a technological barrier designed to prevent unauthorized or unwanted communications between computer networks or hosts
0
votes
0answers
169 views
cannot login to apache JAMES Remote Administration Tool
Is there some reason I get denied when trying:
# telnet localhost 4555
JAMES Remote Administration Tool 2.2.0
Please enter your login and password
Login id:
root
Password:
root
Welcome root. HELP ...
0
votes
1answer
369 views
Best & The Most Secure UFW Configurations? [closed]
I've looked in these two (1 & 2) Qs&As but didn't find an accurate and simple answer...
I'm on a variant of Ubuntu 10.04 and I want to configure my firewall in a way that it couldn't be ...
3
votes
1answer
709 views
Do I need to activate the firewall? I only use Ubuntu for a home desktop use?
I am a novice at Ubuntu (12.04). I have it on my netbook which I use mainly for surfing the net, learning python and remote desktop into my work computer.
Do I need to enable a Firewall type ...
2
votes
1answer
271 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
208 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 ...
0
votes
1answer
641 views
How do I find my firewall is blocking mysql?
I'm very new to Ubuntu. I couldn't able to connect to mysql via my programming language.
I know all my property file in my code is correct. But still I couldn't able to connect to mysql. I guess my ...
0
votes
0answers
103 views
APF Firewall makes SSH hang sometimes
I noticed that when apf-firewall is turned on, then my ssh sessions are somethings hanging or closing.
It happens when:
I leave the ssh console alone for some time - Then the connection closes
I ...
0
votes
1answer
452 views
Firestarter exits after closing
I'm using Firestarter on Ubuntu 12.04.
I configured Firestarter to run even after closing in the preferences menu.
But still it exits after closing.
It doesn't minimize to system tray.
2
votes
1answer
184 views
How can I prevent applications sending data over the net without my consent?
Recently I had a couple of instances of programs sending data (copies of some of my config files) out over the net. I consider this very bad form on behalf of the writers, and I want to prevent it ...
1
vote
2answers
297 views
Need a Firewall application similar to one that ships with Fedora
I've used Ubuntu since more than a year now, as the Oneiric Ocelot has more than exceeded my expectations and provides most things out of the box. However, there is one feature that both Windows and ...
0
votes
3answers
78 views
APT downloading without my consent
I installed natty (11.04) and wanted to play a video.
Went through the process the cancelled because it was slow and files were relatively large unstable and it was late .(Internet very expensive for ...
2
votes
1answer
320 views
How do I block a protocol using iptables firewall
How to block a specific protocol using iptables firewall? For example block Yahoo messenger?
1
vote
1answer
5k views
Port seems to be open, but connection refused
I am trying to open port 3000 on Ubuntu 12.04, cause I have a web server listening there. I'm a bit out of my confort zone here, and spent many hours trying to solve the problem without success.
Port ...
4
votes
2answers
299 views
What additional security measures should I apply for Ubuntu?
So on my Windows 7 install, I've got multiple free malware/virus scanners and a firewall up. But I've heard that Ubuntu (or Linux in general) is much more secure by default.
So what additional ...
1
vote
1answer
1k views
Installed Xubuntu desktop on Ubuntu 12.04 server and now can't connect via SSH
I have a ubuntu 12.04 server that I could connect to fine using ssh over the internet. I installed the xubuntu desktop on it, didn't change any settings, then suddenly ssh stopped working.
I can ...
0
votes
1answer
322 views
Ubuntu Windows Installer - Firewall
I installed Ubuntu with the Windows installer to use it along side. I could not find anything to activate a firewall so I thought its inbuilt and running. However now I read that I have to activate it ...
1
vote
1answer
2k views
How to configure UFW to allow IP Forwarding?
I have UFW, OpenVPN and Virtualbox installed on my home server. I have a host-only network for my virtual machine guests (vboxnet0) set up with the IP range 10.0.1.0, and another IP range of 10.0.0.0 ...
