topic Re: Problem in configuring sshd in inetd. in Operating System - Linux

Problem in configuring sshd in inetd.

skiran — Thu, 22 Dec 2005 04:31:03 GMT

Hello,

I want to remove sshd startup from RC script and put itin inetd.conf (tcp wrapper).
I have changed /etc services,hosts.allow,inetd.conf files as shown bellow. And killed the running sshd and pkill -HUP inetd. But it didnt work.

bwga507:/etc # uname -a
Linux bwga507 2.4.21-138-smp #1 SMP Fri Oct 31 00:51:31 UTC 2003 i686 unknown
bwga507:/etc # cat /etc/inetd.conf|grep ssh
ssh stream tcp nowait root /usr/sbin/tcpd /usr/sbin/sshd -i
bwga507:/etc # cat /etc/hosts.allow|grep ssh
sshd : ALL : ALLOW
bwga507:/etc # cat /etc/services |grep ssh
ssh 22/tcp # SSH Remote Login Protocol
ssh 22/udp # SSH Remote Login Protocol

Anything missing?
Could anyone help me on this?

Re: Problem in configuring sshd in inetd.

Alexander Chuzhoy — Thu, 22 Dec 2005 05:12:36 GMT

I see no reason to change anything with sshd.
It is compiled with tcp wrapper.
and after simply putting a line like:

sshd: ALL
in /etc/hosts.deny
you'll prevent access to it

Re: Problem in configuring sshd in inetd.

Ivan Ferreira — Thu, 22 Dec 2005 07:11:55 GMT

As Alexaner sayd, tcpwrappers are enabled in the sshd daemon even when it starts as a service.

ldd /usr/sbin/sshd

libwrap.so.0 => /usr/lib/libwrap.so.0 (0x00880000)

The libwrap enables the use of tcpwrappers.

Re: Problem in configuring sshd in inetd.

Steven E. Protter — Thu, 22 Dec 2005 07:37:43 GMT

Shalom,

sshd needs to be running to accept ssh client requests.

If the real purpose is to integrate sshd with tcp wrappers this can be done directly.

SEP