Welcome to the Power Users community on Codidact!
Power Users is a Q&A site for questions about the usage of computer software and hardware. We are still a small site and would like to grow, so please consider joining our community. We are looking forward to your questions and answers; they are the building blocks of a repository of knowledge we are building together.
Post History
Many automated scanners will attempts brute forcing SSH servers running on port 22 using common username+password pairs. This is relatively easy. You just have to pick an IP range and you have as m...
Answer
#1: Initial revision
by
gronostaj
·
2021-06-28T06:19:10Z (over 3 years ago)
Many automated scanners will attempts brute forcing SSH servers running on port 22 using common username+password pairs. This is relatively easy. You just have to pick an IP range and you have as many ports to test as there are IPs in the range (one port per IP). Change the SSH port to a different one and now there are thousands of ports to test per IP in that same range. This makes this type of attack unfeasible. Finding an open SSH port on a particular host is relatively easy, but if you're attempting to brute force thousands of hosts it may not be worth it. There are many easier targets.