Problems associated with removing packages from server

I uninstalled these packages from my ubuntu server :

apt-get remove postfix postfix-mysql postfix-doc mysql-client mysql-server courier-authdaemon courier-authlib-mysql courier-pop courier-pop-ssl courier-imap courier-imap-ssl postfix-tls libsasl2-2 libsasl2-modules libsasl2-modules-sql sasl2-bin libpam-mysql openssl phpmyadmin apache2 libapache2-mod-php5 php5 php5-mysql libpam-smbpass


I did this because i wanted a fresh reinstall, but after i did it i've been finding some problems. Anytime i type the Ip of my server on the webbrowser, my index page doesnt show up, my phpmyadmin doesnt come up, my cups and samba connection was lost. What did i destroy? what did i do wrong? Someone please help


The IP of my server is 10.0.11.25 if anyone wants to check my errors i get, i know its the removing of those packages that i did wrong. But cnt figure it

Ok i figured the CUPS and Samba, it needed to be reinstalled. I still have problems with PHP myadmin though.

Whenever i type: 10.0.11.25/phpmyadmin on the browser i get this message:

you have chosen to open which is a PHTML file: What should firefox do?


this happens either with wordpress, or any other thing that deals with php and mysql it looks like.

Well, you removed php5, and you expect PHP scripts (such as phpmyadmin and wordpress) to continue working? And postfix, too, in case you haven't noticed, your SMTP should be broken by now, too (if you use it).

*edit*
Oh, and apache.

CUPS and SAMBA probably depends on some of those packages, so they got uninstalled, too. Next time, check the dependency list before answering "Y" to apt-get.
*/edit*

Quote:

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Originally Posted by cyberfish

Well, you removed php5, and you expect PHP scripts (such as phpmyadmin and wordpress) to continue working? And postfix, too, in case you haven't noticed, your SMTP should be broken by now, too (if you use it).

*edit*
Oh, and apache.

CUPS and SAMBA probably depends on some of those packages, so they got uninstalled, too. Next time, check the dependency list before answering "Y" to apt-get.
*/edit*

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Ok but i have already runned apt-get install what i removed from the first command i executed that removed my programs. It says all packages have been installed, so i can't find the problem. U think it's not installing still?

Quote:

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Originally Posted by cyberfish

CUPS and SAMBA probably depends on some of those packages, so they got uninstalled, too. Next time, check the dependency list before answering "Y" to apt-get.
*/edit*

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I'm just learning about all this depency thing, how would i check what packages are needed, or probably needed, like u said maybe some were dependent on others?

Problem is, say if you have packages A, B, and C, where C depends on A.

If you do "apt-get remove A B", ALL of A, B and C will be removed, since C cannot function without A.

Then, if you do "apt-get install A B", A and B will be installed, but not C, since A and B don't depend on C.

Your best bet is probably to fire up synaptic and search for the names of the packages you need (samba, cups), and install everything that you think you may need.

Quote:

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Originally Posted by cyberfish

Problem is, say if you have packages A, B, and C, where C depends on A.

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Just typed in "Aptitude", how do i go about finding the programs missing u know?

Quote:

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I'm just learning about all this depency thing, how would i check what packages are needed, or probably needed, like u said maybe some were dependent on others?

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http://packages.ubuntu.com/
and search for the package.

When you try to do apt-get remove, it will also tell you packages that would also be automatically uninstalled.
For example -

Code:

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cyberfish@cyberfish-desktop:/local_data/wiki$ sudo apt-get remove gcc
Reading package lists... Done
Building dependency tree     
Reading state information... Done
The following packages will be REMOVED:
  build-essential eclipse-cdt g++ gcc gccxml libboost-python1.35-dev
0 upgraded, 0 newly installed, 6 to remove and 16 not upgraded.
After this operation, 35.7MB disk space will be freed.
Do you want to continue [Y/n]? n
Abort.

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Even though I only asked for GCC to be removed, 5 other packages will also need to be removed since they depend on GCC.

Yea, thanks Cyberfish the important thing now i know, it all has to do with missing packages, i'll see how i fix it up, and find out what exactly is missing. Damn this thing is hectic :), never thought servers were all this complicated

APT keeps a log in /var/log/apt/term.log

That might help.

