5rc7 ssh still crashing

RouterOS General
1

I have a rb1100 that still has the crashing ssh server issue.

I have to VPN into it then connect via telnet.

It’s a very heavily used router and I can’t reboot it all the time just to fix it.

2

Please, send the following information to support@mikrotik.com

  • support output file generated, when the problem is present;
  • output from ssh -v -l admin x.x.x.x
3

Hi, have same problem.
You have a memory leak?

4

dimedrol, could you provide us with the same information?

5

I wrote at support@mikrotik.com
Ticket#2010112266000421

6

dimedrol, we have replied to you in November and not received any feedback.

7

I think I have a similar issue. (5.0rc7 on a RB1100)

If I connect via SSH, and don’t logout, but rather “exit” the terminal app (Mac OSX) then i’m unable to login again via SSH - I get a connection refused.

/ip service set ssh disabled=yes
/ip service set ssh disabled=no

fixes the problem, and I can login again. I suspect that since the SSH connection didn’t exit cleanly, something gets hung.

Let me know if submitting a support outfile is of any use.

here’s the output from “ssh -v” in the connection refused state.

$ ssh rb1100 -v
OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009
debug1: Reading configuration data /Users/nnn/.ssh/config
debug1: Applying options for *
debug1: Reading configuration data /etc/ssh_config
debug1: auto-mux: Trying existing master
debug1: Control socket “/Users/nnn/.ssh/master-nnn@rb1100:22” does not exist
debug1: Connecting to rb1100 [192.168.13.102] port 22.
debug1: connect to address 192.168.13.102 port 22: Connection refused
ssh: connect to host rb1100 port 22: Connection refused

8

mdatic,
please contact support (support@mikrotik.com), we will give you pre-release package, where the problem is fixed (most likely).

9

I’ve also installed 5.0rc7 on two different devices this evening (RB1000 and RB1100), and although SSH was working at first, it is now failing for me too.

ssh: connect to host ___ port 22: Connection refused

Any ideas how I can fix this?

10

I can confirm that enabling and disabling ssh temporarily fixes the issue for me too.

11

to follow up on this:

i’ve tested the pre-release package, and so far, it seems to resolve the issues i’ve had before with SSH.

12

Mikrotik just sent me the pre-release 5.0rc8, and this seems to have also fixed the SSH issues for me on the 2 devices I was testing - an RB1000 and RB110.