Deny rsh,tn,or rlogin


 
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Operating Systems AIX Deny rsh,tn,or rlogin
# 1  
Old 03-28-2013
Deny rsh,tn,or rlogin

Is there a way to deny access to a specific remote login option.

example:
usera--deny telnet access but keep rsh and rlogin
userb--keeps telnet, rsh, and rlogin

I'm basically trying to contol the access per services instead of changing the LOGIN REMOTELY(rsh,tn,rlogin) option to yes or no.
# 2  
Old 03-28-2013
tcp_wrappers is what comes to mind. It is available via AIX standard media as well as via various download sites (I should probably repackage it myself).

---------- Post updated at 06:14 PM ---------- Previous update was at 06:07 PM ----------

Some quick links:
Using TCP Wrappers to control access
aix tcp wrappers hosts.allow hosts.deny?
TCP Wrappers on AIX 5.3
https://www.unix.com/unix-advanced-ex...ing-users.html
TCP wrappers

So, above - 1 from ibm developerworks, 4 from unix.com
# 3  
Old 03-29-2013
Michaels suggestion is a good one. It should be pointed out, though, that using ANY of the mentioned protocols - rsh, telnet, rlogin, ... - is a severe security hazard and should be replaced by some securified protocol: ssh, scp, etc..

I hope this helps.

bakunin
# 4  
Old 05-07-2013
hii broo..

You must check the config inetd.conf

or edit this: vi /etc/inetd.conf

deleted # telnet
# 5  
Old 05-08-2013
To edit /etc/inetd.conf I would recommend using the command
Code:
# smitty otherserv

# 6  
Old 05-08-2013
If you comment out the services, inet will not listen.
# 7  
Old 05-09-2013
With AIX, it is not considered "best practice" to edit the files directly. Sometimes it cannot be helped (non-standard services, i.e. services not supplied on AIX media) - but yes, if you edit the file - comment or delete the entry you do not want THEN! run refresh -s inetd
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