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Re: Internet pullula di delinquenti?



Ciao,
 io credo che esistanto script che, a partire da questi file di log, bloccano 
l'indirizzo IP rilevato inserendo altre regole nelle iptables. Tanto.. prima 
di arrivare alla password tentando un brute-force ci vogliono (a seconda 
della password che usi) milioni di combinazioni, percui un demone è una 
soluzione assai tempestiva per queste cose.
Ce ne sono diversi, fail2ban, sshdfilter. Io personalmente me ne sono scritto 
uno per me.
Ciao,
Tommy

> Oct  1 01:51:45 coplast sshd[13855]: Illegal user a from 82.89.167.208
> Oct  1 01:51:49 coplast sshd[13857]: Illegal user b from 82.89.167.208
> Oct  1 01:51:53 coplast sshd[13859]: Illegal user c from 82.89.167.208
> Oct  1 01:51:57 coplast sshd[13861]: Illegal user d from 82.89.167.208
> Oct  1 01:52:01 coplast sshd[13863]: Illegal user e from 82.89.167.208
> Oct  1 01:52:06 coplast sshd[13865]: Illegal user f from 82.89.167.208
> Oct  1 01:52:10 coplast sshd[13867]: Illegal user g from 82.89.167.208
> Oct  1 01:52:14 coplast sshd[13869]: Illegal user h from 82.89.167.208
> Oct  1 01:52:18 coplast sshd[13871]: Illegal user i from 82.89.167.208
> Oct  1 01:52:22 coplast sshd[13873]: Illegal user j from 82.89.167.208
> Oct  1 01:52:27 coplast sshd[13875]: Illegal user k from 82.89.167.208
> Oct  1 01:52:31 coplast sshd[13877]: Illegal user l from 82.89.167.208
> Oct  1 01:52:35 coplast sshd[13879]: Illegal user m from 82.89.167.208
> Oct  1 01:52:39 coplast sshd[13881]: Illegal user n from 82.89.167.208
> Oct  1 01:52:44 coplast sshd[13883]: Illegal user o from 82.89.167.208
> Oct  1 01:52:48 coplast sshd[13885]: Illegal user p from 82.89.167.208

-- 
Tommaso

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