Review Chapter 3, Linux Files and Processes, in Linux System Administration.
See the Utilities section on the ssh client for information on using ssh to access another system.
cat:
/etc/ssh/sshd_config
See “Configure the /etc/ssh/sshd_config file” at http://www.faqs.org/docs/securing/chap15sec122.html for information on setting up the sshd daemon.
Challenge/response (the default)
Kerberos
/etc/hosts.equiv
~/.rhosts
/etc/ssh/ssh_config
System-wide configuration for clients
~/ssh/ssh_config
Private client configuration
Client and server configurations must match to work.
3DES – Triple Data Encryption Standard
Block cypher
168-bit key
3 passesAES – Advanced Encryption Standard
Similar to 3DES
128-, 192- or 256-bit keyCAST – Carlisle Adams Stafford Tavares
128-bit key
ARCfour
Stream cypher
Variable-length keys up to 2048 bits long