Port 21 will not open. status is closed. forward port 21 to new domains.

Posted by Bob Swaggerty on Ask Ubuntu See other posts from Ask Ubuntu or by Bob Swaggerty
Published on 2012-06-19T09:12:32Z Indexed on 2012/06/19 9:24 UTC
Read the original article Hit count: 288

Filed under:

server

|

ftp

I am having a problem opening port 21 on my Linux Ubuntu server. No matter what i do, i can not get my status to change from closed to open. Here is a recent iptables command i used and the result

iptables -A INPUT -p tcp -m tcp --dport 21 -j ACCEPT

nmap -p21-22,25,80,443 CCR1

Starting Nmap 4.53 ( http://insecure.org ) at 2012-06-19 03:13 CDT Interesting ports on CCR1.chennaichristianradio.com (5.10.69.98): PORT STATE SERVICE 21/tcp closed ftp 22/tcp open ssh 25/tcp closed smtp 80/tcp open http 443/tcp closed https

I also used commands from the advise from this forum http://www.cyberciti.biz/faq/iptables-open-ftp-port-21/

I need to open this for FTP access to the server, and ultimately I need to forward port 21 to 2 domains i am setting up. Thank you for any assistance you can provide -Bob Swaggerty

© Ask Ubuntu or respective owner

Related posts about server

SQL SERVER – Server Side Paging in SQL Server 2011 Performance Comparison

as seen on SQL Authority - Search for 'SQL Authority'
Earlier, I have written about SQL SERVER – Server Side Paging in SQL Server 2011 – A Better Alternative. I got many emails asking for performance analysis of paging. Here is the quick analysis of it. The real challenge of paging is all the unnecessary IO reads from the database. Network traffic was… >>> More
Should I switch my server to Ubuntu Server from Windows Server 2003

as seen on Server Fault - Search for 'Server Fault'
I have a server thats primarily used for SRCDS, I host a few Team Fortress 2 servers on it and I would much prefer a ssh-like (more so the no-gui part) for something like this, mostly because I can't navigate with my phone on VNC very well and also because there really is no need for a gui in this… >>> More
Windows web server and SQL Server on same dedicated server

as seen on Server Fault - Search for 'Server Fault'
I'm currently trying to decide on the best approach to handle hosting a few moderate traffic websites for production e-commerce and online applications. We'd like to move to a dedicated server and are looking at this as the most likely machine: Quad Core Intel Core2Quad Q9550 Processor, 2.83 Ghz… >>> More
Windows 7 Desktop/Start Menu Redirection: Server O/S: Windows Server 2003 And Server 2008

as seen on Super User - Search for 'Super User'
Hi, I am new here so I am might be asking a question which has already been answered [however I can't see it in the suggested answers above] I manage a network which is split into a parent domain and a child domain. Recently I have been looking at when to migrate to Windows 7. The child domain… >>> More
Windows 7 Desktop/Start Menu Redirection: Server O/S: Windows Server 2003 And Server 2008

as seen on Server Fault - Search for 'Server Fault'
Hi, I am new here so I am might be asking a question which has already been answered [however I can't see it in the suggested answers above] I manage a network which is split into a parent domain and a child domain. Recently I have been looking at when to migrate to Windows 7. The child domain… >>> More

Related posts about ftp

sudo apt-get update problem

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a problem with sudo apt-get update that I can't seem to fix and It's causing problems with alot of installations I want to do. I run Ubuntu 12.04. Ign http://ftp.availo.se precise InRelease Ign http://ftp.availo.se precise-updates InRelease Ign http://ftp.availo… >>> More
Why does DEP kill IE when accessing Microsoft FTP?

as seen on Super User - Search for 'Super User'
I start up IE (9.0.8112.16421) with about:blank and I go to ftp://ftp.microsoft.com/ I press Alt, click View and then Open FTP Site in Windows Explorer. At this point IE stops responding and eventually crashes (though the window is still active, sometimes) and I get the usual Windows dialog box saying… >>> More
Shrinking TCP Window Size to 0 on Cisco ASA

as seen on Server Fault - Search for 'Server Fault'
Having an issue with any large file transfer that crosses our Cisco ASA unit come to an eventual pause. Setup Test1: Server A, FileZilla Client <- 1GBPS - Cisco ASA <- 1 GBPS - Server B, FileZilla Server TCP Window size on large transfers will drop to 0 after around 30 seconds of a large… >>> More
Shrinking Windows Size to 0 on Cisco ASA

as seen on Server Fault - Search for 'Server Fault'
Having an issue with any large file transfer that crosses our Cisco ASA unit come to an eventual pause. Setup Test1: Server A, FileZilla Client <- 1GBPS - Cisco ASA <- 1 GBPS - Server B, FileZilla Server TCP Window size on large transfers will drop to 0 after around 30 seconds of a large… >>> More
Weird FTP issue between Unity Express and Windows Server 2008 FTP

as seen on Server Fault - Search for 'Server Fault'
My VOIP specialist complained about not being able to run backups of the Unity Express onto our FTP server (Microsoft FTP on Server 2008). I did a packet trace and observed some weird behavior that I think is even kind of funny in a way. The Unity FTP client is able to initiate both control and data… >>> More