[PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
Oops, I did it again! Once again, I've managed to kill SSHd on my server. Hurray! _ What I want to do now, is make a script start it again. I could just reboot the machine the hard way or carry a monitor/keyboard there, but I don't wanna do that at 7am. System: Linux Slackware 8.1 What I have and can access: Apache + PHP 4.3.2 FTP I got into this problem another time, just then the server was in a remote location but I managed to get a friend to drive me there and I started it blindfolded (no monitor, just keyboard). Then I called another friend while I was there to see if it got back up or not. Anyway; I want to make some sort of PHP backdoor to start sshd again. As far as I know, only root can do so though so just an exec() won't do. How can I switch to root, enter the password and then start sshd via a PHP script that I run via the web? I'd appriciate your help. //Simon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
Apache not running as root is a good thing, but probably is... Since it appears you are not the admin of the box, ask them to install Webmin (http://www.webmin.org/webmin) and to give your userid access to the ssh component. Webmin is installed, it's just not turned on. I am the administrator of the machine. I think he wants to do it from Apache /only/, instead of dragging a monitor/keyboard to the computer. But Apache is not running as root. Yes! I want to do a php script that somehow login as root (since apache is not running as root). Then I want it to start sshd. I wonder how you can kill ssh. I ssh to my computer 24/7 and never have I killed it. I changed some settings and used killall -HUP sshd like I've done many times before. Sure the session is killed, but I've been able to connect it again... just not this time. //Simon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
[EMAIL PROTECTED] Jason Wong: What I'm saying is apache/php has little part to play in system maintenance. Those solutions I proposed are started by root, once they've started they will (hopefully) ensure that sshd would be running, and auto-restarted whenever it is stopped (or in the case of using xinetd, whenever it is needed). I think he wants to do it from Apache /only/, instead of dragging a monitor/keyboard to the computer. But Apache is not running as root. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
Apache not running as root is a good thing, but probably is... Since it appears you are not the admin of the box, ask them to install Webmin (http://www.webmin.org/webmin) and to give your userid access to the ssh component. - Original Message - From: Simon Fredriksson [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, August 11, 2003 8:14 AM Subject: Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script. Yeah, but as it is, I can't start those things :P I must be root to do so. Apache is not running as root. //Simon Jason Wong wrote: On Monday 11 August 2003 13:01, Simon Fredriksson wrote: Anyway; I want to make some sort of PHP backdoor to start sshd again. As far as I know, only root can do so though so just an exec() won't do. How can I switch to root, enter the password and then start sshd via a PHP script that I run via the web? I know PHP is pretty versatile and all that, but I'm still amazed at the kinds of things that people want PHP to do when there are better and more appropriate alternatives: The simplest requiring no more than a shell script is to run a cron job which figures out whether sshd is running, if not start it. Further up the scale you can use xinetd. Even further, you can use something like daemontools to supervise your must run daemons. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
On Monday 11 August 2003 21:14, Simon Fredriksson wrote: Yeah, but as it is, I can't start those things :P I must be root to do so. Apache is not running as root. What I'm saying is apache/php has little part to play in system maintenance. Those solutions I proposed are started by root, once they've started they will (hopefully) ensure that sshd would be running, and auto-restarted whenever it is stopped (or in the case of using xinetd, whenever it is needed). -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * -- Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general -- /* If you teach your children to like computers and to know how to gamble then they'll always be interested in something and won't come to no real harm. */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
On Monday 11 August 2003 13:01, Simon Fredriksson wrote: Anyway; I want to make some sort of PHP backdoor to start sshd again. As far as I know, only root can do so though so just an exec() won't do. How can I switch to root, enter the password and then start sshd via a PHP script that I run via the web? I know PHP is pretty versatile and all that, but I'm still amazed at the kinds of things that people want PHP to do when there are better and more appropriate alternatives: The simplest requiring no more than a shell script is to run a cron job which figures out whether sshd is running, if not start it. Further up the scale you can use xinetd. Even further, you can use something like daemontools to supervise your must run daemons. -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * -- Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general -- /* It is so very hard to be an on-your-own-take-care-of-yourself-because-there-is-no-one-else-to-do-it-for-you grown-up. */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
edit /etc/inittab and add line ssh:345:respawn:/usr/bin/sshd Then tell init to reread its configuration: kill -1 1 Simon Fredriksson wrote: Oops, I did it again! Once again, I've managed to kill SSHd on my server. Hurray! _ What I want to do now, is make a script start it again. I could just reboot the machine the hard way or carry a monitor/keyboard there, but I don't wanna do that at 7am. System: Linux Slackware 8.1 What I have and can access: Apache + PHP 4.3.2 FTP I got into this problem another time, just then the server was in a remote location but I managed to get a friend to drive me there and I started it blindfolded (no monitor, just keyboard). Then I called another friend while I was there to see if it got back up or not. Anyway; I want to make some sort of PHP backdoor to start sshd again. As far as I know, only root can do so though so just an exec() won't do. How can I switch to root, enter the password and then start sshd via a PHP script that I run via the web? I'd appriciate your help. //Simon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
Yeah, but as it is, I can't start those things :P I must be root to do so. Apache is not running as root. //Simon Jason Wong wrote: On Monday 11 August 2003 13:01, Simon Fredriksson wrote: Anyway; I want to make some sort of PHP backdoor to start sshd again. As far as I know, only root can do so though so just an exec() won't do. How can I switch to root, enter the password and then start sshd via a PHP script that I run via the web? I know PHP is pretty versatile and all that, but I'm still amazed at the kinds of things that people want PHP to do when there are better and more appropriate alternatives: The simplest requiring no more than a shell script is to run a cron job which figures out whether sshd is running, if not start it. Further up the scale you can use xinetd. Even further, you can use something like daemontools to supervise your must run daemons. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] [PROBLEM] Killed sshd, want to start it via PHP script.
* Thus wrote Simon Fredriksson ([EMAIL PROTECTED]): Oops, I did it again! Once again, I've managed to kill SSHd on my server. Hurray! _ I wonder how you can kill ssh. I ssh to my computer 24/7 and never have I killed it. Curt -- I used to think I was indecisive, but now I'm not so sure. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
