UNIX and Linux Applications

Hi All,

Hope this is the correct thread to ask this, if not, can an admin please move it to the correct thread.


Got a wee problem I hope someone can point me in the right direction.

I have Network A with two servers hosting separate webpages (I will call these WP1 & WP2). A DMZ server used for reverse proxy. And Network B where end users can point to URLs that will hit Network A web sites.

DMZ server is ubuntu 16.04

Network A is fine and runs fine for everyone in Network A to display WP1 & WP2.

In DMZ, I can use the URLs in a browser and WP1 loads with normal speed but WP2 loads super slow, but does eventually display.

In the ubuntu DMZ server, the /etc/apache2/sites-available/ I have 2 separate configs, one for each webpage to display.

Also, I have added in the IP of the servers and the hosts file in /etc/hosts

WP1 was configured a few months ago on the DMZ and has worked fine ever since. WPL2 is new to the DMZ (however has been available for Network A for a long time). However (not sure if this is relevant) WP1 is Alphabetically before WP2...
After the config for WP2 on the DMZ was created I ran

Code:

a2ensite name_of_site.domain.conf

Also firewall has been updated to same config as WP1 (for WP2 to work)

why would WP2 run slower?

On a client on which WP2 loads "super-slow" what happens if you put WP2's IP address in the URL instead of its hostname? Let's prove that the slowness is not a problem in resolving the name.

Also, if you ping WP2 from that client using first the hostname and second the IP address is the response the same speed-wise?

Hi,

I think I would start with some basics here assuming that the IP's are different, you could try;

You could also look at things like the network config, between the switches if they are physically different.

It would also be worth looking at the /etc/network/interfaces file on the proxy.

There are just so many possibilities here, it will have to be a process of elimination.

Regards

Gull04

I attached an image of what i am trying to do in my original post.


Anyway, using the IP from the DMZ server to the WP1 & WP2 have no difference in speed. WP1 loads fine, WP2 loads very slow

---------- Post updated at 01:31 PM ---------- Previous update was at 01:21 PM ----------

ping & traceroute blocked between networks here, sorry.

Network A these servers are all VMs and on the same subnet.

Hi,

The VM hosting WP2 would be the prime suspect then, although without being able to have a look at timings and routes that will be difficult to prove.

I think that you might have to start at a slightly higher level here;

You may have to have your network team do a traffic analysis to identify why things have gone awry if you don't have the appropriate tools available.

Regards

Gull04

I have a feeling it may be the firewall that is the issue.

every end user on Network A can access the WP2 absolutely fine, no issues in speed... so this is not the Server for the WP2 website.

in fact it is mainly used on Network A and is only now being presented to Network B.

I will ask for the firewall to be checked again...

it helps to get others to point you in directions and tests to help get a better idea, especially when you been on it a while.

cheers guys... I will report back when I have more info

It took time,

but the issue was with the firewall never had the correct info
and also on Network B the DNS was not correct.

Cheers for the help.