0
votes
0answers
10 views

Open ports for Age of empires in ubuntu router using iptables

The purpose of this question is to learn how to correctly use iptables. As I am currently living in the dormitories in the University and I am using a small netbook as a router to provide wifi in my ...
1
vote
1answer
21 views

Open ports in Ubuntu 13.10 server

Im setting up a realtime gameserver fps-game, and then i need to configure ports. Just to mention, i will setup multiple servers for this game on the same ip address, which means i must open multiple ...
0
votes
1answer
1k views

How to configure ufw-firewall for OpenVPN

I am running a VPN via IPredator on Ubuntu 12.04 Desktop, which works perfectly, when ufw is disabled. When I enable ufw, I logically cannot establish a connection. IPredator states that I have to ...
1
vote
1answer
1k views

Samba server cannot be access across the internet

I have a computer at my house running Ubuntu Server 12.04 that is mapped to an external ip address. The server is running a Samba server with one share. Here is the configuration file: ... ...
1
vote
0answers
50 views

My new computer is blocking access to my webserver when in use

I have been running a web server for a while. It is hosted using lamp on a computer that I have running Ubuntu and has worked fine until recently. I got a computer that runs Windows 8 to use as my ...
0
votes
0answers
372 views

nc -v -w 1 111.111.111.111 -z 22 returns port 22 (tcp) timed out: Operation now in progress

Encountering a strange problem on my Ubuntu machine, trying connecting to 111.111.111.111 (example ip) via SSH fails. When trying to connect from other win machine its works. I don't have a ...
1
vote
1answer
189 views

Restrict access to ubuntu server by computer specific information (NOT by IP, preferably not MAC either)?

How would one go about restricting access to a Linux (Ubuntu) server such that only a selected group of computers could connect -- from anywhere? Something like CPU serial number, hard drive serial ...
1
vote
0answers
171 views

How to access Ubuntu local web server from a different apartment

I have set up an Ubuntu Apache web server with a four years old laptop. And my web application needs to be used from a different apartment, from my ground floor shop. Actually, I'm an intermediate web ...
1
vote
1answer
195 views

ICMP firewall policy for standard ubuntu desktop

For a standard desktop computer running Ubuntu 12.04 behind a NAT router, what ICMP packets should one accept in the firewall, say iptables? It seems there is often conflicting advice; some say block ...
1
vote
0answers
229 views

I need some help proof reading my IPtables rules, my rules seem to work but I cannot be sure

Like the title says, I need some help proof reading my iptable rules, my rules seem to work but I cannot be sure. My set up is as follows: ISP ---> cable modem ---> Ethernet switch ---> ...
1
vote
0answers
122 views

Change UDP port with iptables for VPN clients

What I want to do is say that for all UDP connections on interface ppp0 that have a destination port of 53, change that destination port to 1053. I am attempting to change the destination port of UDP ...
1
vote
2answers
2k views

UFW is active but not enabled why?

I was trying to setup a firewall in my Ubuntu 12.04 machine. After some struggling I got the following. Isn't this sounds a bit odd? thomas@thomas-K40IJ:~$ sudo ufw status verbose Status: active ...
1
vote
1answer
48 views

Delete a previously added rule in ufw

I created a firewall rule for an application and put into /etc/ufw/applications.d, added that rule with command sudo ufw allow MyApp but now I cannot delete it. When I do sudo ufw delete MyApp ...
1
vote
1answer
91 views

Configure application integration with ufw firewall

I've read the ubuntu developer docs regarding the ufw here, but couldn't find what I was looking for. It allows me to set rules for controlling in/out traffic based on source IP or port numbers, but ...
1
vote
1answer
57 views

Can't access service from external IPs

I have amazon EC2 instance. It has wowza server. All inbound connections in Amazon Security group for ports 1024-65535 are allowed. Yesterday Wowza stopped to response to connections from external ...
-1
votes
1answer
45 views

How to know which firewall is used? [closed]

System is ubuntu. gufw was not installed and after I installed it then shows firewall is disabled. But firewall IS definitely there.
2
votes
1answer
635 views

PureFTPd is using ports above 50000 even with PassivePortRange specified

I have installed the pure-ftpd package with PureFTP 1.0.24 on Ubuntu 10.04 using apt-get. Even though, this is the default port range, I've added the file /etc/pure-ftpd/conf/PassivePortRange ...
0
votes
1answer
203 views

Using my previous desktop computer as custom ubuntu router, will throughput be high?

I'm going to be redoing my home network soon and am thinking of using a dedicated ubuntu machine to use as the router/firewall as well as being a web server, nas (media file server), dns, wifi, and ...
0
votes
1answer
472 views

How to connect to VPN through firewall

Our admins had blocked all outgoing ports except few like 80, 443, 110 etc. I want to use some software that utilizes other ports. So I decided to make a VPN connection to my dedicated server. So we ...
1
vote
1answer
910 views

How do you run a server with chrooted Ubuntu on the HP TouchPad?

