On the incq128ad machine(linux#1)
mkdir -p ~/.ssh
chmod 700 ~/.ssh
/usr/bin/ssh-keygen -t rsa
/usr/bin/ssh-keygen -t dsa
touch ~/.ssh/authorized_keys
On the ipbde machine(linux#2)
mkdir -p ~/.ssh
chmod 700 ~/.ssh
/usr/bin/ssh-keygen -t rsa
/usr/bin/ssh-keygen -t dsa
touch ~/.ssh/authorized_keys
On the incq128ad machine(linux#1)
ssh incq128ad cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
ssh incq128ad cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
ssh ipbde cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
ssh ipbde cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
scp ~/.ssh/authorized_keys ipbde:.ssh/authorized_keys
On the incq128ad machine(linux#1)
cd $HOME
chmod 755 .
chmod 700 .ssh
cd $HOME/.ssh
chmod 600 authorized_keys
On the ipbde machine(linux#2)
cd $HOME
chmod 755 .
chmod 700 .ssh
cd $HOME/.ssh
chmod 600 authorized_keys
On both the machines run the following
ssh incq128ad hostname
ssh ipbde hostname