How to block weak ciphers and MACs in 6.2p2

[Visweswara Rao Polisetti]

Hi,

     It seems in openssh 6.7, all the weak ciphers and MAC algorithms got
deprecated. What is the best way to do the same for 6.2p2 version? Adding
following entries in sshd_config file causing sshd process crash whenever
the client tries to connect. So, could you please suggest any other methods
to achieve the same?

# Secure Ciphers and MACs
Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128
MACs hmac-sha1,umac-64 at openssh.com,hmac-ripemd160


Thanks,

Vissu.