The problem: servers appear to be broken inside my Ubuntu chroot. No matter what kind of server I try to run, they all seem unresponsive (VLC server won't respond to client, mkRemote doesn't move the ...
1
vote
1answer
3k views

Ubuntu 11.10 firewall/gateway - no client internet access

I have read many other posts but cannot figure this out. eth0 is my external connected to a Comcast modem. The server has internet access with no issues. eth1 is internal and running DHCP for the ...
3
votes
2answers
743 views

ISP blocks the use of ssh?

I fail to use ssh connecting to my remote machine, the detail situation is as following: The remote machine is behind a firewall, but can be connected using ssh with port 45992. I used to connect to ...
5
votes
1answer
486 views

Rackspace Firewall/Gateway Setup

I have rackspace account and wish to have this sort of setup: Firewall/Gateway eth0 - Public IP (56.X.X.X) eth1 - Private IP (10.X.X.X) Ubuntu 10.10. Accepts connections from the internet and ...
1
vote
0answers
241 views

Can ipmasq and ufw be used together?

If both ufw and ipmasq manipulate iptables, can I use ipmasq for a quick easy setup and then use ufw afterwards to add security or will the two just trample all over the iptables "stuff"? I'm playing ...
2
votes
5answers
606 views

Easiest way to restrict IP access per user on ubuntu

I installed Ubuntu 10.10 on an old laptop for my daughter and want to be able to restrict which web sites she can access. I would like to have a white list of addresses she can access. Can anyone ...
1
vote
3answers
681 views

What is the default configuration of the firewall in Ubuntu Desktop Edition?

Is it safe to connect a computer running a freshly installed ubuntu desktop edition directly to the internet? Or do I need to actively configure a firewall before connecting it?
0
votes
3answers
605 views

Stealth Ports even while communicating?

I was using a port probing site/program called ShieldsUp! to scan my ports. It reported back that all of my ports were "stealth", and in their words Your system has achieved a perfect "TruStealth" ...
0
votes
1answer
644 views

Ubuntu 9.04, Firestarter complaints even behind the NAT router

I'm behind a router. In router config, I blocked: all (inbound and outbound) UDP inbound ICMP Local iptables are configures with Firestarter wizard: block all incoming connections allow all ...
0
votes
2answers
591 views

Ubuntu Linux UFW Firewall, Local Intranet Access

At home, I have Ubuntu server with the UFW firewall. What command do I type to turn on local intranet access to my web server, but keep the outside world out from my DSL modem?
3
votes
4answers
2k views

Is there an interactive firewall for outbound traffic on Ubuntu?

I wish to prevent some programs from "phoning home", and to allow other programs to access only specific web servers. Is there any way to interactively allow or decline outbound communication from ...
2
votes
2answers
459 views

iptables in ubuntu

i want to stop iptables firewall in ubuntu. how can i do that???
0
votes
1answer
114 views

In Ubuntu, MoBlock makes it take a while to actually start using internet

When connecting to wireless internet in Ubuntu (tested with two different networks), I connect nearly instantly. However, to actually load a page, I need to wait a few minutes, at which point I can ...
1
vote
1answer
629 views

Looking for an Ubuntu firewall script that will autoblock ips who scan ports

When someone tries to a blacklisted port, I'd like that IP address to be blocked at the firewall, for everything. Even port 80. Essentially I have a webserver, and see folks walking through ports to ...
2
votes
4answers
5k views

UFW as an active service on Ubuntu

Every time I restart my computer, and check the status of the UFW firewall (sudo ufw status), it is disabled, even if I then enable and restart it. I tried putting sudo ufw enable as one of the ...
-1
votes
3answers
2k views

Best firewall for Ubuntu [closed]

I currently have ufw and Firestarter installed on my Ubuntu Desktop 9.10 Which one should I stick with?
0
votes
2answers
857 views

How do I know which firewall is running on Ubuntu 9.10?

I've always used ufw by default, even though I also had installed Firestarter After upgrading from Ubuntu 9.04 to 9.10, by way of Update Manager, I've found ufw disabled (when I look at gufw). How ...
0
votes
2answers
971 views

Can't connect to Ubuntu 9.04 server

I have installed Ubuntu 9.04 and am having a problem that I can connect from the server to the outside world but cannot connect to the server. I checked all of the different firewall systems ...
2
votes
5answers
917 views

ports I should block

I recently set up an Ubuntu Server at home, and the first thing I did was place the UFW firewall at full power. Bad move. I could not even "rlogin" to it. I just disabled the firewall, and would ...