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  • #1

    Cloudlinux 7.1 and PHP Selector

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  • #2
    Hello,

    Ive installed a fresh Cloudlinux 7.1, registered and installed CageFS, LVM and PHP Selector. My goal is to run this server globally with a version of PHP 5.3. CentOS 7.1 comes with PHP 5.4 so this is the way Ive used to temporary downgrade the version and in the future handle the upgrades.
    From the yum output, all seems correctly installed. Ive performed following commands:

    Code:
    yum install cagefs

/usr/sbin/cagefsctl --init

yum install lvemanager

yum groupinstall alt-php

yum upd ate cagefs lvemanager

selectorctl --list

selectorctl --current

selectorctl --set-current=5.3

cagefsctl --enable-all
    Im NOT using any WEB gui to manage sites like Plesk or whatever. Ive a single virtual host. BTW, even if Ive se t-up the default PHP 5.3 it continues to use the native PHP 5.4.

    Code:
    selectorctl  --current --show-native-version

5.3     5.3.29  /opt/alt/php53/usr/bin/php-cgi
    If I open the browser pointing it to a test paghe with:

    Code:
     phpinfo()?>
    I got always the PHP 5.4.
    Im missing the part on how manually switch the PHP version for apache.

    Any help?

    Thanks a lot!

    Comment

    • #3
      Did you restart Apache after making the changes?

      Comment

      • #4
        Yes, Ive restarted it (apache 2.4).
        Nothing changed. Is there a way to check-debug it? Maybe Im missing some steps

        Comment

        • #5
          After you ran $ /usr/sbin/cagefsctl --init
          Did you create the skeleton directory?
          $ mkdir /home/cagefs-skeleton
          $ ln -s /home/cagefs-skeleton /usr/share/cagefs-skeleton
          http://docs.cloudlinux.com/index.html

          Comment

          • #6
            As written in the DOC the init does the job. I need the steps you mentioned only if I have not enough space. Look:

            Code:
            # ls -al /usr/share/cagefs-skeleton/

total 76

drwxr-xr-x   13 root root   141 Oct 22 16:57 .

drwxr-xr-x. 122 root root  4096 Oct 22 16:57 ..

lrwxrwxrwx    1 root root     7 Oct 22 16:57 bin -> usr/bin

drwxr-xr-x    4 root root  8192 Oct 22 16:58 dev

drwxr-xr-x    2 root root     6 Oct 22 16:57 etc

dr-xr-xr-x.  28 root root  4096 Oct 22 16:55 lib

dr-xr-xr-x.  55 root root 36864 Oct 22 16:56 lib64

drwxr-xr-x.   6 root root    46 Oct 22 16:55 opt

dr-xr-xr-x  496 root root     0 Oct 22 16:50 proc

drwxr-xr-x    2 root root     6 Oct 22 16:57 root

drwxr-xr-x    3 root root    22 Oct 22 16:57 run

lrwxrwxrwx    1 root root     8 Oct 22 16:57 sbin -> usr/sbin

drwxr-xr-x    2 root root     6 Oct 22 16:57 tmp

drwxr-xr-x   12 root root   135 Jun 24 17:52 usr

drwxr-xr-x    9 root root    94 Oct 22 16:57 var
            Also the dirs are ok, so I think.
            I missing how apache knows to use the alternate version of PHP.
            Looking on the loaded files:

            Code:
            # lsof | grep php

(...)

httpd     40048        apache  mem       REG              253,0    256560  405692052 /usr/lib64/php/modules/pdo.so

(...)
            Nothing points me that the alternate version is in use, that should be in a different path, in example, for pdo, not in usr/lib but in opt:

            Code:
            # locate pdo.so

/opt/alt/php51/usr/lib64/php/modules/pdo.so

/opt/alt/php52/usr/lib64/php/modules/pdo.so

/opt/alt/php53/usr/lib64/php/modules/pdo.so

/opt/alt/php54/usr/lib64/php/modules/pdo.so

/opt/alt/php55/usr/lib64/php/modules/pdo.so

/opt/alt/php56/usr/lib64/php/modules/pdo.so

/opt/alt/php70/usr/lib64/php/modules/pdo.so

/usr/lib64/php/modules/pdo.so
            What Im missing...?

