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Blocking ftp users to connect using telnet

 
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# 8  
Old 02-24-2005
Question Thank You very Much !!!
Quote:
Originally Posted by qfwfq
I have a REDHAT box and configure users this way in passwd file. Users then have ftp access but no telnet access.

user:x:1001:1000:FTP User:/home/user:/sbin/nologin

By the way, never use telnet but use SSH.
Smilie We have all kind of Unix and I don't know if there is /sbin/nologin in all of them (I'll look to this).

Smilie About SSH: Do you have any idea about how much it will cost for time / use processor ??? I think that it will be much slower than telnet...
# 9  
Old 02-24-2005
I guess ssh could be a bit slower but it depend on how your data are important to you. Security should always be your first priority...
# 10  
Old 02-24-2005
Quote:
Originally Posted by juliocdrm
Smilie About SSH: Do you have any idea about how much it will cost for time / use processor ??? I think that it will be much slower than telnet...
SSH works just fine. "No one" uses telnet anymore.... performance is not an issue.

Just do it..... don't use telnet.
# 11  
Old 02-24-2005
Quote:
"No one" uses telnet anymore.
Yes they do - even though ssh is available - they make cases against getting rid of it. It's unbelievable, but true!
# 12  
Old 02-24-2005
MySQL Re:Blocking ftp users to connect using telnet
Smilie Ok guys, I would like to thank all of you for the tips...

Since we have all kind os Unix on our network, is it the same way to restrict ?

- include '/sbin/nologin' on '/etc/shells';
- include '/sbin/nologin' as shell in /etc/passwd.

Anything different ?
 
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