troubleshooting Question

OpenSSH Port Mystery

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fvillena asked on
Anti-Virus AppsWeb Servers
3 Comments1 Solution505 ViewsLast Modified:

I have OpenSSH operating on a Windows 2003 Server and recently we noticed that we where receiving brute force login attempts.

I saw that OpenSSH uses port 22 so we locked down access to the server via this port to a limited number of IP Addresses.

However we are still receiving login attempts as the below event log shows

The description for Event ID ( 0 ) in Source ( sshd ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: sshd : PID 2416 : Failed password for illegal user mike from port 49919 ssh2.

At first I thought our ISP hadn't configured the firewall rule correctly but if I try to telent port 22 from an unlisted IP address the server correctly refuses the connection.

Any ideas?

Thanks in advance
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