Hi Arun, Please understand and do as Johnny advised, it will fix your problem. Thanks > On 03/27/2012 03:47 AM, arun kumar wrote: >> sorry for not mentioning before that iam new to linux >> >> i have full access to internet, this is an educational institution, >> every >> one have there seperate username and pasword for login... >> so i used the my username and password in the yum.conf file.. >> >> i tried from GUI also like >> >> system->Administration-> software update ,then i got the >> folowing warning and error >> >> Software Update Viewer is running as a privileged user >> Package management applications are security sensitive. >> Running graphical applications as a privileged user should be avoided >> for >> security reasons. >> >> problem connecting to software source >> >> i also tried >> system->Administration->Add/Remove software >> >> iam not understanding what else to try > > <snip> > > If you do not have the Environment variable set for http_proxy, then > curl will not work. This seems like your problem to me. > > To see if you have http_proxy set as an environment variable, use this > command: > > env | grep -i http_proxy > > You need to check the above variable for both your "root user" and your > "local user" (local user's variables would be used if you are running > yum with sudo or su root ... root user would be used if you did "su - > root" or logged in directly as root. > > If the result is in caps, like this: > > HTTP_PROXY=http://my_username:mypassword@10.101.16.4:8080 > > Then curl might have an issue, so also add it in lower case like this: > > http_proxy="http://my_username:mypassword@10.101.16.4:8080" > > So, If you do not have a lower case "http_proxy=", then you would set it > in your root's ".bash_profile" file and your local user's > ".bash_profile" file. This is the line you would add to both users > .bash_profile: > > export http_proxy="http://my_username:mypassword@10.101.16.4:8080" > > After making the change, log out and back in to have the variables take > effect and then check them again with the grep command above ... > > Once you have the correct lower case variable set for "http_proxy=" for > both your normal local user and for root, you should be able to use yum > and curl. > > <snip> > >>> If the proxy server requires a username and password, add these to the >>> URL. To include the username |yum-user| and the password |qwerty|, add >>> these settings: >>> >>> |# The Web proxy server, with the username and password for this >>> account >>> http_proxy="http://yum-user:qwerty@mycache.mydomain.com:3128" >>> export http_proxy| >>> >>> *Example 5. Profile Settings for a Secured Proxy Server* >>> >>> [Note] The |http_proxy| Environment Variable >>> >>> The |http_proxy| environment variable is also used by |curl| and other >>> utilities. Although |yum| itself may use |http_proxy| in either >>> upper-case or lower-case, |curl| requires the name of the variable to >>> be >>> in lower-case. >>> > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > Thanks / Regards Prabhpal S. Mavi Email: prabhpal at digital-infotech.net Sent Through .Net Domain From iPhone