Skip to main content

Plesk + Apache + PHP (FastCGI): Constant session permissions problems, conflicts between HTTP / HTTPS



I've just moved a collection of sites over to a brand-new server, running Apache 2.2.3, PHP 5.3, and Plesk 10.1.1. I am having problems with file permissions on PHP sessions, which are being stored in /var/lib/php/session.



I originally set the permissions like so for this folder:



drwxrwx--- 2 apache psacln 8192 Mar 22 23:25 session



This worked fine, for HTTP sessions. Files were being saved in that folder with these permissions:



-rw------- 1 client1        psacln 0 Mar 22 23:24 sess_507...
-rw------- 1 client2        psacln 0 Mar 22 23:25 sess_8o1...


The problem, however, is that PHP scripts accessed via HTTPS do not seem to be run by the same client1 or client2 user. I deleted files in the session directory and accessed a login page via HTTPS to see how sessions were being saved when initiated via this protocol:



-rw------- 1 apache         apache 0 Mar 22 23:25 sess_507...



So, for whatever reason, sessions initiated by clients browsing with HTTPS were being saved by apache:apache, while sessions from HTTP clients were saved with someclient:psacln.



What I'd like to ask:




  1. How can I avoid this problem with session permissions? When sessions are created via unencrypted HTTP and a client visits an HTTPS portion of the site, permission errors are shown, since apache:apache tries to access the session save created by someclient:psacln. The converse is also true.



    1. Can I change the user which runs the Apache HTTPS server, via Plesk or the command line?

    2. If not, can I have PHP sessions save with rw-rw---- permissions, and then add apache to the psacln group?

    3. Any other suggestions on how to fix this issue?



Answer



Change your /etc/php.ini file:



session.save_path = "0;0660;/var/lib/php/session"



PHP 5.3.5 mabe will save your session file as -rw-r-- if it does, then you need to edit your application, use the code instead only start_session():



usermod(0);
start_session();


then it will save the session files with -rw-rw-- permission.



You will also need to change your apache group to psacln (your server maybe running as apache:apache because some updated from apache has overwrite the config file).




Edit your httpd.conf



change from:



user = apache
group = apache


To:




user = apache
group = psacln


Now if you change from mod_php to FastCGI and back, you will not have conflict with your session permissions.



Don't forget to restart your apache server after the changes /etc/init.d/httpd restart



If you are using a debian distro, your daemon command will be /etc/init.d/apache restart and your config files will be inside a synonymous folder like /etc/php/apache/php.ini and /etc/apache/httpd.conf or /etc/apache/apache.conf



Comments

Post a Comment

Popular posts from this blog

linux - iDRAC6 Virtual Media native library cannot be loaded

When attempting to mount Virtual Media on a iDRAC6 IP KVM session I get the following error: I'm using Ubuntu 9.04 and: $ javaws -version Java(TM) Web Start 1.6.0_16 $ uname -a Linux aud22419-linux 2.6.28-15-generic #51-Ubuntu SMP Mon Aug 31 13:39:06 UTC 2009 x86_64 GNU/Linux $ firefox -version Mozilla Firefox 3.0.14, Copyright (c) 1998 - 2009 mozilla.org On Windows + IE it (unsurprisingly) works. I've just gotten off the phone with the Dell tech support and I was told it is known to work on Linux + Firefox, albeit Ubuntu is not supported (by Dell, that is). Has anyone out there managed to mount virtual media in the same scenario?
Post a Comment
Read more

ubuntu - Monitoring CPU, Mem, disk, on a single server

I've been looking for a simple starter solution for monitoring my [currently] single server hosted solution. Other than Nagios and similar, are there other good (simple) solutions people are using? Answer Everything depends on what you want. For example Munin is very simple, you can install and configure it in less then 10 minutes (on one server), it can sends alarms, make graphs from monitoring cpu, mem. apache connections, eaccellerator, disk io and many many more (it has many plugins). But if you are planning in future get some more machines, munin may not be enough. For example in munin you cant monitor state of individual processes, can't monitor changes in files (for security purpose). So if you wanna only see what is the utilization of basics parameters on your server and don't plan to buy some more servers Munin is what you are looking for, but if you wanna be alarmed when some of your service is down, take more control on what is happeninig on...
Post a Comment
Read more

hp proliant - Smart Array P822 with HBA Mode?

We get an HP DL360 G8 with an Smart Array P822 controller. On that controller will come a HP StorageWorks D2700 . Does anybody know, that it is possible to run the Smart Array P822 in HBA mode? I found only information about the P410i, who can run HBA. If this is not supported, what you think about the LSI 9207-8e controller? Will this fit good in that setup? The Hardware we get is used but all original from HP. The StorageWorks has 25 x 900 GB SAS 10K disks. Because the disks are not new I would like to use only 22 for raid6, and the rest for spare (I need to see if the disk count is optimal or not for zfs). It would be nice if I'm not stick to SAS in future. As OS I would like to install debian stretch with zfs 0.71 as file system and software raid. I have see that hp has an page for debian to. I would like to use hba mode because it is recommend, that zfs know at most as possible about the disk, and I'm independent from the raid controller. For us zfs have many benefits, ...
Post a Comment
Read more