Starting apache2 server failed ?

[kdeuser]

Hello ,

Solved one problem and this never stops .......oh well .

Googled for this error and tried the various commands that seem to work for other`s ( except me of course ).

Here`s the screenshot :



Hope someone can help one this.

Thank you .

[claydoh]

Not that I can help, as Apache I have not used in some time, and then as part of a LAMP stack, you might want to specify which things you have tried, and where you found those things to try.

[kdeuser]

Hi claydoh,

Found 2 links which basically cover most of the methods used over different sites.

http://stackoverflow.com/questions/2...2-restart-fail

http://fogproject.org/forum/threads/...p-start.11106/

The second link is what in effect answered my own question in that apache2 was broken due to an external package.

This seems to be on the ball as i am still using bm2lts (it works) and with Nvidia but should you update/upgrade the software , you break distro function.

[claydoh]

Hmmm Please copy and paste the text in the terminal instead of posting a screenshot. makes for more work quoting any part of the error messages

https://help.ubuntu.com/community/Ap...lling_Apache_2
This probably would have been one of the first places to go, it even has a section specific to the error message you posted in the OP.
As we don't have any info on exactly what you did, and I sure cannot tell from link #2 how an external package was involved,



Then again, it is 430 in the morning, and I have yet to go to bed

[Feathers McGraw]

Are you running any other http servers? That error looks to me like something else is already listening on port 80, so Apache was unable to bind to it.

You can check which process it is with this command:

sudo netstat -tulpn | grep :80

Note that the "could not determine the server's fully qualified domain name" part is a warning not an error, you can get rid of it by putting this in any of your Apache configuration files:

ServerName foo.com

And then restart Apache:

sudo service apache2 restart

Sam

[kdeuser]

@Feathers McGraw,

There`s still a small problem with a kernel added to the original kernel.

Actually, have 3 kernels installed in Trusty 14.04.2 .

- 3.15.10 ( some more numbers here........ )
- 3.16.0.31
- 3.19.2 ( this kernel is excellent but a vital part of hardware does not output to screen )

Ran `sudo netstat -tulpn | grep :80` which gave me :

reel@BM2LTSR66RBex:/media/hd/home/reel$ sudo netstat -tulpn | grep :80
sudo: unable to resolve host BM2LTSR66RBex
[sudo] password for reel: 
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      3459/tntnet     
tcp        0      0 0.0.0.0:8001            0.0.0.0:*               LISTEN      3511/vdradmind  
tcp        0      0 0.0.0.0:8002            0.0.0.0:*               LISTEN      4708/lighttpd   
tcp        0      0 0.0.0.0:8009            0.0.0.0:*               LISTEN      4901/shellinaboxd
tcp6       0      0 :::80                   :::*                    LISTEN      3459/tntnet     
tcp6       0      0 :::8008                 :::*                    LISTEN      4870/vdr        
reel@BM2LTSR66RBex:/media/hd/home/reel$

Port 80 seems to be busy . How do you solve this ?

Concerning that `warning` message. In /etc/apache2/ i count 7 folders plus 3 files . Attempted to copy/paste to any folder/file but the os refused, so not clear on which folder /file to place `ServerName foo.com`in.

[Feathers McGraw]

The apache config files are owned by root, so you need to use sudo to edit them.

Nano is quite a nice and easy commandline text editor, I can't remember if it's installed by default, but if not you can install it like this:

sudo apt-get update
sudo apt-get install nano

...and then open the main apache config file using:

sudo nano /etc/apache2/apache2.conf

Make your changes, then CTRL X to exit, and save when prompted.

You might notice these lines at the bottom of the apache.conf file:

# Include generic snippets of statements
IncludeOptional conf-enabled/*.conf

# Include the virtual host configurations:
IncludeOptional sites-enabled/*.conf

These statements auto-load files like /etc/apache2/conf-enabled/foo.conf (related chunks of config) and /etc/apache2/sites-enabled/foo.com.conf (virtualhost files, which are config files for each individual website). So the modular way to do things is add files to /etc/apache2/conf-available/foo.conf and use the a2enconf command to create a symlink to the conf-enabled directory, e.g.:

sudo a2enconf foo

BTW, the related command for virtualhost files is a2ensite, and the commands to un-symlink the files again are a2disconf and a2dissite respectively. You can see that for my Apache server, I added a files called /etc/apache2/conf-available/servername.conf and symlinked it to /etc/apache2/conf-enabled/servername.conf because I wanted to keep it separate:

