Blocking Facebook in a system
78406
Blocking web sites with Windows Firewall
86619
How do I hide nodes that shouldn't be directly accessed from users and search engines?
63117
Internet addicted, need software to control my usage and block access
153807
How do I stop friends from getting notifications about what I do on Facebook?
133629
block all but a few ips with firewalld
55282
Block a command from sudo user
14011
Block network access of a process?
41966
Can I use Facebook's fb:friend-selector in an iframe?
7781
Hardware permissions in browsers
58351
Blocking popups and ads
140934
How to restrict some websites in Ubuntu 14.04
38514
How can I block app and game invitations once and for all in Facebook?
34185
Preventing other users from viewing my files
103351
How to stop the Facebook app from updating itself automatically?
24190
Block specific URL on web browsers
152317
Block local (unix) users from sending mail
29288
Blocking programs from reading outside their allocated RAM