convert unix time to local time

date -R -d @1245049200

-R requests that date output in RFC 2822 format
-d requests that date output the date based on a string that follows

Set up SNMP v3 on Cisco IOS

conf t
snmp-server group group_name v3 priv
snmp-server group group_name v3 priv read secure_ro write secure_rw access 5
snmp-server view secure_ro internet included
snmp-server view secure_rw mgmt included
snmp-server user snmp_user iksecure v3 auth md5 auth_password priv des56 priv_password

access-list 5 permit host x.x.x.x
access-list 5 deny any log


show snmp group
show snmp user