sam@samhobbs:~$ ll /etc/apache2/conf-enabled
total 8
drwxr-xr-x 2 root root 4096 Apr  2  2014 ./
drwxr-xr-x 8 root root 4096 Mar 11 12:56 ../
lrwxrwxrwx 1 root root   30 Mar 25  2014 charset.conf -> ../conf-available/charset.conf
lrwxrwxrwx 1 root root   40 Mar 25  2014 javascript-common.conf -> ../conf-available/javascript-common.conf
lrwxrwxrwx 1 root root   44 Mar 25  2014 localized-error-pages.conf -> ../conf-available/localized-error-pages.conf
lrwxrwxrwx 1 root root   46 Mar 25  2014 other-vhosts-access-log.conf -> ../conf-available/other-vhosts-access-log.conf
lrwxrwxrwx 1 root root   33 Mar 25  2014 phpmyadmin.conf -> ../conf-available/phpmyadmin.conf
lrwxrwxrwx 1 root root   31 Mar 25  2014 security.conf -> ../conf-available/security.conf
lrwxrwxrwx 1 root root   36 Mar 25  2014 serve-cgi-bin.conf -> ../conf-available/serve-cgi-bin.conf
lrwxrwxrwx 1 root root   33 Mar 25  2014 servername.conf -> ../conf-available/servername.conf

servername.conf contains:

# added 2014.03.25 to suppress apache warning on reboot
ServerName samhobbs

You need to reload apache after making changes like this:

sudo service apache2 reload

If you want to read about apache virtualhost files, you can check out this tutorial I wrote last year.

Sam

[Feathers McGraw]

forgot the other part of your question...

reel@BM2LTSR66RBex:/media/hd/home/reel$ sudo netstat -tulpn | grep :80 
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      3459/tntnet

Port 80 seems to be busy

tntnet is (apparently) a C++ webserver. Unless you installed it yourself, I guess it was pulled in by some other package.

Can you run this command? It should show us what installed tntnet:

apt-cache --installed rdepends tntnet

Sam

[kdeuser]

Thanks for the explanation there but still seem to get errors .

I added the line `ServerName foo.com` to the very bottom of `apach2.conf via the `sudo nano /etc/apache2/apache2.conf` command.

Output :

reel@BM2LTSR66RBex:/media/hd/home/reel$ sudo service apache2 reload
sudo: unable to resolve host BM2LTSR66RBex
[sudo] password for reel: 
Reloading web server: apache2 failed!
Apache2 is not running ... (warning).
reel@BM2LTSR66RBex:/media/hd/home/reel$

Followed by the `apt-cache --installed rdepends tntnet` command :

reel@BM2LTSR66RBex:/media/hd/home/reel$ apt-cache --installed rdepends tntnet
tntnet
Reverse Depends:
  tntnet-runtime
reel@BM2LTSR66RBex:/media/hd/home/reel$

Hope this helps.

[Feathers McGraw]

Ah, I forgot apache has to already be running to be reloaded. Since it didn't start, it isn't running. You will have to do:

sudo service apache2 start

...but that won't work until apache can bind to port 80, which it can't do while tntnet is running.

Try this:

apt-cache --installed rdepends tntnet-runtime

(you get the idea, we're going to keep going until we find whatever pulled the package in - hopefully!)

[kdeuser]

Readout of `apt-cache --installed rdepends tntnet-runtime`:

reel@BM2LTSR66RBex:/media/hd/home/reel$ apt-cache --installed rdepends tntnet-runtime
tntnet-runtime
Reverse Depends:
  tntnet
  libtntnet12
reel@BM2LTSR66RBex:/media/hd/home/reel$

[Feathers McGraw]

I have a horrible feeling this is going to be one big depewndency loop, but let's see...

apt-cache --installed rdepends libtntnet12

[kdeuser]

Dependencies , oh not again......

reel@BM2LTSR66RBex:/media/hd/home/reel$ apt-cache --installed rdepends libtntnet12
libtntnet12
Reverse Depends:
  tntnet-runtime
  tntnet
reel@BM2LTSR66RBex:/media/hd/home/reel$

Seems futile .

[Feathers McGraw]

Ha! Well. I don't know how that got installed if you didn't install it yourself and there are no dependencies, unless you've been installing random packages from outside the package management system?

Try this and see if stuff breaks:

sudo service tntnet stop

[kdeuser]

Result :

reel@BM2LTSR66RBex:/media/hd/home/reel$ sudo service tntnet stop
sudo: unable to resolve host BM2LTSR66RBex
[sudo] password for reel: 
Stopping web server: tntnet.
reel@BM2LTSR66RBex:/media/hd/home/reel$

Have not knowingly installed dependencies.