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I am relatively new to Linux, am running LinuxMint (Katya). I have been able to ssh into my box from outside (including Putty) previously, and can ssh out from my box. For some reason I no longer can ssh in. I've read a lot of the forums and tried a lot like wiping the known_hosts and flushing iptables. Output from iptables -L is:
niccourtman@Sarah-Jane ~ $ tail -f /var/log/auth.log
Oct 8 13:51:11 Sarah-Jane sudo: niccourtman : TTY=pts/0 ; PWD=/home/niccourtman ; USER=root ; COMMAND=/bin/netstat -tnlp
Oct 8 14:12:25 Sarah-Jane sshd: pam_sm_authenticate: Called
Oct 8 14:12:25 Sarah-Jane sshd: pam_sm_authenticate: username = [niccourtman]
Oct 8 14:12:25 Sarah-Jane sshd: Accepted password for niccourtman from 127.0.0.1 port 58037 ssh2
Oct 8 14:12:25 Sarah-Jane sshd: pam_unix(sshd:session): session opened for user niccourtman by (uid=0)
Oct 8 14:13:07 Sarah-Jane sshd: Received disconnect from 127.0.0.1: 11: disconnected by user
Oct 8 14:13:07 Sarah-Jane sshd: pam_unix(sshd:session): session closed for user niccourtman
Oct 8 14:17:01 Sarah-Jane CRON: pam_unix(cron:session): session opened for user root by (uid=0)
Oct 8 14:17:01 Sarah-Jane CRON: pam_unix(cron:session): session closed for user root
Oct 8 14:40:27 Sarah-Jane sudo: niccourtman : TTY=pts/0 ; PWD=/home/niccourtman ; USER=root ; COMMAND=/usr/bin/editor /etc/ssh/sshd_config