How to find out if i have a firewall installed

Graphilip

Member
Mar 30, 2014
6
0
1
cPanel Access Level
Root Administrator
Hello guys,

ok, i know this question sounds noobie-ish but this is what i would like to know.

Here is the thing.. I own an unmanaged VPS (which means no tech support for me) and since a few days i had some issues with my website. Looking for solutions, i found out it was because of outdated openssl. I tried to upgrade but no luck. Looking for solutions again, found out it was a DNS problem, due (at least some one with knoledge said) and i quote

"That looks like you have a firewall in front of the box that is artificially capping the size of UDP DNS responses. Got a Cisco firewall? If so then it needs to be told to allow packets > 512 bytes through, for example, form my old ASA 5505 I had"

The thing is as far as i know i dont have any firewall installed and i get no support from my provider so its on me to deal with this.

I have CENTOS 6.7 x86_64 xenpv – uvps WHM 11.52.2 (build 1)

If anyone have any advice it would be very much appreciated

Thank you in advance
 

Infopro

Well-Known Member
May 20, 2003
17,112
514
613
Pennsylvania
cPanel Access Level
Root Administrator
Twitter
since a few days i had some issues with my website. Looking for solutions, i found out it was because of outdated openssl. I tried to upgrade but no luck. Looking for solutions again, found out it was a DNS problem
OpenSSL is provided by your operating system. You can check your domain for dns issues with a site like, intodns.com for example,

What is the actual problem you're trying to resolve?
 

Graphilip

Member
Mar 30, 2014
6
0
1
cPanel Access Level
Root Administrator
OpenSSL is provided by your operating system. You can check your domain for dns issues with a site like, intodns.com for example,

What is the actual problem you're trying to resolve?
Thank you for your reply, yes i know it is provided but... i cannot install anything, all i get is Couldn't resolve host 'mirrorlist.centos.org' errors.

Maybe you understand more from this post (i apologise in advance if external links are a problem)
 

Graphilip

Member
Mar 30, 2014
6
0
1
cPanel Access Level
Root Administrator
Did it right now. Unfortunately it is how it is:

"...when it comes to unmanaged VPS plans, we are unable to troubleshoot issues due to lack access to the server.
If you are finding difficult to manage the server I highly recommend you to consider a managed plan"

And that was that... The thing that bothers me is that everyone i talked to and let them take a look, told me everything seems ok on my end and most likely is on the proviers end.

So im guessing there is no way to bypass this somehow?
 

dalem

Well-Known Member
PartnerNOC
Oct 24, 2003
2,980
156
368
SLC
cPanel Access Level
DataCenter Provider
If your provider has a hardware firewall in front of your server only they would know that and only they can make adjustments.
Its pretty uncommon that they would have a firewall for an unmanaged VPS
 
  • Like
Reactions: Infopro