Julian Revheim Askeland » Firewall http://raskeland.net In English Tue, 09 Mar 2010 08:29:43 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 Sorry, my bad http://raskeland.net/2009/09/sorry-my-bad/ http://raskeland.net/2009/09/sorry-my-bad/#comments Fri, 04 Sep 2009 08:49:13 +0000 Julian http://www.raskeland.net/?p=61 After i posted “F-Secure Client Security 9.0 BETA – File sharing error – Solution” yesterday I kept looking for a reason way this error appeared in F-Secure, It just didn’t look right for F-Secure to have such mistakes even in a BETA software.

I found a article at Microsoft: “Internet firewalls can prevent browsing and file sharing” and there i found all the ports that where used for file sharing:

  • Microsoft file sharing SMB: User Datagram Protocol (UDP) ports from 135 through 139 and Transmission Control Protocol (TCP) ports from 135 through 139.
  • Direct-hosted SMB traffic without a network basic input/output system (NetBIOS): port 445 (TCP and UPD).

And after reading that i started looking at the F-Secure Firewall services again and found two services. “SMB over TCP/IP (TCP)” and “SMB over TCP/IP (UDP)” witch in fact does the same as i did yesterday by opening port 445.

So, I’m sorry to have blamed F-Secure before checking better but after finding the “Windows file sharing and network printers” service i just didn’t think about looking for an SMB service, sorry, my bad.

On the other side, i think that thees services should have another name because a normal user probably don’t know what SMB is, but might still want to share files. So a tips to -F-Secure this time is to give this services a better name.

]]> http://raskeland.net/2009/09/sorry-my-bad/feed/ 2 F-Secure Client Security – Office firewall profile http://raskeland.net/2009/09/f-secure-client-security-office-firewall-profile/ http://raskeland.net/2009/09/f-secure-client-security-office-firewall-profile/#comments Wed, 02 Sep 2009 08:44:45 +0000 Julian http://www.raskeland.net/?p=53 As you may have noticed i have problems with windows sharing while running the new F-Secure Client Security 9.0 BETA.

I have tested with different profiles and it has not worked on any of them. But a few days ago i noticed that if i use the office firewall profile I’m not able to open for file sharing because it’s denied in a later rule by default, and that’s a rule I cannot change. So if I allow file sharing in a rule i create myself, it will just be denied by the default rule afterwords.

Shouldn’t I be able to choose for myself if I want to share my files in an office environment? I want to be able to change that rule, or even remove it…

]]> http://raskeland.net/2009/09/f-secure-client-security-office-firewall-profile/feed/ 0 F-Secure Client Security 9.0 BETA – Firewall issue http://raskeland.net/2009/08/f-secure-client-security-9-0-beta-firewall-issue/ http://raskeland.net/2009/08/f-secure-client-security-9-0-beta-firewall-issue/#comments Sun, 30 Aug 2009 08:58:35 +0000 Julian http://www.raskeland.net/?p=30 I have for the last weeks tested the F-Secure Client Security 9.0 BETA. I have only tested it on Windows 7 x64 systems but it seems to work great!

Until now i have only experienced one little problem whit the Firewall.
I was going to open for RDP (Remote desktop protocol), and Windows file sharing. Created one rule for the RDP and it worked fine, and then I created the file sharing rule and nothing happens. Waited for about 10 minutes, and still nothing. So i had to reboot my system to get the the rule to work. I guess it’s not suppose to be that way.

I have only tested this on one client yet, but i will do some more testing during the week!

Update:
Please read the post “Correction – Firewall issue“

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