Hi folks, Ubuntu LAMP 6.06 amd64 The captioned server can be ssh connected on local pc running; $ ssh -p 2222 192.168.0.52 It has been working couple months without problem. Just discover it doesn't work. $ ssh -p 2222 192.168.0.52 Code: Bad port ' 2222' On /etc/ssh/sshd_config Code: # What ports, IPs and protocols we listen for Port 2222 Protocol 2 .... I haven't made any change on this file. Another strange thing is /var/log/sshd.log disappeared. $ sudo locate .log | grep sshd No printout Please help. TIA B.R. satimis
Hi chipsafts, $ ps aux | grep sshd Code: root 4194 0.0 0.1 25772 1164 ? Ss 23:51 0.00 /usr/sbin/sshd satimis 4595 0.0 0.0 3940 896 tty1 R+ 23:50 0:00 grep sshd $ sudo /etc/init.d/ssh reload Code: * reloading OpenBSD ......... [ok ] No improvement. Still can't connect. B.R. satimis
Hi ralic, To my surprise after switching off the server several hours it is working again now. $ ssh -p 2222 192.168.0.52 Code: The authenticity of host '192.168.0.52 (192.168.0.52)' can't be established. RSA key fingerprint is 87:8b:d7:e3:12:f7:8d:76:fe:2d:f7:64:f6:93:fc:a0. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '192.168.0.52' (RSA) to the list of known hosts. Ubuntu 6.06.2 LTS Password: Linux satimis.com 2.6.15-52-amd64-server #1 SMP Fri Jul 11 13:33:35 UTC 2008 x86 _64 GNU/Linux satimis.com 2.6.15-51-amd64-server #1 SMP Tue Feb 12 17:08:38 UTC 2008 x86_64 GN U/Linux The programs included with the Ubuntu system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. What I have done before; 1) deleting the content on; ~.ssh/know-hosts but without reboot afterwards. 2) changing Port 2222 to; Port 22 $ sudo /etc/init.d/sshd reload 3) Tried to ssh-connect the server; $ ssh -p 22 192.168.0.52 Code: Bad port ` 22` Failed 4) Changing Port 22 back to; Port 2222 then; $ sudo /etc/init.d/sshd reload Still failed to ssh connect the server. But I can't find /var/log/sshd.log $ sudo locate .log | grep sshd No printout $ sudo netstat -tnap Code: Password: Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:2401 0.0.0.0:* LISTEN 4261/xinetd tcp 0 0 0.0.0.0:40385 0.0.0.0:* LISTEN - tcp 0 0 0.0.0.0:2049 0.0.0.0:* LISTEN - tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN 3876/cyrmaster tcp 0 0 0.0.0.0:643 0.0.0.0:* LISTEN 4277/rpc.statd tcp 0 0 0.0.0.0:995 0.0.0.0:* LISTEN 3876/cyrmaster tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 3972/mysqld tcp 0 0 0.0.0.0:110 0.0.0.0:* LISTEN 3876/cyrmaster tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 3876/cyrmaster tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 3474/portmap tcp 0 0 127.0.0.1:2000 0.0.0.0:* LISTEN 3876/cyrmaster tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 4207/vsftpd tcp 0 0 192.168.0.52:53 0.0.0.0:* LISTEN 3806/named tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN 3806/named tcp 0 0 0.0.0.0:886 0.0.0.0:* LISTEN 4099/rpc.mountd tcp 0 0 192.168.0.52:631 0.0.0.0:* LISTEN 3843/cupsd tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 3843/cupsd tcp 0 0 0.0.0.0:8888 0.0.0.0:* LISTEN 4315/(squid) tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 4166/master tcp6 0 0 :::993 :::* LISTEN 3876/cyrmaster tcp6 0 0 :::995 :::* LISTEN 3876/cyrmaster tcp6 0 0 :::2222 :::* LISTEN 4195/sshd tcp6 0 0 :::110 :::* LISTEN 3876/cyrmaster tcp6 0 0 :::143 :::* LISTEN 3876/cyrmaster tcp6 0 0 :::80 :::* LISTEN 4361/apache2 tcp6 0 0 :::25 :::* LISTEN 4166/master tcp6 0 0 :::443 :::* LISTEN 4361/apache2 tcp6 0 144 ::ffff:192.168.0.52:2222 ::ffff:192.168.0.10:57324 ESTABLISHED4441/sshd: satimis B.R. satimis
Definitely something funny going on here. The error 'Bad port' indicates that the port is out of range (>0 and <=65535). The output you are posting: Code: $ ssh -p 22 192.168.0.52 Bad port ` 22` shows a space between the first ` and the first number of the port 22. It's the same in your earlier post. Basically this indicates that the port is not a number any longer and is being interpreted by ssh as a character string and further explains why it is 'out of range'. I'm not sure how that can happen though. But if you can find it and remove the space, I think it will solve your problem. Is your shell getting in the way somehow? What about trying: ssh -p "2222" 192.168.0.52? I really can't offer any ideas as to why the space between the -p and the 22 would become literal... Maybe ssh has been aliased? The sshd related output can be found in /var/log/auth.log. There isn't a specific sshd log file.
Hi ralic, Really something has been happened here. Its cause is known to me. I have been running; Code: $ ssh -p 2222 192.168.0.52 to connected the remote LAMP server for couple months without problem. Just tried; Code: $ ssh -p2222 192.168.0.52 It also works. Now both of them can work w/o problem. I have changed back on /etc/ssh/sshd_config ; Code: # What ports, IPs and protocols we listen for Port 2222 ... So Port 22 won't work anymore. $ tail /var/log/auth.log Code: Jul 20 20:10:23 satimis sshd[4444]: (pam_unix) session closed for user satimis Jul 20 20:10:46 satimis sshd[4463]: Accepted keyboard-interactive/pam for satimis from 192.168.0.10 port 60055 ssh2 Jul 20 20:10:46 satimis sshd[4466]: (pam_unix) session opened for user satimis by (uid=0) Jul 20 20:10:58 satimis sshd[4466]: (pam_unix) session closed for user satimis Jul 20 20:11:01 satimis CRON[4485]: (pam_unix) session opened for user root by (uid=0) Jul 20 20:11:01 satimis CRON[4485]: (pam_unix) session closed for user root Jul 20 20:12:01 satimis CRON[4488]: (pam_unix) session opened for user root by (uid=0) Jul 20 20:12:01 satimis CRON[4488]: (pam_unix) session closed for user root Jul 20 20:12:33 satimis sshd[4491]: Accepted keyboard-interactive/pam for satimis from 192.168.0.10 port 60057 ssh2 Jul 20 20:12:33 satimis sshd[4494]: (pam_unix) session opened for user satimis by (uid=0) I got it. Thanks. On another Ubuntu LAMP server 7.04 amd64 here it is; /var/log/sshd.log Therefore I thought sshd.log was missing. B.R. satimis
