
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hehe
yeh this works
ehhehe
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08-31-2007, 03:41 PM #11
DNS Resolvers being down can cause many issues from mail failing to what you're seeing here. The best response is not to use local ip addresses (as shown here) for a resolver, but to use something like OpenDNS resolvers. I've been using their own resolvers (on my servers and in my home network) for about a year now, and they haven't let me down yet.
Tom Whiting, WHMCS Guru extraordinaire
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08-31-2007, 03:51 PM #12WHT Addict
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I'd say it's an issue with ping/your firewall if you can't ping any hosts. Also as an alternative to OpenDNS, there is the 4.2.2.1 to 4.2.2.6 range of name servers. They're pretty quick all over.