Problem with ubuntu VPS

koslibpro · 06-24-2012, 04:13 AM

Hello everyone,

I just rent an Ubuntu VPS and started transfering my files via sFTP from the shared host i used till now to host my 5 websites.

Thus i logged in to my domain registrar panel to change the NameServers,i transfered the files to my VPS and from the DNS manager of my VPS company,i added an A record for each website.
Of course i had already set the httpd.conf apache file and made it look like this>>
<VirtualHost *:80>
ServerName mysite.com
DocumentRoot /var/www/mysite.com
</VirtualHost>
<VirtualHost *:80>
ServerName www.mysite.com
DocumentRoot /var/www/mysite.com
</VirtualHost>

But now,about a day later,none of my websites is appearing online!All appear to be offline!

Have i made anything wrong?Do i have to do something more to get them back online?

Thank you in advance

sag47 · 07-25-2012, 10:16 AM

Double check the IP of your VPS. Run nslookup on your domains and compare to VPS IP to ensure that the DNS is properly pointing to the correct IP.

Code:

nslookup www.yourdomain.com

If all of the DNS information is correct then run nmap against your domain to scan for open ports.

Code:

nmap www.yourdomain.com

IF NO ports listening from nmap command.
Check which interface httpd is listening on with the netstat command.

Code:

netstat -nlp | grep 'httpd\|apache'

If you're running a firewall (you should be) then check the firewall settings to ensure that desired ports are allowed.

IF PORTS ARE listening from nmap command.
Check if the service listening is HTTP 1.1 using telnet and openssl (for the case of ports 80 and 443).

Code:

#for port 80 plain text http
telnet www.yourdomain.com 80
GET /

#for port 443 https
openssl s_client -connect www.yourdomain.com:443
GET /

Do those steps in order and please report back your results. We'll try to go from there once the situation is more properly assessed.

SAM