Ports question

Hello!
I want to double check something...If I have a CLOSED port 113...would it mean that noone can connect to me using that port even if they try?If so-then I have nothing to worry about,right?
I run a web and mail server on my PC...Is there any NEED for port 113 NOT being stealth?
And should I stealth port 113 or just leave it closed?
abrodskiAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

microboltCommented:
You can safely ignore it showing as closed.

Port 113 is often left visible by firewalls since 113 is the IDENT port.

IDENT is used when you connect to mail servers, or to IRC servers, to find out "who" is using the service. With IDENT filtered, your ISP mail server (unlikely) or IRC server (likely) may refuse your request or take a long time to respond as it waits for a closed/open response.

It is possible to remove IDENTD as showing up as a port by reconfiguring your firewall to over-ride the default rules. As above, if IDENTD is filtered in this way, IRC and mail servers may not work properly.

You can also decide that IDENTD is safe, since just having it visible does not mean there is anything that can be exploited on your side, and live with the less than "perfect" results.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
SteveNetwork ManagerCommented:
to check which ports you have open on your machine use GRC's port checking application :

https://www.grc.com/x/ne.dll?bh0bkyd2

it will test the common ports and report what is open and what isnt..

but you are correct.. 113 is NOT required for mail..

0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Security

From novice to tech pro — start learning today.