2
votes
0answers
208 views
Why is SSH not accessible after installing KDE on Ubuntu Server?
I installed KDE onto my Ubuntu server, which is operating as a file server.
It installed a firewall that wasn't there previously. I can't reach any of the services I had operating on the box now, ...
2
votes
1answer
2k views
MySQL server not accessible from remote machine
I have installed MySQL server in my local Ubuntu server (11.10). I can't connect to the server from a remote machine.
When I tried:- nmap localhost
, It shows the following
PORT STATE SERVICE
...
-1
votes
1answer
650 views
Setting up port forwarding on my router to Ubuntu machine [closed]
I just loaded up a older computer of mine to run a server for a game I'm working on, (it's a template server) and I need to forward ports 3200 and 3201, so that it can be accessed both on my local ...
2
votes
1answer
8k views
Currently What is the best Firewall & Internet security for Linux Ubuntu?
Currently What is the best Firewall & Internet security for Linux Ubuntu?
Thanks for answers.
0
votes
1answer
65 views
New User to Linux in general (Setting up a hardware firewall, needs interface config and ufw config help!)
I'm very new to this new environment (coming from Windows) and I need some help setting up a hardware firewall and web server combo. I already have my website set up and I would like some guidance on ...
2
votes
1answer
4k views
How do I allow all possible IPs for Gmail servers through my ufw firewall?
I am currently using the following rule:
ufw allow out from my_local_ip to any port 587
This is a little too lax for my liking. I would like to tighten it up and restrict it to only gmail's smtp ...
6
votes
2answers
2k views
What do UFW's audit log entries mean?
I'm sometimes getting a lot of these AUDIT log entries in
...
[UFW AUDIT] IN= OUT=eth0 SRC=176.58.105.134 DST=194.238.48.2 LEN=76 TOS=0x10 PREC=0x00 TTL=64 ID=32137 DF PROTO=UDP SPT=36231 DPT=123 ...
2
votes
2answers
639 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 ...
3
votes
1answer
382 views
local development LAMP server: routing external requests through SOCKS proxy
I've got a (virtualized) local LAMP server on Xubuntu 12.04 that I am using for Drupal development. I'd like to learn how to use web 2.0 integration Drupal modules (eg. youtube, facebook, etc.) but I ...
0
votes
2answers
848 views
iptables problem
Hi guys i have the follwoing iptables file for my ubuntu 12.04 server. ITs a bit messy because i tried different ways to fix it but the problem is it doesnt allow apt commands such as apt-get to run. ...
1
vote
1answer
156 views
How do I use “ld_preload” to control what apps can and cannot connect to internet?
I'm trying out Ubuntu. Been a Mac user. I like ubuntu a lot but I find it unnerving to not have any control over what apps can & cannot connect to the internet. I was advised that "ld_preload" can ...
10
votes
7answers
2k views
Alternative to Little-Snitch app-firewall?
I'm trying out Ubuntu. Been a Mac user. I like ubuntu a lot but I'm uncomfortable not having an app-firewall that reports what connections are being made to the internet. I find it unnerving to not ...
0
votes
3answers
2k views
Is the firewall active or not?
I'm confused about the status of my firewall. Using the Ubuntu Software Center, I have installed Gufw.
Problem:
When the Firewall is locked, it looks like it's inactive. But when I unlock it, it's ...
1
vote
1answer
65 views
How to add a rule for loggin packets in ufw
I'm seeing a lot of connections with source 0.0.0.0 and destination 0.0.0.0 in conntrack. I want to log these packets which have source 0.0.0.0 and destination 0.0.0.0 so that I can digg this issue ...
3
votes
1answer
398 views
How to prevent certain applications from accessing the internet?
I want to prevent certain applications from accessing the internet. When I was using windows XP I had an application (i think it was Zone alarm) which always notified me when an application tried to ...
