can't update scientific linux, and ping, nslookup not working as well
i tried to update my scientific linux and i am getting the following
yum update Loaded plugins: fastestmirror, refresh-packagekit, security Determining fastest mirrors * sl: ftp.scientificlinux.org * sl-security: ftp.scientificlinux.org http://ftp.scientificlinux.org/linux...ta/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'ftp.scientificlinux.org'" Trying other mirror. and ping, nslookup also not working. I can ping my network gateway. but can't ping google.com or any other ip address external to my proxy Please help me with this problem |
my ifconfig info is
# ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:46 errors:0 dropped:0 overruns:0 frame:0 TX packets:46 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3894 (3.8 KiB) TX bytes:3894 (3.8 KiB) p2p1 Link encap:Ethernet HWaddr 00:25:64:48:1C:F8 inet addr:172.30.24.6 Bcast:172.30.27.255 Mask:255.255.252.0 inet6 addr: fe80::225:64ff:fe48:1cf8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:33943 errors:0 dropped:0 overruns:0 frame:0 TX packets:20310 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:24455882 (23.3 MiB) TX bytes:3257169 (3.1 MiB) Interrupt:18 |
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