Wenn Sie das Tool "VirtualMin" (aka "WebMin") benutzen, um Ihren WebServer zu kontrollieren und administrieren, werden Sie nach den Updates Ihres Apache-WebServers bzw. von PHP teilweise böse Überraschungen erleben: Die PHP Scripte werden nicht mehr ausgeführt, sondern den Besuchern zum Download angeboten. Das ist ein katastrophaler Fehler in den Updates der Software !
Auszug des Apache-Updates:
Installing package(s) with command apt-get -y install apache2 .. Reading package lists... Building dependency tree... Reading state information... The following extra packages will be installed: apache2-mpm-worker apache2.2-bin apache2.2-common Suggested packages: www-browser The following packages will be upgraded: apache2 apache2-mpm-worker apache2.2-bin apache2.2-common 4 upgraded, 0 newly installed, 0 to remove and 19 not upgraded. Need to get 1742 kB of archives. After this operation, 328 kB disk space will be freed. Get:1 http://security.debian.org/ squeeze/updates/main apache2 amd64 2.2.16-6+squeeze11 [1400 B] Get:2 http://security.debian.org/ squeeze/updates/main apache2-mpm-worker amd64 2.2.16-6+squeeze11 [2224 B] Get:3 http://security.debian.org/ squeeze/updates/main apache2.2-common amd64 2.2.16-6+squeeze11 [302 kB] Get:4 http://security.debian.org/ squeeze/updates/main apache2.2-bin amd64 2.2.16-6+squeeze11 [1436 kB] Reading changelogs... Fetched 1742 kB in 0s (5059 kB/s) (Reading database ... 96060 files and directories currently installed.) Preparing to replace apache2 2.2.16-6+squeeze10 (using .../apache2_2.2.16-6+squeeze11_amd64.deb) ... Unpacking replacement apache2 ... Preparing to replace apache2-mpm-worker 2.2.16-6+squeeze10 (using .../apache2-mpm-worker_2.2.16-6+squeeze11_amd64.deb) ... Stopping web server: apache2 ... waiting .... Unpacking replacement apache2-mpm-worker ... Preparing to replace apache2.2-common 2.2.16-6+squeeze10 (using .../apache2.2-common_2.2.16-6+squeeze11_amd64.deb) ... Unpacking replacement apache2.2-common ... Preparing to replace apache2.2-bin 2.2.16-6+squeeze10 (using .../apache2.2-bin_2.2.16-6+squeeze11_amd64.deb) ... Unpacking replacement apache2.2-bin ... Processing triggers for man-db ... Setting up apache2.2-bin (2.2.16-6+squeeze11) ... Setting up apache2.2-common (2.2.16-6+squeeze11) ... Setting up apache2-mpm-worker (2.2.16-6+squeeze11) ... Starting web server: apache2. Setting up apache2 (2.2.16-6+squeeze11) ... .. install complete.
Soweit ist noch alles ok - "apache2-mpm-worker" wurde erkannt und aktualisiert.
Aber dann kommt das PHP5 Update:
Installing package(s) with command apt-get -y install php5 .. Reading package lists... Building dependency tree... Reading state information... The following extra packages will be installed: apache2-mpm-prefork libapache2-mod-php5 php5-cgi php5-cli php5-common php5-curl php5-gd php5-imap php5-ldap php5-mcrypt php5-mysql The following packages will be REMOVED: apache2-mpm-worker The following NEW packages will be installed: apache2-mpm-prefork libapache2-mod-php5 The following packages will be upgraded: php5 php5-cgi php5-cli php5-common php5-curl php5-gd php5-imap php5-ldap php5-mcrypt php5-mysql 10 upgraded, 2 newly installed, 1 to remove and 5 not upgraded. Need to get 12.6 MB of archives. After this operation, 8475 kB of additional disk space will be used. Get:1 http://security.debian.org/ squeeze/updates/main apache2-mpm-prefork amd64 2.2.16-6+squeeze11 [2284 B] Get:2 http://security.debian.org/ squeeze/updates/main php5-cli amd64 5.3.3-7+squeeze15 [2944 kB] [...] Get:11 http://security.debian.org/ squeeze/updates/main libapache2-mod-php5 amd64 5.3.3-7+squeeze15 [3038 kB] Get:12 http://security.debian.org/ squeeze/updates/main php5 all 5.3.3-7+squeeze15 [1058 B] Reading changelogs... Fetched 12.6 MB in 1s (9296 kB/s) dpkg: apache2-mpm-worker: dependency problems, but removing anyway as you requested: apache2 depends on apache2-mpm-worker (= 2.2.16-6+squeeze11) | apache2-mpm-prefork (= 2.2.16-6+squeeze11) | apache2-mpm-event (= 2.2.16-6+squeeze11) | apache2-mpm-itk (= 2.2.16-6+squeeze11); however: Package apache2-mpm-worker is to be removed. Package apache2-mpm-prefork is not installed. Package apache2-mpm-event is not installed. Package apache2-mpm-itk is not installed. (Reading database ... 