Skip to main content

How to find out if i have a firewall installed

Graphilip
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 Looking for solutions, i found out it was because of outdated openssl.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

Comments

5 comments

Date Votes
  • Infopro
    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 Looking for solutions, i found out it was because of outdated openssl.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?
    0
  • Graphilip
    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)
    0
  • Infopro
    You'd need to speak with your Hosting Provider to find out of they've got your server behind a hardware firewall or not.
    0
  • Graphilip
    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?
    0
  • dalem
    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
    0

Please sign in to leave a comment.

Didn't find what you were looking for?

New post