selective access to telnet

[ARUN_19]

hi,
O/S:ver 4.0F
how to grant selective access to telnet (based on host+USER)?? tho ACLs i can grant permission to certain users but not to certain hosts...

[Ralf Puchner]

The only way is to use the tcp wrappers delivered with V5.x (but unsupported on V4.0f). You can also install the opensource version but then you are on your own....

[Ralf Puchner]

Another idea:
Use screend and /etc/ifaccess.conf file to allow or permit access on IP/port base.

[HelpDesk_24]

Ralf,
what do you mean by "tcp wrappers"?

[Abdul Rahiman]

Few notes about TCP wrappers
TCP Wrapper is a public domain computer program that provides firewall services for Unix servers. The program was developed by Wietse Venema.

And I think it is bundled with the "Open Source Software Collection for Tru64 UNIX" CDROM.

It installs files for the tcpd daemons. And once installed you change the server process name(/usr/sbin/telnetd) to /usr/sbin/tcpd on your inetd.conf file.

You will then configure the access controls through a hosts.allow or hosts.deny file in the format ..

telnetd:IP Address.

This should get you started with tcp wrappers..

HTH

[ARUN_19]

closing old threads..