update to glibc-2.3.2-4.80 makes ssh refuse connections

update to glibc-2.3.2-4.80 makes ssh refuse connections

Post by Robert Moni » Sat, 22 Mar 2003 00:11:57



Hi.

We just applied this update to some of our machines, and now when we
try to connect via ssh from an outside host, we get the message:
"Connection closed by 150.108.xx.xx".   This happens prior to
authentication.  We can connect to that machine with no problems from
other hosts within the 150.108 domain.  Machines that are still on
glibc-2.2.93-5 are accessible as before from inside and outside the
domain.  The connection attempts that fail do not generate any lines
in /var/log/messages or /var/log/secure.

We are trying to figure out what is going on here.  Any clues?

Thanks,
Bob Moniot
Fordham University

 
 
 

update to glibc-2.3.2-4.80 makes ssh refuse connections

Post by Rex Diete » Sat, 22 Mar 2003 00:45:19



Quote:> We just applied this update to some of our machines, and now when we
> try to connect via ssh from an outside host, we get the message:

You need to restart the sshd service after the glibc update.

-- Rex

 
 
 

update to glibc-2.3.2-4.80 makes ssh refuse connections

Post by Robert Moni » Sun, 23 Mar 2003 03:39:34





> > We just applied this update to some of our machines, and now when we
> > try to connect via ssh from an outside host, we get the message:

> You need to restart the sshd service after the glibc update.

> -- Rex

That did it.  We found that sendmail also needed to be restarted.  At
that point we decided that a reboot would be a good idea, instead of
waiting to see what else might be out of order.

Thanks,
Bob

 
 
 

1. SSH to/from localhost works but ssh from remote fails (receives "Connection refused")

I recently upgraded to openssh-3.1 and now sshd refuses connections
from remote hosts.  Running "ssh localhost" works fine.  Trying to ssh
from remote system fails.  I have tried to force ssh2.  I verified the
remote host is not blocked in hosts.deny and that hosts.allow is
ALL:ALL.  I also verified that ipchains is not blocking requests to
port 22 (and iptables is not running).  There are no errors in
/var/log/secure.  The /etc/ssh/sshd_config is all defaults.

Here's the output running ssh client verbose from a remot host:

bash-2.03$ ssh -v -2 dhaller2.workstation
SSH Version OpenSSH_2.2.0p1, protocol versions 1.5/2.0.
Compiled with SSL (0x0090581f).
debug: Reading configuration data /usr/local/etc/ssh_config
debug: ssh_connect: getuid 2028 geteuid 2028 anon 1
debug: Connecting to dhaller2.workstation [10.102.10.33] port 22.
debug: connect: Connection refused
debug: Trying again...
debug: Connecting to dhaller2.workstation [10.102.10.33] port 22.
debug: connect: Connection refused
debug: Trying again...
debug: Connecting to dhaller2.workstation [10.102.10.33] port 22.
debug: connect: Connection refused
debug: Trying again...
debug: Connecting to dhaller2.workstation [10.102.10.33] port 22.
debug: connect: Connection refused
Secure connection to dhaller2.workstation refused.
debug: writing PRNG seed to file /home/dhaller/.ssh/prng_seed

Here are the relevant rpms by running rpm -qa | grep openss
openssh-3.1p1-6
openssl-0.9.6b-28
openssh-server-3.1p1-6
openssl-devel-0.9.6b-28
openssh-clients-3.1p1-6


debug1: sshd version OpenSSH_3.1p1
debug1: private host key: #0 type 0 RSA1
debug1: read PEM private key done: type RSA
debug1: private host key: #1 type 1 RSA
debug1: read PEM private key done: type DSA
debug1: private host key: #2 type 2 DSA
socket: Address family not supported by protocol
debug1: Bind to port 22 on 0.0.0.0.
Server listening on 0.0.0.0 port 22.
Generating 768 bit RSA key.
RSA key generation complete.

Any ideas?  

Thanks,
drew

2. removing functions from a shared object.

3. glibc-2.3.2 again...

4. X-Windows Terminal Emulator

5. glibc-2.3.2

6. Why my terminal screen does not work properply?

7. Error to compile glibc-2.3.2 link to nptl

8. GETTY problems

9. Error compile glibc-2.3.2 link nptl-0.29

10. ipchains : ssh or telnet -> Connection refused

11. ssh connections refused, sshd problem

12. ssh - secure connection refused

13. VNC ssh tunnel through http. Connection refused problem.