windowsnerd.com » networking

Untangle firewall common ports to unblock

Nerd — Wed, 16 Dec 2009 14:20:06 +0000

If you are setting up an Untangle firewall and want to use it at your house or business but might not know common ports to allow, here is a list. I have things a bit tighter at work but at the house I like to have instant messengers etc working.

Skype TCP ports 13861, 34954, 42045

Apple remote admin stuff – tcp 5354

typical email – tcp 25, 143, 465, 587, 993, 995 (use these at your own risk. Some you need for gmail etc, but if you open 25 outbound you may be spamming if a machine is owned)

web – tcp 80, 443

openvpn – tcp 1194

ssh – tcp 22

ftp -tcp 21

Instant messengers - tcp 1863, 5050, 5190, 5222, 5223

Remote desktop – do some port forwarding so it comes in on like 10020 and goes in to 3389. Dont open 3389 to the outside.

How do you find more?

Open a command prompt

type in netstat -no and hit enter

you will see a list of the open source and destination addresses. Compare this list to the auto refresh block list in your untangle firewall. Look for the PID. Compare that to a task manager PID and see what process is using it. Make sure you know what you are allowing when it is blocked.

Magicjack – Stupid infomercial but groundbreaking telecom killer

Nerd — Sat, 05 Jul 2008 13:45:56 +0000

MagicJack has this great snake oil salesman. The first minute or so I was watching the infomercial, I was laughing. Then the VOIP light went off in my head and the idea that if someone could make it brainless to install, telephones become a 0 cost ad supported service. Suck on that Comcast! This guy can give you a phone line with dial tone in all 50 states.

Even better than ATT this stupid company can get you an area code in 80% of the US. No other US telecom company can do that. Magicjack blog entries etc show that they have had trouble with navigating phone menus. Like “press 2 to speak English.” They have poor call quality sometimes but that is identical to a comcast phone for $25 a month not $20 a year.

I predict MagicJack will get bought out. Someone with a more professional name will come along. They will drive a phone line cost to 0. phones will become an ad interface. Land lines aren’t valuable anymore. Once there is a magicjack converter for wimax, cell phone companies will be next.

Someday I want to just buy an internet pipe of X diameter. Thats it. I decide what to push or pull through.