update to openssh 6.2

1st Method

1.  Download the latest openssh package from http://www.openssh.org/ under /usr/local.
2.  Extract the package: # tar -xvf openssh-<version>.tar.gz
3.  Take a note of current SSH installation on the server by executing the following commands:
      # which ssh
      # rpm -qa | grep ssh
      # rpm -qf  `which ssh`
      Also take a backup of /etc/ssh folder.
4.  Go to /usr/local/openssh-<version no>/
5.  Compile the openssh package as follows:
     # ./configure --with-kerberos5 --with-pam --with-md5-passwords
6. make
7. make install
8. Check if the system is using the newly compiled openssh package by running the 'which' and 'ssh -v' command.
9. Manually link the older version of  'ssh' command to new version:
   # mv /usr/sbin/ssh /usr/sbin/ssh_old
   # ln -s /usr/local/bin/ssh /usr/sbin/ssh 


2nd Method (by overriding existing SSH config)
1.  Download the latest openssh package from http://www.openssh.org/ under /usr/local.
2.  Extract the package: # tar -xvf openssh-<version>.tar.gz
3.  Take a note of current SSH installation on the server by executing the following commands:
      # which ssh
      # rpm -qa | grep ssh
      # rpm -qf  `which ssh`
      Also take a backup of /etc/ssh folder.
4.  Go to /usr/local/openssh-<version no>/
5.  Compile the openssh package as follows:

./configure --prefix=/usr --sysconfdir=/etc/ssh --with-ssl-dir=/opt/openssl-0.9.8e --with-pam  --with-kerberos5 --with-md5-passwords --with-tcp-wrappers

6. make
7. make install
8. Check if the system is using the newly compiled openssh package by running the 'which' and 'ssh -v' command.