a technological barrier designed to prevent unauthorized or unwanted communications between computer networks or hosts

learn more… | top users | synonyms

0
votes
0answers
16 views

ufw on ubuntu doesn't work, how to deactivate plesk firewall?

Since I'm a totally newbie to server stuff but I needed to set up a vServer, I let install Ubuntu 14.04 AND Parallels Plesk on it. Now, I think it would have been better to install Ubuntu without ...
0
votes
1answer
54 views

No UFW logs at syslog

I'm using here the UFW as a basic protection. When I'm using the wi-fi from the college I get some UFW block (which is normal, because the firewall is ON). But strangely, I'm not getting any UFW logs ...
0
votes
0answers
17 views

GUI Firewall status display

I'm looking for a panel item or screenlet or something to display the status of my firewall. /usr/bin/firewall-applet appears to be the right thing and it is already in "Startup Applications" ...but I ...
0
votes
0answers
19 views

iptables: write UDPv4: Operation not permitted (code=1)

I am trying to set up a stateful firewall using iptables. It is for use on my desktop machine. Below are the contents of my firewall script: #!/bin/bash iptables-save > ...
0
votes
1answer
21 views

Configure UFW to allow only established and related conections (on IPv4)

I want to configure ufw to deny everything except the related and established connections. On iptables I usually did : -P INPUT DROP -P FORWARD DROP -P OUTPUT ACCEPT -A INPUT -m state ...
-11
votes
2answers
420 views

I think my PC is being hacked. What should I do? [on hold]

I'm afraid I'm being hacked: My Ubuntu is receiving inbound traffic while my PC is disconnected from Ethernet and WIFI, so my question is, how am I receiving inbound traffic? I even have a firewall ...
1
vote
0answers
12 views

Ubuntu as a bandwidth throttling box on windows network

I need to test the performance of some applications over different capacity connections (broadband, EFM, LAN extension etc). How would i configure an Ubuntu server to sit between the main network ...
1
vote
0answers
20 views

Transparent proxy listening on sub-interfaces

I have iptables and squid on the same box. HTTP traffic doesn't seem to be going through the transparent proxy when I change my rules on the filter table. What is the best point to filter http ...
0
votes
0answers
11 views

OpenVPN disables DNS due to firewall

I'm trying to use an OpenVPN service with Network Manager. When I'm on wireless and activate the VPN, it works flawlessly, but when I'm on a wired connection, I have no Internet access. Through trial ...
0
votes
1answer
47 views

IP Tables allow HTTP and HTTPS

I am setting up a basic Firewall rules for my Laptop but I cant seem to get HTTP and HTTPS, thus using of the Webbrowser to work. My current rules are like this # 1. Delete all existing rules ...
0
votes
0answers
6 views

Subdomains Stopped Working after APF Firewall Install

I've just installed APF Firewall to my Ubuntu 12.04 server. Everything went fine and www.threecreative.co.uk is displaying okay, but none of my subdomains appear to be working. Any thoughts? For now, ...
0
votes
0answers
37 views

What is Network-manager trying to do with rdisc?

I have quite strict firewall setup using (g)ufw, allowing only some known to be useful outgoing traffic and denying the rest. I have noticed these recurring messages in syslog, and I'm wondering what ...
-2
votes
1answer
86 views

I Had a Backdoor Mal Ware on W7. Will it Pass on to Ubuntu? [duplicate]

October 15, 2014, I got hit with a team of revenge hackers. They are working for my ex-father-in-law. He has been proxy stalking me since 2004 but since that has no effect on me anymore, he decided to ...
0
votes
1answer
24 views

UFW wont delete rule

I was testing something and added a rule to my firewall to allow port 9000. in retrospect, I should have just disabled it temporarily. anyhow, I went to remove the rule and it wont let me, it says ...
1
vote
1answer
24 views

Adding firewall rule makes multiple entries

I am trying to add a rule to my Ubuntu 14 iptables to allow NTP (123) though using the command for allowing Incoming Traffic on Specific Ports Basic iptables How to? Here is my command: sudo ...
0
votes
0answers
46 views

remote CORBA lookup (firewall, port, telnet)

I'm trying to do a CORBA lookup on a LAN from one pc to another. How do I troubleshoot the connection? On the server running glassfish: thufir@doge:~$ thufir@doge:~$ ...
1
vote
1answer
68 views

