Bitcoin Forum
December 12, 2017, 09:57:08 PM *
News: Latest stable version of Bitcoin Core: 0.15.1  [Torrent].
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: How safe is this Uncomplicated Firewall setup?  (Read 1428 times)
Timo Y
Legendary
*
Offline Offline

Activity: 938


bitcoin - the aerogel of money


View Profile
July 27, 2012, 09:45:07 AM
 #1

For my "current account" wallet, I use a dedicated netbook where I run nothing but the Bitcoin client.

The OS is an Ubuntu 12.04 custom install with the majority of default software packages removed. 

The ufw setup is as follows:

Code:
$ sudo ufw status verbose

Status: active
Logging: on (low)
Default: deny (incoming), deny (outgoing)
New profiles: skip


To                    Action          From
--                    -----           ----
8333/tcp              ALLOW OUT       Anywhere               
8333/tcp              ALLOW OUT       Anywhere (v6)

From time to time I run the Ubuntu updates; for this I temporarily change default outgoing to ALLOW.

My question is, is this setup reasonably safe against wallet theft by hackers or viruses, or have I missed something important?

GPG ID: FA868D77   bitcoin-otc:forever-d
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
grue
Global Moderator
Legendary
*
Offline Offline

Activity: 2044



View Profile
July 27, 2012, 01:40:56 PM
 #2

firewalls aren't going to protect you against 0day exploits, which is your biggest risk.

It is pitch black. You are likely to be eaten by a grue.

Tired of annoying signature ads? Ad block for signatures
check_status
Full Member
***
Offline Offline

Activity: 196


Web Dev, Db Admin, Computer Technician


View Profile
July 29, 2012, 12:36:20 AM
 #3

There's still plenty of room for DNS Spoofing, MITM (there are 7 types, 4 are local), browser attacks (If you surf on it.), and router compromises.
There are custom attack tools that use multiple vulnerabilities simultaneously to overwhelm IDS's and Firewalls where a certain combo allows one to get through. The double or triple combo confuses the defense system logic allowing the attacker to succeed with an exploit when using just one exploit would normally be blocked.

For Bitcoin to be a true global currency the value of BTC needs always to rise.
If BTC became the global currency & money supply = 100 Trillion then ⊅1.00 BTC = $4,761,904.76.
P2Pool Server List | How To's and Guides Mega List |  1EndfedSryGUZK9sPrdvxHntYzv2EBexGA
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!