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Angreb på SSH



Jeg ville gerne kunne bruge ssh-adgang til min server.
Jeg har tidligere haft angreb på ssh og har derfor ikke brugt det et stykke tid.
Nu har jeg så slået den til og det er seneste version.
Men nu får jeg angreb igen.


Nov 28 10:40:19 www sshd[28721]: Failed password for root from 211.189.39.241 port 41411 ssh2
Nov 28 10:40:21 www sshd[28723]: Invalid user optic from 211.189.39.241
Nov 28 10:40:21 www sshd[28723]: error: Could not get shadow information for NOUSER
Nov 28 10:40:21 www sshd[28723]: Failed password for invalid user optic from 211.189.39.241 port 41491 ssh2
Nov 28 10:40:24 www sshd[28725]: Invalid user service from 211.189.39.241
Nov 28 10:40:24 www sshd[28725]: error: Could not get shadow information for NOUSER
Nov 28 10:40:24 www sshd[28725]: Failed password for invalid user service from 211.189.39.241 port 41577 ssh2
Nov 28 10:40:27 www sshd[28727]: Invalid user admin from 211.189.39.241
Nov 28 10:40:27 www sshd[28727]: error: Could not get shadow information for NOUSER


Der har været ca 3000 forsøg siden igår,
Hvad gør jeg, tror på at det er sikkert?

Bjørn

 
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