El logwatch de uno de mis servers me acaba de llegar y me tiro una listado eterno de 13742 entradas similares a estas:
Received disconnect:
11: Bye Bye : 13742 Time(s)
**Unmatched Entries**
pam_succeed_if(sshd:auth): error retrieving information about user usa : 4 time(s)
reverse mapping checking getaddrinfo for 181-170-111-65.serverpronto.com failed - POSSIBLE BREAK-IN ATTEMPT! : 276 time(s)
pam_succeed_if(sshd:auth): error retrieving information about user robyn : 4 time(s)
Como evitar esto?