On 16/10/10 7:57 PM, Ritika Garg wrote: > I want to update the system because I haven't updated CentOS5.3 from the > time when I installed it. But I am also afraid of directly using "yum > update" command. I used "yum list updates" but theres a error displayed > which I have already posted. As Manish said in his response, the error indicates a networking failure. Either the system's Internet connection is down, suffering from high latency or the DNS resolution is timing out. You should check all the suggestions that Manish made. Regards, Ben -- Ben McGinnes http://www.adversary.org/ Twitter: benmcginnes Systems Administrator, Writer, ICT Consultant Encrypted email preferred - primary OpenPGP/GPG key: 0xA04AE313 http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x371AC5BFA04AE313 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 258 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20101016/80810383/attachment-0005.sig>