Refused PORT 10,0,0,1,8,151 (address mismatch)

[MaRiOs]

Oct 12 20:47:27 linux7 proftpd[23404]: linux7.grserver.gr (62.38.174.68[62.38.174.68]) - Refused PORT 10,0,0,1,8,149 (address mismatch)
Oct 12 20:47:48 linux7 proftpd[23404]: linux7.grserver.gr (62.38.174.68[62.38.174.68]) - Refused PORT 10,0,0,1,8,151 (address mismatch)
Oct 12 20:48:10 linux7 proftpd[23404]: linux7.grserver.gr (62.38.174.68[62.38.174.68]) - Refused PORT 10,0,0,1,8,153 (address mismatch)
Oct 12 20:48:31 linux7 proftpd[23404]: linux7.grserver.gr (62.38.174.68[62.38.174.68]) - Refused PORT 10,0,0,1,8,155 (address mismatch)

I saw this in my /var/log/messages

anyone knows what it means ?

 

[mian]

probably someone behind NAT is trying to use your FTP server, when doing a list or download its telling it to connect to them at 10.0.0.1 which is obviously a LAN only IP so it wont work, they should be using passive mode.. is nothing to worry about.

 

[jamesyeeoc]

Definitely someone on the same router/NAT/LAN segment, or someone filling the PORT command with bogus IP info.

The PORT command takes arguments that are the IP address (comma separated) and
port (which is 2 bytes, comma separated).

 

[MaRiOs]

loool thats was stupid? or he was trying to achieve something ?