Solved

Ports question

Posted on 2009-07-11
2
196 Views
Last Modified: 2012-05-07
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?
0
Comment
Question by:abrodski
2 Comments
 
LVL 6

Accepted Solution

by:
microbolt earned 500 total points
ID: 24833295
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
 
LVL 12

Expert Comment

by:Steve
ID: 24833315
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

Featured Post

Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I've been an avid user and supporter of Malwarebytes Premium Version 2.x for years. It's an excellent product that runs alongside just about any Anti-Virus application without issues. It seems to have an uncanny ability to pick up many things that A…
Most of the applications these days are on Cloud. Cloud is ubiquitous with many service providers in the market. Since it has many benefits such as cost reduction, software updates, remote access, disaster recovery and much more.
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

24 Experts available now in Live!

Get 1:1 Help Now