Server :: Run A Ftp On Default Ports With Port 10100-10199 As Passive?

Feb 19, 2010

tring to run an ftp server on default ports with port 10100-10199 as passive. Using vsftp. But the ports refuse to open what the heck am I doing wrong? see screen shot. oh using karmac, now.

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Debian Configuration :: Setup Passive Ports And Masqurade?

Aug 27, 2010

my proftpd setup will not do passive ports, reading the how-to on this page [URL] It gives the instructions on how to set up passive ports and masqurade but the example is using ipchains so before I start typing these commands in I would like to know if I need to change anything in the commands other then the ipchains command.


will this work on debian 5.05 also how do I find out if I use ip filters.

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Programming :: Specify Different Port Other Than Default 22 For One Particular Server In Hostlist

Apr 8, 2011

I have the first part of this script working, but I need help on how to specify a different port other than the default 22 for one particular server in my hostlist. First, here's my working script:


Now, the hostlist contains a few servers that all share the same password in this test so as not to complicate that portion of expect's password section. However, one of the servers within hostlist_test will need to have the ssh port defined as, for example, 5522 as I've defined the port forward in DD-WRT's NAT section and changed in the appropriate /etc/ssh/sshd_config for listening. Might anyone be able to help me include that part in my script?

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CentOS 5 Server :: Change My Ssh Port From The Default 22

Feb 9, 2010

I want to change my ssh port from the default 22 to something else. I did the following: vi /etc/ssh/sshd_config; uncommented Port 22 and changed it to the desired port number. After that I run service sshd restart for the change to take an effect. Now, when I want to login into the new port I receive this message - Network error:Unable to route to host. When I change the port back to 22, I will be able to login again.

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Fedora Networking :: FTP Server - Changing Default Port 21

Nov 25, 2010

Now that I've set up an FTP server here at home I'm thinking that it might be a good idea to change from the default Port 21 to something else. Can I use any port I desire or are there only certain ports that support this protocol?

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CentOS 5 Server :: Turn Off Default And Program Get Port 80?

Jul 17, 2010

I have a CentOS server running at [a link which has been moderator deleted] (a text-based game I'm building) which is displaying the default welcome page. I'll quote some of the things that page says:

Quote: "Apache 2 Test Page powered by CentOS This page is used to test the proper operation of the Apache HTTP server after it has been installed. If you can read this page it means that the Apache HTTP server installed at this site is working properly."

"If you are the website administrator: You may now add content to the directory /var/www/html/. Note that until you do so, people visiting your website will see this page and not your content. To prevent this page from ever being used, follow the instructions in the file /etc/httpd/conf.d/welcome.conf. You are free to use the images below on Apache and CentOS Linux powered HTTP servers.

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CentOS 5 Server :: Changing Default Mysql Port As 80 From 3306

Feb 2, 2009

I want to change my MySQL default port(3306) as 80 how can i do this on centOS 5.2? I tired to add


to /etc/my.cnf and different command in this file. But mysql didn't start. How can do this? I'll use server only as mysql and ftp server.

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Server :: Drbd Active-passive Cluster Change Primary One?

May 21, 2011

i have a two node drbd cluster, while drbd1 is primary and drbd2 is slave i should make drbd1 slave and unmount drbd partition and make make drbd2 primary and mount drbd partition to see content on drbd2is it any way to automate it so as drbd1 goes down, drbd1 make itself primary and mount the partition?

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Server :: Nagios Passive Or Remote-host-side Alert?

Jan 6, 2010

Is this possible that a process running on a remote-host only inform nagios when some thing is wrong. Rather then nagios-monitoring-server checking through NRPE every so often. Reason is I want to add too many alerts in the application. And I don't want a whole list of ok messages.

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OpenSUSE Network :: Uploading Files To Remote FTP Server Using Passive Mode With Enabled SuSeFirewall2

Feb 28, 2010

I've got problems uploading files to a remote FTP server using passive mode with enabled SuSeFirewall2 (Using 11.2)

I've disabled Firewall and everything went ok. Why firewall disables or terminates OUTGOING connections to a remote FTP?

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OpenSUSE Network :: Block All Ports But Port 80 With Iptables (DMZ)?

Jun 25, 2010

I have a Suse 10.3 router with 4 network cards. 1 is to connect to the big network and thereby also the internet, 2 are for 'client' subnets and I want to use the last one as a DMZ. In this DMZ will be a web server which has to be accessible from the other 2 subnets and from the big network. I could do it with a few simple clicks in Yast firewall, but I have some issues with this firewall and there for I want to use it as minimal as possible, using Iptables.

So now I'm struggling a bit with Iptables. Basicly what I'm looking for is how to block all ports but 80 in this last subnet with iptables.

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Hardware :: On PCI Serial Port Card I-440 Work Only Two Ports From 4?

Jan 16, 2010

Label on card: "I-440 PCI 4S1P IO Card"

# lspci -v


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Slackware :: Can't Connect To Port 6667/6668 (IRC Ports)?