96057 files and directories currently installed.) Removing apache2-mpm-worker ... Stopping web server: apache2 ... waiting .. Selecting previously deselected package apache2-mpm-prefork. (Reading database ... 96055 files and directories currently installed.) Unpacking apache2-mpm-prefork (from .../apache2-mpm-prefork_2.2.16-6+squeeze11_amd64.deb) ... Setting up apache2-mpm-prefork (2.2.16-6+squeeze11) ... Starting web server: apache2. (Reading database ... 96060 files and directories currently installed.) Preparing to replace php5-cli 5.3.3-7+squeeze14 (using .../php5-cli_5.3.3-7+squeeze15_amd64.deb) ... Unpacking replacement php5-cli ... [...] Preparing to replace php5-common 5.3.3-7+squeeze14 (using .../php5-common_5.3.3-7+squeeze15_amd64.deb) ... Unpacking replacement php5-common ... Selecting previously deselected package libapache2-mod-php5. Unpacking libapache2-mod-php5 (from .../libapache2-mod-php5_5.3.3-7+squeeze15_amd64.deb) ... Preparing to replace php5 5.3.3-7+squeeze14 (using .../php5_5.3.3-7+squeeze15_all.deb) ... Unpacking replacement php5 ... Processing triggers for man-db ... Setting up php5-common (5.3.3-7+squeeze15) ... Setting up php5-cli (5.3.3-7+squeeze15) ... Setting up php5-cgi (5.3.3-7+squeeze15) ... Setting up libapache2-mod-php5 (5.3.3-7+squeeze15) ... Reloading web server config: apache2. Setting up php5 (5.3.3-7+squeeze15) ... .. install complete.
Im letzten Log finden Sie die Ursache:
Der "apache2-mpm-worker" wird deinstalliert (Zeile 10) und
der "apache2-mpm-prefork" wird installiert.
Das ist falsch und führt zum o.a. Problem. Führen Sie daher Apache2/PHP Updates immer nur manuell aus und geben Sie in einer Shell (= Terminalsession, z.Bsp. per "PuTTY" oder "SSH") den folgenden Befehl ein:
apt-get install apache2-mpm-workerDadurch wird Apache wieder in der richtigen Modus versetzt:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED: apache2-mpm-prefork libapache2-mod-php5
The following NEW packages will be installed: apache2-mpm-worker
0 upgraded, 1 newly installed, 2 to remove and 4 not upgraded.
Need to get 0 B/2224 B of archives.
After this operation, 8475 kB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 96061 files and directories currently installed.)
Removing libapache2-mod-php5 ...
Module php5 disabled.
Run '/etc/init.d/apache2 restart' to activate new configuration!
dpkg: apache2-mpm-prefork: dependency problems, but removing anyway as you requested: apache2 depends on apache2-mpm-worker (= 2.2.16-6+squeeze11) | apache2-mpm-prefork (= 2.2.16-6+squeeze11) | apache2-mpm-event (= 2.2.16-6+squeeze11) | apache2-mpm-itk (= 2.2.16-6+squeeze11); however: Package apache2-mpm-worker is not installed. Package apache2-mpm-prefork is to be removed. Package apache2-mpm-event is not installed. Package apache2-mpm-itk is not installed.
Removing apache2-mpm-prefork ...
Stopping web server: apache2 ... waiting .
Selecting previously deselected package apache2-mpm-worker.
(Reading database ... 96055 files and directories currently installed.)
Unpacking apache2-mpm-worker (from .../apache2-mpm-worker_2.2.16-6+squeeze11_amd64.deb) ...
Setting up apache2-mpm-worker (2.2.16-6+squeeze11) ...
Starting web server: apache2.Hier muss in VirtualMin dringend nachgebessert werden. Die Updateroutinen müssen prüfen, welche Einstellungen und Apache/PHP5 Module laufen und diese bewahren. Nichts ist auf einem Webserver wichtiger als laufende Webseiten und (in fast allen Fällen) PHP.