UFW - How to make it easier and what are stealth ports can UFW have these? [closed]

Let me show u what I jusat wasted 2 hours doing: To Action From -- ------ ---- 22 REJECT Anywhere 23/tcp ...
0
votes
0answers
52 views

error: Idle Subprocess didn't make a connection. Either Idle can't start a subprocess or personal firewall software is blocking the connection

When i run idle it returns the above stated error. It happened after I installed python 3.4. both 2.7 and 3.4 are giving this error.
0
votes
1answer
127 views

Adobe on Ubuntu 14.10

I want to install Adobe Master Collection CS6 on Ubuntu. I've installed Wine. ( the newest version. What I have allready done: sudo add-apt-repository ppa:ubuntu-wine/ppa sudo apt-get update sudo ...
0
votes
0answers
26 views

Iptables: some ports are closed despite being open by my iptables; can it be something else?

Beginner question. I set up the following iptables rules: #!/bin/sh # Réinitialise les règles sudo iptables -t filter -F sudo iptables -t filter -X # Bloque tout le trafic sudo iptables -t ...
2
votes
1answer
162 views

ERROR: problem running ufw-init

I tried setting up ufw on my remote Ubuntu 14.04 server so i installed it and allowed ssh with the command sudo ufw allow ssh after that I tried to enable ufw but I get the following error: ...
1
vote
0answers
34 views

How to know the all minimum privileges that software needs?

I am using a VPS as a public proxy, and I have begun to realize that I must make my VPS more secure as I have seen in Securing Public Shadowsocks Server. Shadowsocks is a fast tunnel proxy that helps ...
1
vote
3answers
137 views

Ubuntu / Apache2: I cannot open port 443 [duplicate]

I am trying to install a SSL certificat on my Ubuntu 14 server (using apache 2). For some reason the port 443 appears to be closed I installed and enable ssl /etc/apache2/ports.conf is as ...
0
votes
0answers
40 views

Firewall Config to get access to ports via eth0

My headless ubuntu Server has an OpenVPN client that connects to a gateway provided by PIA. I gathered some settings provided here to basically setup kill switch I have a domain that redirects to ...
0
votes
1answer
36 views

FTP and WWW services don't acknowledge connections

I have Lubuntu 14.04 LTS with vsftpd and the lamp stack (apache2, etc.) installed. Everything works fine on the LAN. Externally, the services don't acknowledge connection attempts. I can see packets ...
0
votes
0answers
18 views

VSFTPD setup not working

Good day I think I've been trying to tackle this issue for over 2 months now (with breaks of course) Here's the thing, I've set up the FTP server, it appears to be running (I can use Filezilla, ...
0
votes
1answer
39 views

Linux Firewall ala Outpost

Does linux (Ubuntu) have GUI firewall like Outpost. I need it to look out what apps are generate in/oun bound traffic.
0
votes
1answer
69 views

How can I allow ap-hotspot in ufw Ubuntu 14.04?

When ufw is enable android stuck in obtaining ip address and cannot connect to wifi. I try sudo ufw allow dhclient and sudo ufw allow dnsmasq bot both had ERROR: Could not find a profile matching ...
0
votes
0answers
31 views

I don't have a port allowed in UFW but still able to access server CP at it

Default of firewall (UFW) is to deny all that isn't allowed well 8083 isn't allowed but i'm still able to access the control panel with https://serverip:8083 Status: active To ...
0
votes
1answer
48 views

NFS Client Ports

So I've been trying to get my head around how an NFS client figures out which ports to use, or how to set them. I enabled logging (In iptables on the nfs client) for traffic between the nfs client ...
2
votes
1answer
62 views

loading “explicit” iptables rules on boot or interface up

I'like to load iptables rules on boot or interface going up on Ubuntu. Made a search on StackExchange and other places and looks like the most commonly agreed approach is either use ...
0
votes
1answer
38 views

Ubuntu Server Firewall

First of all I am new to Ubuntu server. I am still trying to understand and learning about how does firewall. I want my firewall like if you fail 3 times it will time out. Is there any body could be ...
0
votes
0answers
102 views

Cannot access apache server from LAN

I set up a virtual host for my web app: <VirtualHost *:80> ServerName myapp.localhost.com DocumentRoot "/home/user/projects/myapp/public" <Directory ...
0
votes
1answer
63 views