1
vote
1answer
558 views
How to set fail2ban with apf?
I just installed fail2ban and the apf firewall. Those 2 seems to be not working together. Fail2ban have added some ipatble rules but they are not working. When I issue "/etc/init.d/iptables status" ...
1
vote
1answer
405 views
Different responses when telnetting into mysql's port via hostname
I'm trying to connect to mysql server installed on my computer.
When I enter "telnet localhost 3306", I get some garbage characters meaning that I'm connected to the server.
But when I enter "telnet ...
-3
votes
4answers
3k views
What ports should I open for listen and/or transmit in my firewall to keep internet ok? [closed]
What are the minimum ports and services that should I allow/open for listen and/or transmit in my firewall (I am using Firestarter) to keep my internet running ok?
Some talk about what services, ...
1
vote
0answers
1k views
UFW Settings - Application Integration [closed]
I have installed the Ubuntu system, and deny both incoming and outgoing ports loosing internet access.
Now I want access only for my Firefox that I have installed separately from the Firefox website ...
2
votes
2answers
6k views
What are ICMP redirects and should they be blocked?
After enabling ufw and the Tiger security auditor, I see warnings saying:
The system accepts ICMP redirection messages
What are ICMP redirection messages? Should they be disabled for security ...
2
votes
2answers
2k views
iptables mac address filtering not work
I block every port default by ufw
and add iptables rules like this:
sudo iptables -A INPUT -p tcp --dport 1723 -m mac --mac-source 00:11:22:33:44:55 -j ACCEPT
then I list iptables INPUT rules:
...
6
votes
2answers
2k views
UFW is not logging how do I troubleshoot?
I have set logging to high.
I am not seeing any log messages.
I do see the empty ufw.log file.
No messages in dmesg
0
votes
2answers
546 views
How to make an internet server as firewall using ubuntu 11.10
i have one static broadband connection which is coming to my Ubuntu server with 2 lan cards, there are 10 more PC's to which i need to provide internet connection through Ubuntu server as well as i ...
0
votes
1answer
263 views
How to update firewall to pass NFS traffic?
I have set up the NFS Service using these instructions and it was working fine last week but today I get this error:
Root-NFS: Unable to get nfsd port number from server, using default
I ...
1
vote
1answer
259 views
How do I check the status of apf firewall?
How to check whether apf (Advanced Policy Firewall) is running after the reboot? It doesn’t have any status, so how can we know?
2
votes
1answer
223 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 ...
0
votes
1answer
686 views
Cannot ping between computers, but I can connect (only one way though)
I am new using Linux, so I would really appreciate a simple as possible answer.
I cannot ping between two computers, neither to nor from. I can ssh from one computer to another, but not the other way ...
0
votes
2answers
409 views
Firewall configuration and consequences
I'm using Ubuntu 11.10. And I want to know something about firewall in Ubuntu, because I want to know if it could be the reason why my application doesn't work properly.
Little background:
I'have ...
0
votes
2answers
3k views
Why isn't Transmission working?
I'm using the latest version of Ubuntu and Transmission.
According to Transmission, the file I am downloading has 0 peers and is idle, even though there are a few peers seeding it.
Here's a batch ...
2
votes
0answers
439 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 ...
0
votes
0answers
67 views
Should I be using a firewall in Ubuntu? [duplicate]
Possible Duplicate:
Why is the firewall disabled by default?
I installed both gufw and Firestarter but I'm hesitant to activate one of them because I don't know too much about firewalls in ...
1
vote
2answers
1k views
How Can I Use Ubuntu As Firewall Server
Can Ubuntu be configured as a firewall server , if yes how ? , if no why ?
6
votes
1answer
245 views
Securing Riak using Shorewall Firewall
I want to set up a Riak Cluster for a Web project.
However, I want to secure this cluster so that only My Web Server(s) can access Riak Cluster. Basically, I will have one or more Web Servers and 4 ...
