Tagged Questions
0
votes
0answers
30 views
How can I open ports on ubuntu server?
Hello I am running my server and since the ip is not static (my ISP won't give me one because I need to be a commercial customer) I have to use a service like DynDNS but the site is only accessible in ...
-1
votes
0answers
21 views
How does a firewall protect an Ubuntu server? [duplicate]
Since a potential attacker will exploit the services that are already open to public by firewall rules, how will a firewall protect my server from attackers?
0
votes
2answers
100 views
Forward [open] Ports 7777; 2106
Hi i am new to Ubuntu (12.10) x64
Trying to forward ports for gameserver on my pc (Lineage II)
Ports are opened in UFW
Ports are opened in my Router
Even if i disable UFW others still cant login to ...
0
votes
1answer
71 views
Want some advanced configuration with ufw
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 ...
0
votes
1answer
48 views
block outgoing internet calls from inside a container
This question is not similar to my earlier post. This is pretty simple I think, I just don't know enough about networking and the ubuntu firewall.
I followed this article and setup a linux container ...
4
votes
1answer
92 views
blocking all outgoing ports and its consequences
Is this the right way to block all outgoing ports? : ufw default deny outgoing
But what are the consequences of doing this on amazon ec2?
I'm running possibly unsafe perl scripts on my instance and ...
0
votes
0answers
153 views
isc-dhcp not starting
I am currently trying to build a dhcp and firewall server for my home.
I followed the instructions posted on the Ubuntu Forums about setting up such a server.
As far as I can tell, I don't have any ...
0
votes
0answers
646 views
UFW port forwarding
I use UFW and here is my setup:
eth0 is configured as a bridge interface (br0):
inet adr:10.0.4.10 Bcast:10.0.4.255 Mask:255.255.255.0
eth2 is connected to a private network:
inet ...
1
vote
0answers
188 views
Firewall stopped and disabled on system startup ERROR: problem running ufw-init
I am trying to set a VPN server on my PC (Ubuntu). I am following a tutorial , http://cviorel.easyblog.ro/2009/02/09/how-to-set-up-a-vpn-server-on-ubuntu/.
I made changes in various files including ...
2
votes
1answer
266 views
Linux Firewall NAT Port Forwarding Issues
At my home I have a Linux server (it's only job is NAT, DHCP, and DNS) with Ubuntu 10.10 Server 64-bit.
I have webmin installed on the server too, but I do know my way around a command line quite ...
1
vote
1answer
196 views
How do I set up user level restrictions on a gateway?
I am aware that Ubuntu Server can be used as a gateway to allow Internet connection to a LAN.
Then we use IP tables or other firewall settings to restrict (for example), certain websites from being ...
2
votes
2answers
617 views
How do I set up a linux proxy for my mac
As my title suggest, I would like to set up a proxy in linux. The client that I'm using is a mac osx lion. I think I understand the theory but I keep hitting roadblocks.
I started using set proxy ...
2
votes
1answer
216 views
Interactive Firewall
I have Ubuntu Server 10.04 serving as router/firewall with iptables. Also have number of client computers in LAN. So far so good.
Now what I need is some sort of interactive firewall software on ...
2
votes
0answers
423 views
UFW give errors and won't auto start at boot [closed]
I just tried to enable ufw on my server, it gave me this error :
ERROR: problem running ufw-init
When I tried the second time, it worked.
When I tried to set the default rule "sudo ufw default ...
1
vote
2answers
987 views
How Can I Use Ubuntu As Firewall Server
Can Ubuntu be configured as a firewall server , if yes how ? , if no why ?
2
votes
1answer
233 views
Shorewall is breaking packets/sessions when connecting out to internet
I am happy to forward any further data if required like firewall rules etc.
Would appreciate if someone can skim through my config and see if there are any glaring errors.
Problem:
Everything working ...
3
votes
2answers
213 views
Is portfowarding to my localhost on my personal Ubuntu computer secure?
After installing Lamp on my personally Ubuntu computer, I am running a application that requires to connect to the web and send SMTP mail; for example paypal needs a www address to notify successful ...
0
votes
2answers
6k views
How do I see which ports are open?
I am running a web server on a machine with Ubuntu 11.
Everything is accessible from the local network, but not from outside.
What can I do to check to make sure the appropriate ports are open?
I am ...
4
votes
2answers
5k views
How can I make a specific set of iptables rules permanent?
Is there a "best practice" or standard to make a few iptables rules permanent? I mean: automatically applied upon a system reboot?
I am using a VPS with Ubuntu Server 10.04 LTS (Lucid Lynx).
Thank ...
1
vote
2answers
187 views
How to debug why server is blocking outsite requests
I install ufw, gufw & firestarter yesterday, but uninstalled them all today. Now, I find that I cannot access the server from outsite. When I could before. How can I debug whats blocking these?
1
vote
1answer
2k views
How to open ports for outside traffic? [closed]
I recently installed Ubuntu Server on an old machine, to set up a website with family photos etc. It is connected to the Internet via my home router (WRT160Nv2). I set the connection up with a static ...
5
votes
3answers
9k views
How to enable ufw firewall to allow icmp response?
I have a series of Ubuntu 10.04 servers and each one has ufw firewall enabled. I have allowed port 22 (for SSH) and 80 (if it's a webserver). My question is that I am trying to enable icmp echo ...
1
vote
1answer
646 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?