Jan 19, 2011

For some reason I'm unable to connect to anything through these ports and I can't figure out why. I have to use a proxy address to access my irc channels.I've ruled out my router by disabling all router network filtering, so it must be something on this computer.

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Debian :: Two Ports Open On New Install - Can Safely Close Port 111

Jan 17, 2016

I scanned my newly installed Debian 8 and found that i have two ports open.

22 for ssh which i want
111 can i safely close port 111 and how?

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Ubuntu :: Close All Ports Except Port 80 - Secure HTML And Webmail

May 17, 2010

I downloaded IPKungFu which is supposed to do this for me, except it did not according to a penetration site. configure IPKungFu perfectly. I did look at this site. IPKungFu easy iptables based server firewall - zarzax the blog I downloaded IPKungFu which is supposed to do this for me, except it did not according to a penetration site. Help me configure IPKungFu perfectly. I did look at this site. IPKungFu easy iptables based server firewall - zarzax the blog


rv @rv-laptop:~$ sudo ipkungfu
Checking integrity: ..PASSED
Checking MD5 Hash of config files:OK


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Ubuntu Networking :: Bridging Ethernet Ports & Keeping Static IP On One Port

Mar 11, 2010

I'm currently using Ubuntu 9.1, and a motherboard which has two Ethernet ports on it.

What I would like to do is bridge these ports, so I can plug in another Ethernet cable and run it to an unmanaged switch in my room (handy for my work laptop when on-call and building other PCs, etc).

I.e. Router --> 8-Port Switch --> My PC.
Eth 0 --> static
Eth 1 --> 5-Port Switch --> DHCP

I believe this is the config to make the ports bridged:

ifconfig Eth0
ifconfig Eth1
brctl addbr Bridge0
brctl addif Bridge0 Eth0
brctl addif Bridge0 Eth1
ifconfig Bridge0 up

- How do I save this so upon reboot it sticks?

- How do I force Eth0 to remain as a static IP of

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Ubuntu Networking :: Change The Ports That Something Like Xchat Uses To Make It Use The Same Port As Firefox?

Sep 3, 2010

How do I change the ports that something like xchat uses to make it use the same port as firefox? I am currently somewhere that has all non browser ports blocked.

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Ubuntu Networking :: Cannot Access Certain Ports Via Web Browser, Outgoing Port Blocked

Aug 12, 2011

I have a vps server running certain services which can be accessed via a web browser (e.g webmin control panel), but I have recently been unable to access these services from my home machine using Firefox 5.0, running ubuntu 11.04.


I can access the server on port 80 fine, eg: [URL]

However I cannot access my webmin control panel on: [URL]

The pages takes ages to load and then times out. Same with transmission-daemon on: [URL]

Everything is set up fine on my server, the ports are open in firewall etc. and I can access these pages fine from my work computer.

This has only started happening in the last day or two and had been working fine up till then. I have not messed around at all with the firewall on my home machine. I have tried other browsers besides Firefox with same result.

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Ubuntu Networking :: What Ports Are Open By Default

Feb 4, 2010

Does Ubuntu come with a firewall preinstalled and running? I need to open port 9997 - how would I got about doing this?

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Ubuntu Servers :: 10.04 - No Open Ports By Default

Dec 15, 2010

"Ubuntu Server has no open ports by default" - [URL]. Does this mean right after a 10.04 Server Edition installation, if a user wants to start a web service e.g. a Java process to listen on say port 8080, he would have to configure the firewall first?

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Ubuntu Servers :: All Ports Filtered By Default?

May 1, 2011

I just finished setting up a Natty box to act as my home router / home web server. I installed beta2 a few days before the final was out and updated all of the packages (also tried a dist-upgrade just in case ).

I performed the following setup:

- set up the webserver and sshd
- set up dhcp server and adressing
- set up rc.local to run rc.firewall with my filtering rules
- set the router live (rebooting it)

And that was basically it. Everything worked fine, except when I tried to open any of the sites that are hosted on the webserver from the outside world. It turned out that all of the ports on the external interface were blocked.

I decided to stop my firewall rules (flushing all rules) and then scan my box from the outside - still, all ports seemed to be filtered. I then decided to reboot the machine, disabling all mention of the rc.firewall script, but the ports were still filtered!

I then disabled apparmor and made sure ufw is disabled, but the ports are still filtered for the outside world. For the internal network they are not filtered.

Is there some other mechanism besides iptables rules that filteres packets?

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Security :: Drop Inbound Traffic To Port 80 (http) From Source Ports Less Than 1024?

Feb 1, 2011

I'm simply trying to make a little restriction on www packets under two rules:

1. Allow inbound/outbound www packets (works!)

2. DROP inbound traffic to port 80 from source ports less than 1024. (DOES NOT WORK!)

Now, technically, when i use hping to test my rules, hping3 -S -p80 -s 1023 I should NOT receive any packets. However, i still receive packets, which means my rule that says less than 1024 does not work. (see below)

And this is my iptables rules in shell-script so far:



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Ubuntu Servers :: 10.04 Edition - No Open Ports By Default?

