Do I need to install a firewall, or is there already one active pre-installed?
90795
Do I need to activate the firewall? I only use Ubuntu for a home desktop use?
15910
How can I see all active connections?
78406
Blocking web sites with Windows Firewall
3160
I am under DDoS. What can I do?
55940
How to bypass the "secure connection failed" warning in Firefox 33
146375
Do I need a firewall for my desktop?
133629
block all but a few ips with firewalld
131896
Why doesn't System Monitor show activity over ethernet connections?
137431
How can we open our firewall to allow Google Analytics?
5661
on windows 7, vpn'ing to work, how to force all traffic to use VPN?
34364
How to control internet access for each program?
188
What should I check after an unauthorized access?
32237
Why I do get error 101? How is my DNS involved?
156746
Does changing default port number actually increase security?
111832
Two internet connections at once in Windows 7
134192
How to make sure I'm not using any proprietary software after installation?
41884
How are connections differentiated from behind NAT routers?