Home server not responding to HTTP

Question

I have a home server running Ubuntu 11.10.
It is currently configured to have a static IP address via my router.
I also use a Dynamic DNS service built into the router to update my domain name to point to that statically assigned domain name.

I can access the server via SSH using either the internal IP address or the domain name.

However, when I tried to access it via a browser, it says it cannot connect. I even tried to read it from the local computer using wget localhost and that says connection refused.

I then used sudo netstat -lep --tcp and there was no apache2 in the output. I don't know what its doing now.

I have apache2 installed, have restarted it, rebooted my computer and even reinstalled it.

Checking the logs, I see the following error:

/usr/sbin/apache2: symbol lookup error: /usr/lib/php5/20090626+lfs/pdo_mysql.so: undefined symbol: php_pdo_declare_long_constant

Answer 1

fast way to test if apache is running
ps -C httpd
if you have nmap installed see if the port is open
nmap -p 80 127.0.0.1 if this returns 80/tcp open httpd the problem is in your routing

see bugs.php.net/bug.php?id=57855 , for this error looks like a version mismatch apache php-pdo mysql.so module