Why is my IMAP port not showing as open ( yet it works? )

Posted by Leo on Server Fault See other posts from Server Fault or by Leo
Published on 2011-11-26T21:35:26Z Indexed on 2011/11/27 1:53 UTC
Read the original article Hit count: 473

Filed under:

imap

|

ports

|

nmap

Ive recently setup Postfix and Dovecot IMAP on a Debian Lenny box. Sending to this domain works fine and reading the email via IMAP works fine too. I'm curious though as to why when running nmap, port 10143 is not shown as open.

nmap -sS -O 127.0.0.1

Starting Nmap 4.62 ( http://nmap.org ) at 2011-11-26 21:30 GMT
Interesting ports on localhost.localdomain (127.0.0.1):
Not shown: 1711 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
25/tcp   open  smtp
80/tcp   open  http
3306/tcp open  mysql

Am I missing something with NMAP?

Thanks

Leo

© Server Fault or respective owner

Related posts about imap

Why won't fetchmail work all of a sudden?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I ran a chmod 777 * on my home folder. (I know, I know. I'll never do it again.) Ever since then, fetchmail seems to be broken. I use it to fetch mail from an Exchange 2003 mailbox through DAVMail and OWA. The problem is that fetchmail complains about an "expunge mismatch" whenever I get a new… >>> More
Backup IMAP mail, then access via IMAP again

as seen on Super User - Search for 'Super User'
I am looking for a tool to backup an entire IMAP account and then expose that backup (read-only) via IMAP again. This would be perfect for backing up email from any provider, and allowing the backup to be accessed from any mail client even years after closing the account. I suspect this could be… >>> More
php imap get connection failed error

as seen on Stack Overflow - Search for 'Stack Overflow'
Warning: imap_open() [function.imap-open]: Couldn't open stream {imap.gmail.com:993/imap/ssl}INBOX in /home/happy/public_html/source/imap/fet_mail_from_email_add.php on line 7 can't connect: Can't connect to gmail-imap.l.google.com,993: Connection timed out my snippet is $mbox = imap_open("{imap… >>> More
wildcard ssl certificate - exchange 2010 - POP/IMAP problem

as seen on Server Fault - Search for 'Server Fault'
previously we have requested a wildcard ssl certificate from godaddy for our major domain. one of the reasons was the new established exchange server 2010. usually you require following names included in certificiate: FQDN (e.g. mail.whatever.com) Hostname (mail) Domain name (whatever.com) Autodiscover… >>> More
Backup Gmail using Mail.app and IMAP without redundancy

as seen on Super User - Search for 'Super User'
I don't care for actually using mail app, I use mostly the gmail interface and mail app just for offline, for quickly reading and eventually replying. Everything is working fine, I think I've followed every guide out there... Here's a great one. But I could find nothing about avoiding redundancy… >>> More

Related posts about ports

pecl-ssh2-0.11 Freebsd Compile error after upgrading to php 5.3.2

as seen on Server Fault - Search for 'Server Fault'
Hi I've been looking for answers for this all day and can find nothing to solve my issue. I also came across a question about this port on serverfault that I just answered and will hopefully help someone else. however my problem is this. While running "make" in /usr/ports/security/pecl-ssh2 I… >>> More
Apache: VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not sup

as seen on Server Fault - Search for 'Server Fault'
Hi, when i add the line below to /etc/apache2/apache2.conf I get the error belower when i restart apache: Include /usr/share/doc/apache2.2-common/examples/apache2/extra/httpd-vhosts.conf [Mon Jun 14 12:16:47 2010] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost … >>> More
Apache: VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not sup

as seen on Server Fault - Search for 'Server Fault'
Hi, when i add the line below to /etc/apache2/apache2.conf I get the error belower when i restart apache: Include /usr/share/doc/apache2.2-common/examples/apache2/extra/httpd-vhosts.conf [Mon Jun 14 12:16:47 2010] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost … >>> More
Apache: VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not sup

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, when i add the line below to /etc/apache2/apache2.conf I get the error belower when i restart apache: Include /usr/share/doc/apache2.2-common/examples/apache2/extra/httpd-vhosts.conf [Mon Jun 14 12:16:47 2010] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost … >>> More
How to See What Web Sites Your Computer is Secretly Connecting To

as seen on How to geek - Search for 'How to geek'
Has your internet connection become slower than it should be? There may be a chance that you have some malware, spyware, or adware that is using your internet connection in the background without your knowledge. Here’s how to see what’s going on under the hood. Secret Squirrel by akumath HTG… >>> More