            ADD
            I think not having any control panel, I need to setup the apache config files to point to the new php manually per virtualhost. So I need help on that (I think)

            Comment

            • #7
              Hi,

              Well, its hard to decide what is wrong there, but for proper php-selector work you need active system user with enabled cagefs, as all php-switches are done with prelinking inside cagefs. I suggest you using the following KB article as base for your setup: http://kb.cloudlinux.com/2015/09/con...control-panel/

              Comment

              • #8
                Hello!

                Thanks a lot for the link. Ive made some steps forward, but Im getting some errors. Ive corrected the setup to match the CentOS 7.1 version.
                So, switching to the user I can see the right php version:

                ROOT:

                Code:
                # php -v

PHP Warning:  PHP Startup: No such handler: gdbm in Unknown on line 0

PHP 5.4.16 (cli) (built: Jun 23 2015 21:17:27)

Copyright (c) 1997-2013 The PHP Group

Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies
                USER:

                Code:
                # su - my_user

Last login: Mon Oct 26 09:02:52 CET 2015 on pts/2

-bash-4.2$ php -v

PHP 5.3.29 (cli) (built: Aug 19 2015 10:05:30)

Copyright (c) 1997-2014 The PHP Group

Zend Engine v2.3.0, Copyright (c) 1998-2014 Zend Technologies
                The document root of the site is located here:

                Code:
                DocumentRoot /home/my_user/jail/ramdisk/my_site/
                Ive recompiled suexec as well and it matches now:

                Code:
                # suexec -V

-D AP_DOC_ROOT="/home"

-D AP_GID_MIN=500

-D AP_HTTPD_USER="apache"

-D AP_LOG_EXEC="/usr/local/apache2/logs/suexec_log"

-D AP_SAFE_PATH="/usr/local/bin:/usr/bin:/bin"

-D AP_UID_MIN=500

-D AP_USERDIR_SUFFIX="public_html"
                BTW a phpinfo shows me always the default php.
                Does the "AP_USERDIR_SUFFIX" have something to do not matching the default users DocumentRoot?

                Here my httpd conf:

                Code:
                ServerName www.my_site

ServerAlias new.my_site

DocumentRoot /home/my_user/jail/ramdisk/my_site/

ErrorLog /home/my_user/jail/logs/my_site_error_log

CustomLog /home/my_user/jail/logs/my_site_access_log combined

ScriptAlias /cgi-bin/ /home/my_user/jail/ramdisk/my_site/cgi-bin/

SuexecUserGroup my_user my_user

AllowOverride FileInfo AuthConfig Indexes Limit Options=Indexes,FollowSymLinks

Options +MultiViews +Indexes +SymLinksIfOwnerMatch +IncludesNoExec +FollowSymLinks +ExecCGI

Require all granted

AddHandler php5-fastcgi .php

Action php5-fastcgi /cgi-bin/php.fcgi

AllowOverride None

Options +FollowSymLinks

Require all granted
                Ive tried the suPHP version as well, but cannot find the package in the Cloudlinux repo:

                Code:
                # yum install mod_suphp

Loaded plugins: dellsysid, fastestmirror, rhnplugin

This system is receiving updates from CLN.

Loading mirror speeds from cached hostfile

* cloudlinux-x86_64-server-7: cl-mirror.cloud.dk

* epel: mirror.de.leaseweb.net

No package mod_suphp available.

Error: Nothing to do
                Suggestions?

                Thanks!

                Simon

                Comment

                • #9
                  As far as I see you have configured php to use fastcgi, if so mod_suphp is not needed.

                  Anyway, next step is to check if your user has been properly identified when opening from web, please create a simple php script to display whoami:

                  Code:
                  <?php echo exec("whoami") ; ?>
                  I see you defined SuexecUserGroup in virtualhost, but if this test page will say root/nobody it means something not Ok with suexec, or it was not loaded.

                  If you see username then check if suexec is really patched, you should see some LVE functions in binary, like:

                  Code:
                  $ strings /usr/local/apache/bin/suexec | grep -i lve

liblve.so.0

lve_jail_uid

failed to init LVE library %s

                  Comment

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