RE: [Nagios-users] Internal Server Error on Nagios 2.0
-Original Message- From: [EMAIL PROTECTED] [mailto:nagios-users- [EMAIL PROTECTED] On Behalf Of Pete Shelfo Sent: Tuesday, February 21, 2006 3:08 PM To: Jim Perrin Cc: nagios-users@lists.sourceforge.net Subject: RE: [Nagios-users] Internal Server Error on Nagios 2.0 I found the answer!!! Unfortunately installing Nagios via the RPM did not help. The problem lies within SELINUX. If I disable SELinux the CGI scripts work fine. /etc/selinux/config SELinux=disable Reboot the server Now the question is why does the security enhanced Linux module cause problems with the CGI scripts? I value a secure Linux server so I am off to research some more. Because the default policies are secure ;) The list archives are a great resource. Searching for SELinux yields -- http://article.gmane.org/gmane.network.nagios.user/33586/match=selinux -- Marc --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnkkid3432bid#0486dat1642 ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Internal Server Error on Nagios 2.0
On Tue, 2006-02-21 at 11:10 -0500, Pete Shelfo wrote: I recently tried to fire up a new Nagios server running on RedHat 4 Enterprise (fully patched). Everything works fine, pre-flight passed, http is correct, web page displays; however, whenever I access a CGI link on the left hand page I get the following error: I think if you made the font bigger we could help more. It's a common problem, but it has many (simple) solutions. This is an apache-related problem, not Nagios, though. You'll find it. signature.asc Description: This is a digitally signed message part
Re: [Nagios-users] Internal Server Error on Nagios 2.0
I recently tried to fire up a new Nagios server running on RedHat 4 Enterprise (fully patched). Everything works fine, pre-flight passed, http is correct, web page displays; however, whenever I access a CGI link on the left hand page I get the following error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [EMAIL PROTECTED] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. I have tried and tried to troubleshoot the problem but have had no success. 1. I have searched the forums, google and apache. It appears this is a common problem across many Linux platforms 2. I have chmod 777 /usr/local/nagios permissions fully with no success and added every userID I could like of to the group. 3. I have even tried a default configuration with one host, a check ping and along with all the sample configs. The problem still occurs. 4. I have verified my http conf and tried all types of suggestions I found during my searches. My http config error log displays the following: Tue Feb 21 10:43:50 2006] [error] [client 10.1.7.200] Premature end of script headers: status .cgi, referer: http://servername/nagios//side.html I am currently running Nagios version 1.1 with no issues. This really looks like an incompatibility with Apache or CGI or something? Anyone have any ideas – I am flat out? Your permissions or authentication via website is not correct (REMOTE_USER isn't being set). For RHEL systems, using the rpms provided by dag make things much easier, as the permissions etc are done for you. All you're left doing is adding users to the web authentication setup he provides and configuring services, or changing his auth to whatever auth system you use in your env. They work very well. -- They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety'' Benjamin Franklin 1775 --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnkkid3432bid#0486dat1642 ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
RE: [Nagios-users] Internal Server Error on Nagios 2.0
always cc the list so others may learn by your experiences. On Tue, 2006-02-21 at 15:15 -0500, Pete Shelfo wrote: Can you point me in a direction, give me ideas or possibly recommend a web resource? what happens when you run the status.cgi from the command line as the apache user? is this error happening with *all* cgis, or just this one? 'Premature end of script headers' *almost always* means the cgi is throwing an error (before completing headers the browser can understand). The best place to start is pasting in the error, in quotes, into google: http://www.google.com/search?q=%22Premature+end+of+script+headers%22 -Original Message- From: jeff vier [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 21, 2006 11:18 AM To: Pete Shelfo Cc: nagios-users@lists.sourceforge.net Subject: Re: [Nagios-users] Internal Server Error on Nagios 2.0 On Tue, 2006-02-21 at 11:10 -0500, Pete Shelfo wrote: I recently tried to fire up a new Nagios server running on RedHat 4 Enterprise (fully patched). Everything works fine, pre-flight passed, http is correct, web page displays; however, whenever I access a CGI link on the left hand page I get the following error: I think if you made the font bigger we could help more. It's a common problem, but it has many (simple) solutions. This is an apache-related problem, not Nagios, though. You'll find it. signature.asc Description: This is a digitally signed message part
RE: [Nagios-users] Internal Server Error on Nagios 2.0
I found the answer!!! Unfortunately installing Nagios via the RPM did not help. The problem lies within SELINUX. If I disable SELinux the CGI scripts work fine. /etc/selinux/config SELinux=disable Reboot the server Now the question is why does the security enhanced Linux module cause problems with the CGI scripts? I value a secure Linux server so I am off to research some more. -Original Message- From: Jim Perrin [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 21, 2006 11:19 AM To: Pete Shelfo Cc: nagios-users@lists.sourceforge.net Subject: Re: [Nagios-users] Internal Server Error on Nagios 2.0 I recently tried to fire up a new Nagios server running on RedHat 4 Enterprise (fully patched). Everything works fine, pre-flight passed, http is correct, web page displays; however, whenever I access a CGI link on the left hand page I get the following error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [EMAIL PROTECTED] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. I have tried and tried to troubleshoot the problem but have had no success. 1. I have searched the forums, google and apache. It appears this is a common problem across many Linux platforms 2. I have chmod 777 /usr/local/nagios permissions fully with no success and added every userID I could like of to the group. 3. I have even tried a default configuration with one host, a check ping and along with all the sample configs. The problem still occurs. 4. I have verified my http conf and tried all types of suggestions I found during my searches. My http config error log displays the following: Tue Feb 21 10:43:50 2006] [error] [client 10.1.7.200] Premature end of script headers: status .cgi, referer: http://servername/nagios//side.html I am currently running Nagios version 1.1 with no issues. This really looks like an incompatibility with Apache or CGI or something? Anyone have any ideas - I am flat out? Your permissions or authentication via website is not correct (REMOTE_USER isn't being set). For RHEL systems, using the rpms provided by dag make things much easier, as the permissions etc are done for you. All you're left doing is adding users to the web authentication setup he provides and configuring services, or changing his auth to whatever auth system you use in your env. They work very well. -- They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety'' Benjamin Franklin 1775 --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnkkid3432bid#0486dat1642 ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
