Can't connect to internet

phuongvo · Post by **phuongvo** » 2011/12/26 17:12:22

I have a Centos linux server. Before it worked normally, today there's a problem. There're only IP address inside my university that can connect to my server. Others can't. Could you please give me some reasons and how to fix it?

I also try to change IP of server to another one. But It still didn't work :-( It can only connect to IP, websites inside my lab, my school. It can't connect to google or wiki.....

when I try to use traceroute to google.com, It gives the following result:

traceroute to google.com (74.125.53.104), 30 hops max, 60 byte packets
1 220.70.1.254 (220.70.1.254) 1.486 ms 1.742 ms 1.753 ms
2 10.200.0.17 (10.200.0.17) 1.386 ms 1.408 ms 1.405 ms
3 10.0.20.1 (10.0.20.1) 5.255 ms 5.589 ms 6.183 ms
4 203.253.30.17 (203.253.30.17) 1.318 ms 1.328 ms 1.606 ms
5 pw-in-f104.1e100.net (74.125.53.104) 0.734 ms 0.744 ms 0.739 ms

Please help me! Thanks very much

phuongvo · Post by **phuongvo** » 2011/12/27 10:36:29

hic hic....please help me ^^ I can't find any reason or keyword to solve it.....plz plz....

pschaff · Post by **pschaff** » 2011/12/27 16:40:55

Welcome to the CentOS fora. Please see the recommended reading for new users linked in my signature. The parts about how to ask questions, and how and when to bump a thread are particularly relevant.

It is not clear from your post if you are having problems with incoming or outgoing connections. Please clarify and [url=http://www.centos.org/modules/newbb/viewtopic.php?topic_id=28723&forum=54]provide more information about your system[/url] by running "./getinfo.sh" and showing us the output file.