Passwordless ssh login in RedHat6

Passwordless ssh login in RedHat6 1.1. First install openssh to both machine: [root@vpn ~]# yum install openssh* 1.2. Now create a pair of keys one is public (id_rsa.pub) and other is private key (id_rsa). [root@vpn ~]# ssh-keygen -t dsa [root@vpn ~]# ls -l /root/.ssh/ -rw-------. 1 root root 1675 Sep 27 23:49 id_rsa -rw-r--r--. 1 root root  402 Sep 27 23:49 id_rsa.pub 1.3. Now keep the public key to the destination server where you want to login passwordlessly. To do so use the below command. here my remote server's ip address is 192.168.1.73 [root@vpn...

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Your session has expired, but will be resumed after logging in again

Error: Sometimes we get an error at squirrel mail like below- "Your session has expired, but will be resumed after logging in again." Solution: 1. First check the mail log for details. ~# tail -f /var/log/mail.log 2. check the petition space of mail partition (default in /var). i.e: use the command- ~# df -h Most of the times it happens because of low disk space. If your /var partition is  full then delete/move some files/folders to create some space about 5 GB. After the log-in through squirrel mail. You should be able to do it now. ...

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How to install and configure torrent client in Redhat 6

How to install and configure torrent client in Redhat 6 First install dependencies: [root@gw1 ~]# yum -y install openssl* make gcc gcc-c++ autoconf automake openssl-devel curl-devel libevent-devel wget libevent-1.4.so.2 If still libevent is missing then menually download and install it like this way: [root@gw1 ~]# wget ftp://rpmfind.net/linux/centos/6.4/os/x86_64/Packages/libevent-1.4.13-4.el6.x86_64.rpm [root@gw1 ~]# rpm -ivh libevent-1.4.13-4.el6.x86_64.rpm Now we are going to download a torrent client named transmission: [root@gw1 ~]#...

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