Does Ubuntu come with a firewall? [duplicate]

I'm new to ubuntu, does it come with a firewall installed or will I have to install one, if so which one is best.
0
votes
0answers
108 views

Firewall is blocking NSF requests from/to random UDP ports

I really hope someone can stop me from pulling my hair out! Normally, I can find the answer t what I'm after with a few simple searches, but I have worked on this off and on for weeks now and am ...
1
vote
0answers
19 views

Firewal for Ubuntu 14.04.1 [duplicate]

Is there a firewall for Ubuntu 14.04.1 that asks for every program that wants to enter or exit?
1
vote
1answer
480 views

Can't connect to PPTP VPN with ufw enabled on Ubuntu 14.04 with kernel 3.18

Suddenly VPN disconnected and can't reconnect no longer on kernel 3.18.1, so I try to install kernel 3.18.2 but my problem still exist. But I can connect to VPN with 3.14 kernel easily. The output of ...
0
votes
0answers
97 views

NFS+ufw+Autofs not working

Setup: Client server running Ubuntu 14.04 connecting to another Ubuntu Server 14.04 on NFSv4 on a local LAN. I have the firewall turned on, with routing rules to allow 192.168.42.0/24 (from/to any). ...
0
votes
0answers
21 views

No default-config with latest version of Shorewall

I'm following the guide here to setup a mail server. The first step is to configure a Shorewall firewall, which includes this step: sudo cp /usr/share/doc/shorewall/default-config/interfaces ...
0
votes
2answers
2k views

xbmc / kodi what ports to open on firewall so I can see files via upnp

I'm running xbmc / kodi 14.0 on my ubuntu 14.04 machine and I'm trying to view / watch my files located on my Kodi ubuntu machine from my nexus 7 tablet. I'm using bubbleupnp onmy tablet which can ...
0
votes
2answers
125 views

OpenVPN: Allow access only for local connections (via OpenVPN)

I was recently assigned a task to do set up a secure development environment. I am thinking of doing the following: Use OpenVPN to connect to the server. Use firewall rules to block all incoming ...
1
vote
0answers
41 views

Is this ufw configuration correct?

I have to link my openstack private cloud on a cloud management platform online. The cloud location is on my private ip (192.168.0.9) , i can't use that ip since the platform need a public ip so i ...
1
vote
1answer
620 views

How can I open port 80?

I'm new in Ubuntu, and I'm trying to open port 80. I have already set my router in order to do so, and I also set ufw. Status: active To Action From [ 1] 22/tcp ...
1
vote
1answer
75 views

How to block anything but internet(firefox) from UFW?

I want to use this flash drive only for secure access, to use my banking account and this kinds of stuffs. Which rules should I use? I'm very newbie on ubuntu, and I need your help. This flash drive ...
0
votes
1answer
62 views

How to connect remotely to WD Book Live Duo using nfs?

Connection in local network works perfect. I use nfs://192.168.0.10/nfs to connect locally. If I connect from internet I use static IP: nfs://xxx.xxx.xxx.xxx/nfs In this case it doesn't work and ...
1
vote
1answer
146 views

Forwarding ports with iptables not working?

I have an ubuntu server (14.04.1) which is asking as a router for my network. It has an internet facing interface, eth0, and a second interface, eth1, for connecting to my 10.0.0.0 network. I am ...
0
votes
1answer
37 views

How to perform detail packet capture on Ubuntu firewall?

I've routed internet traffic of my other systems on this ubuntu linux system where I have configured packet forwarding. but still I am unable to get internet on other systems. Hence I want to ...
0
votes
0answers
37 views

Allowing Longview in UFW firewall; how do these iptable rules translate to UFW-commands?

Linode has some documentation on allowing its product "longview" to go through the firewall. It offers two commands for iptables: iptables -I INPUT -s longview.linode.com -j ACCEPT iptables -I OUTPUT ...
1
vote
1answer
36 views

How do I use Juju local with a firewall?

While using ufw (Uncomplicated FireWall) and I noticed that the local juju machines were stuck in a pending state. $ juju status environment: local machines: "0": agent-state: started ...
1
vote
1answer
101 views

dport is not working on iptables command

In terminal I type : iptables -A INPUT --dport 443 -j DROP And it tells me : iptables v1.4.21: unknown option "--dport" what is wrong with --dport?