Quote:

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Originally Posted by cyberfish

APT keeps a log in /var/log/apt/term.log

That might help.

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Ok thanks bro, thanks for the time, time to see if i figure it now

Cheers

Quote:

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Ok i figured the CUPS and Samba, it needed to be reinstalled. I still have problems with PHP myadmin though.

Whenever i type: 10.0.11.25/phpmyadmin on the browser i get this message:

you have chosen to open which is a PHTML file: What should firefox do?


this happens either with wordpress, or any other thing that deals with php and mysql it looks like.

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This may sound really dumb, but you have restarted apache after reinstalling PHP right?

AFAIK uninstalling then reinstalling the wordpress package through apt-get should give you everything you need for a LAMP server if you dont already have what you need.

Quote:

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Originally Posted by mike_g

This may sound really dumb, but you have restarted apache after reinstalling PHP right?

AFAIK uninstalling then reinstalling the wordpress package through apt-get should give you everything you need for a LAMP server if you dont already have what you need.

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Hmm yes i restarted teh apache server. I did the reinstallation of wordpress just now, and still nothing, it prompts me that it's a phtml file, and what should firefox do download or open? This has gotten me so annoyed, I've installed lots of packages, and still nothing, i dont know what i'm missing :S

Even when i do a : 10.0.11.25/testphp.php it says its a php file, what should firefox do?

Have you installed libapache2-mod-php5, or did you just install the php5 package?

Quote:

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Even when i do a : 10.0.11.25/testphp.php it says its a php file, what should firefox do?

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That means your PHP is not working, so apache is just sending the source to the browser. Normally, PHP would run the script first, and output HTML, which apache then return to the browser.

Quote:

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Originally Posted by Nightowl

Have you installed libapache2-mod-php5, or did you just install the php5 package?

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Yes i have, i just did a seperate apt-get just to be sure, and it says already newest version installed. LIke way back to the begninging i had done an apt-get install apache2 php5 mysql-server phpmyadmin

I just don't know whats the problem, cant figure it

Is apache2 or apache1.3 running?

Quote:

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Originally Posted by Nightowl

Is apache2 or apache1.3 running?

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Ok sorry to sound so dumb, but how do i know if it's running, what command should i run? Shouldn't it have started once i did a sudo /etc/init.d/apache2 restart ? If yea, then it is i believe

What I mean, is are you using apache version 2.x or 1.3.x?

My suggestions: (I have to sign off now)

- reinstall all the packages after having purged them with apt-get remove --purge <packagenames>
- Install a different version of the apache2 server (mpm-prefork, etc.)
- Google it

Hope this helps a little . . .

Quote:

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Originally Posted by Nightowl

What I mean, is are you using apache version 2.x or 1.3.x?

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Ok nightowl, thanks for the time, i think i might as well do a purge, and hopefully nothing else goes off :S, if thats teh case I'm starting over from scratch and to hell to trying to be the admin who tries to fix things from wher ehe is , lol


On adn it's apache 2.x

Quote:

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- reinstall all the packages after having purged them with apt-get remove --purge <packagenames>
- Install a different version of the apache2 server (mpm-prefork, etc.)

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That I don't think is a good idea... it will pull a lot of packages with it.

libapache2-mod-php5 is not the same as php5. php5 is the actual scripting engine, and libapache2-mod-php5 is the interface between Apache and PHP.

try

Code:

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apt-get install libapache2-mod-php5

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Quote:

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Originally Posted by cyberfish

That I don't think is a good idea... it will pull a lot of packages with it.

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Thats precisely why I'm contemplating on taking the packages off. I'm not sure what to do now :S

Quote:

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try

Code:

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apt-get install libapache2-mod-php5

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As for that I have done that also, and still it says the the newest version is already installed

Quote:

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Originally Posted by cyberfish

That means your PHP is not working, so apache is just sending the source to the browser. Normally, PHP would run the script first, and output HTML, which apache then return to the browser.

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Mhm yep i get what u mean, I'm all new to this man, but i'm understanding little by little. I'm trying different things i find on google but all so far have been futile

Btw u can try it out yourself by typing my ip etc and you'll exactly what i mean