Dec 15, 2010

I've tried to set up a Hadoop cluster on a few freshly-installed 10.04 Server Edition machines and hit a problem. (I was able to set up the cluster using Desktop edition previously). The issue is that I can't connect to the service even though the Java process is running and listening on the port and there is no error in the logs. Anyway, I started to wonder if it was firewall issue so I googled it and found conflicting information.

1. "Ubuntu Server has no open ports by default" - [URL]
2. iptables shows different info. ufw is also disabled.

hadoopadmin@machine-1:~$ sudo iptables -L
[sudo] password for hadoopadmin:
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
hadoopadmin@machine-1:~$ sudo ufw status verbose
Status: inactive

I even tried to enable ufw and did "sudo ufw default allow incoming" but still no help. The only package I manually selected during installation is OpenSSH server.

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Security :: Doorways On Non-default Ports - New Trend In Black Hat SEO?

Dec 4, 2010


A year ago I blogged about how hackers managed to hijack hundreds of high-profile websites to make them promote online stores that sold pirated software at about 5-10% of a real cost. They used quite a standard scheme that involved cloaking (making spammy links visible only to search engine crawlers) and conditional redirects (visitors from search engines who clicked on specifically-crafted links on compromised sites got redirected to online stores of software pirates)

Despite of all my warnings, most of those site are still hacked and help sell pirated software and steal credit card numbers. This negligence of site/server administrators encouraged cyber criminals to step even further in abusing reputation and resources of compromised servers. This post will be about one of such steps.

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Server :: Postfix Port - Send Message Via Port 587 Not Port 25

May 2, 2010

I have a mail server i need it to send message via port 587 not port 25, i make some changes to my postfix server which i use and it is already successed making a telnet to 587 port like it :


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Ubuntu Networking :: Reset Network COnfiguration And Default Ports?

Jun 25, 2010

The other day I was using BitTornado and it was running so slow it was almost unholy. After some research I found out that if the yellow light was on it means I couldn't receive any incoming connections and had to open some ports on the firewall. That, my friends, is not the problem. I tried to manually open up the bittorrent port and did some other things that I can't quite remember but eventually I accidentally killed all bittorrent functionality on my laptop.

Is there any way I can reset my network and ports back to the default settings or am I utterly screwed? I'd really prefer not to have to reinstall my whole OS just to fix my bittorrent or worse, have to download on Vista *shudders*. I'd rather go back to my uber-slow bittorrent than none at all. I've tried everything I can think of, even the godlike might of Google couldn't get me out of this one. Now I am forced to bother you, all because I wanted to see a damn sci-fi film from Switzerland (Cargo[2009]).

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Ubuntu Servers :: Secure Fileserver Over Internet - Opening Samba Ports Make Default Particularly Vulnerable To Penetration?

May 26, 2011

I'd like to set up a fileserver for myself and a few trusted individuals. I'm computer savvy and I use various linux servers frequently for work, but this is my first time trying to setup my own. Is it possible to have a Samba server setup so it is both secure and facing the Internet? Two questions:

Will opening Samba ports make my default Ubuntu server particularly vulnerable to penetration? More than having an SSH server running? Does Samba/ can Samba be configured to encrypt traffic or is it sent plainly? If so, does Windows and Mac support this secure communication?

If not, what would you suggest? I'd like to achieve something like a network drive and at a difficulty level that my parents could use this if they really wanted to. I will be storing things like financial information and tax returns, but no weapons-grade secrets.

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Fedora Networking :: Ftp Port Open \ Didn't Add A "other Ports" Rule Or Anything As Well?

Jul 26, 2011

I set up a vnc connection to my machine the other day and while doing that checked out any open ports.To my astonishment my ftp port is open, although I double checked the firewall and there's no check in the checkbox for the ftp port. I didn't add a "other ports" rule or anything as well.So, how would I be able to fix that?

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General :: SFTP Server Port Blocked On Uni Network / Need To Change Listening Port

Oct 21, 2010

VERY new to linux, erm but I have an issue that needs solving!I recently moved to university, where their network blocks sftp port 22, this means that I cannot connect to my FTP server which is running a version of linux.Now I've got this ftp server connected to a seedbox and it was created using the following walk through..Code:I have written this guide for a friend, but I though it would be useful for others as well.

There are several guides floating around, but I found that most always cock up in some way. This one is tried and tested to work on Debian Etch (on an OVH rps, but should apply to most servers).If there is a new stable release of rtorrent/libtorrent then I will update this guide to show you how to update it (without reinstalling the whole server).

At the bottom there are also instructions to install ftp access & some network monitoring software.Basically, I would really like someone to be able to construct the commands on how to change the listen port for sftp connection on linux or add another port to the list that Linux would use so that I could put in through putty.

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Server :: If Forward A Port In Iptables, Does The Port Have To Be Open On The Firewall

Aug 5, 2009

If I forward port 80 to port 3128 for squid with an iptable rule, does port 3128 have to be open on the firewall or is this all routed behind the firewall?

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