Catch up on stories from the past week (and beyond) at the Slashdot story archive

 



Forgot your password?
typodupeerror
×

Comment Re:DNS and ICMP Tunnels (Score 1) 318

This would not work. All the firewalls that I've encountered are configured to only allow UDP port 53. If you just have ssh listen on port 53 it will still be blocked because ssh uses TCP.

To do it properly, you really need to have the correct client and server that will make real DNS or ICMP packets that contain your data as a payload.

Comment DNS and ICMP Tunnels (Score 4, Insightful) 318

Why pay? Connect to their access point and tunnel all of your traffic over DNS or ICMP. The firewalls that they use rarely block ICMP and almost never block UDP port 53. All you need is to have a client installed on your machine and run a server out on the interwebs somewhere that is running the right server software and acts as a proxy. The tech to do this has been around for quite a while, and most linux distros have the clients and servers in their repositories. The main system used for DNS is called iodine and there are two different, very good ICMP tunnels that I know of. One is here and another here. If you search through your favorite linux or BSD distro's repository search for "ip over icmp" or "ip over dns" and you'll find what you need.

Comment Re:AdBlock/Ghostery/RequestPolicy = inferior (Score 1) 147

Not sure that I entirely agree. Keeping a hosts file up-to-date introduces a security vulnerability. The hosts file can do much more damage than a list kept by a browser plugin. Additionally, I'm not convinced that what you're saying is true (it could be your presentation that is poor: next time use English sentences, you will convey your point in a more clear way).

When you enter a URL in the browser, it issues a GET request, then the plugin parses the response and allows the browser to make subsequent requests depending on the list it keeps. As long as you're not keeping too large a list, it shouldn't impact the speed of your browser.

Comment Re:Ugh... (Score 1) 75

From a security and sandboxing perspective this paradigm is much more secure than running all the variety of services on one instance or server. If you use FreeBSD jails it becomes even more secure because each jail only has the resources and libraries available to run the single application that you want to run. The whole resource argument is a non-starter. You are thinking in terms of old hypervisors that don't do memory deduplication. Most all modern virtualization environments do this and allow you to run a very large number of VMs with very little cost. There is a great video from ShmooCon this year that describes this technology excellently. You should fast forward to 6:33 to skip straight to the pertinent section of the talk. Then fast forward to 24:50 to see a demonstration of this technology in action (KVM's version).

Comment Ads and Trackers? (Score 4, Interesting) 147

I haven't seen ads or trackers for a very long time. Every once in a blue moon one slips through my combination of AdBlock and Ghostery, but I always report it so they can add it to the block list. All I see is a little number representing how many cooties were blocked for the page I'm on. Hopefully everyone does something like this and the commercial internet dries up and withers away.

Comment Re:OpenBSD (Score 1) 472

Nobody is completely safe. Even OpenBSD. In light of these new Snowden docs, the following post by the OpenBSD author makes quite a lot of sense. Theo is accusing certain developers of being paid to backdoor the OpenBSD IPSEC stack dating back to 2000/2001 which coincides with the current revalations.

Theo de Raadt's post to the openbsd-tech mailing list.

Comment Re:Not much worry with a source build (Score 1) 472

I use Chrome on Kubuntu which does store its passwords in Kwallet. However, kwallet can have multiple wallets. You are not being forced to store Chrome's passwords in the same wallet that the system stores its passwords at all. The new secretservice libraries and utilities are not stable yet, but when they are, the back end storage for kwallet will be the same back end as gnome.

Slashdot Top Deals

If Machiavelli were a hacker, he'd have worked for the CSSG. -- Phil Lapsley

Working...