All Questions
21
questions
0
votes
0
answers
112
views
Why I lost my internet connection when in windscribe console I set “Firewall” option "On"?
I have installed windscribe on my kubuntu 22.04 but when I run windscribe console and set “Firewall”
option on - I lost my internet connection.
I think the reason could be that I have windscribe ...
- 135
0
votes
0
answers
154
views
Unable To Connect To Internet Sites Via Live USB - Wi-Fi Settings Are Correct
I was running my Ubuntu Live via USB for the first time. All of my Wi-Fi settings were correct and I was able to get a DHCP address on my network but I was unable to get to any Internet URL including ...
1
vote
0
answers
213
views
UFW VPN Killswitch doesn´t work, stopps all traffic?
So Nordvpn's new update basically messed up the killswitch and I wanted to set up one myself in order to maintain some basic privacy.
I followed this guide mainly: https://adamtheautomator.com/linux-...
- 11
0
votes
1
answer
567
views
I installed firewall-configuration and lost the wifi
to keep the PC safe, I installed firewall-configuration from Ubuntu software:
As soon as the installation was over, I lost the WiFi connection (and even Rstudio cannot connect with R, by the way). I ...
- 797
0
votes
1
answer
63
views
Blocked internet traffic for device seems to be leaking out to internet
I have an Ubuntu box that DHCP assigns a static IP address (Based on it's MAC address) at 192.168.2.12 with the Local gateway at 192.168.2.1, I want to block internet traffic to it and from it, but I ...
- 2,223
0
votes
1
answer
1k
views
Ubuntu Router: Can't ping between two NICs
I'm quite new to networking and I'm simply trying to set up a robust router and firewall with my barebone Ubuntu 20.04 server.
Consider the following setup of the NICs:
enp3s0:
IP: 192.168.1.23
...
0
votes
0
answers
41
views
Which system apps need internet?
I want to set up the firewall gufw to only allow a browser and only OS stuff that needs the internet (to get updates, and whatever else). It's 20.04 LTS and I'm just using it to browse the internet ...
- 1
1
vote
0
answers
56
views
Suppress all unneeded internet traffic when connecting through satellite
When using a satellite connection to connect to the internet (I'm on the Thuraya network), traffic is very expensive (around 3,50 USD per MB). Thus, I'd like to suppress all unneeded traffic, i.e. ...
- 127
1
vote
0
answers
879
views
How to control internet access (not LAN) for specific executable
what I'd like to know is a way of denying internet access for one specific executable, like in Windows Firewall, where you can select a specific .exe-File and restrict it's access to internet.
Also, ...
- 121
0
votes
0
answers
314
views
Internet Problems ( This site cant be reached )
I have a problem in connecting to some websites. For example, Google, Gmail, Yahoo websites have no problem. but I am not able to open websites like askubuntu, nvidia, facebook. Kindly please help me ...
- 1
1
vote
2
answers
1k
views
What is FirewallD?
I'm trying to activate the firewall on my wired internet connection, but it says FirewallD is not running. Is that something I can turn on through ufw? I'm running Ubuntu 16.04 LTS.
- 11
1
vote
1
answer
6k
views
Restricting Internet access of applications in Ubuntu [duplicate]
I want to block access to the Internet for all apps and process on my machine except for ones specifically allowed. I used to achieve this with Firewall when I was using Windows. I have a very tight ...
- 253
1
vote
0
answers
247
views
How to block Internet access for some devices on given hours?
I have a Ubuntu machine (15.10) running as a gateway which routes / firewalls traffic between a LAN an Internet.
I need to block Internet access during some hours for specific devices on the LAN.
...
- 1,315
8
votes
1
answer
7k
views
How to block internet access for an application
I'd search for a way to run an application prevent it from accessing internet, possibly without install a specific program to do this. Most of the answers I've found refers to THIS post, so I tried ...
- 524
4
votes
1
answer
1k
views
Could someone tell me whether my OS is communicating with the internet?
I edited iptables so that when the VPN service is disconnected, no program will access the internet.
Well, I did an experiment. I disconnected the VPN service manually and immediately did a ping by ...
- 1,917
1
vote
1
answer
696
views
Setup firewall: ask user to allow new incoming/outgoing traffic?
I'm using Ubuntu 12.10 and as I know there is already a firewall on any ubuntu system. It's ufw and because I like fancy gui stuff I can use gufw, that's very nice.
Now I would like to configure this ...
- 268
1
vote
3
answers
7k
views
Firefox cannot find website servers, what is wrong?
Recently, I tried to access the internet using Firefox. I have a good wifi signal according to the toolbar at the top, but Firefox says "Firefox can't find the server atwww.example.com." I tried ...
- 179
7
votes
3
answers
18k
views
How to disable Internet connection for a single process?
I know the PID of a specific process and I want to disable the Internet access for this process and only for this process, so other process can access Internet.
Is there any way to do it?
I ...
- 351
11
votes
2
answers
9k
views
How to disable internet for a user on a system
I know about changing owners/permissions on particular programs/files, but how can I control which users have access to the network card (NIC) or have the power to create network sockets?
- 1,155
-1
votes
1
answer
3k
views
Use uPNP to configure 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 ...
- 11
6
votes
1
answer
7k
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 ...
- 191