Tag Archives: iptables

Proxmox and using NAT with a Virtual Machine

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So I finally decided to make the jump to virtualization. Sure the performance is 1-3% slower then running on raw hardware, but the features gained from this way outweigh the cons. Now I can do backups on the fly, snapshots, quickly move resources around machines, and its all free thanks to Proxmox! Proxmox is a Linux Debian based distro that utilizes a custom kernel with support for OpenVZ and KVM. I’l go more into depth on Proxmox later, but for now here is my situation.

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iptables and Passv FTP

Having trouble with getting FTP to work on a server with iptables? Is your server stalling out when trying to enter passv FTP mode? Well this here is the quick fix for that. Its one of those little things thats nice to keep documented.

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Charter IPv6 6rd and Debian Linux

If you are like me, you always want the latest technology. IPv6 is the next BIG step up for the internet. It is a replacement protocol for the current IPv4 addressing system that is currently close to depletion.

What does this mean? Well with IPv4 the max amount of addresses possible is 4,294,967,296. Problem is they have all been handed out to ISP’s and companies. This is where IPv6 comes in. the IPv4 format is xxx.xxx.xxx.xxx, where xxx = 0,9.

Well, with IPv6 the address format is xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx where xxxx= 0-9 and a-f. This means there are 340,282,366,920,938,463,463,374,607,431,770,000,000 possible IPv6 addresses! With ipv6, address depletion will be a thing of the past.

So to stay with the game, I decided to deploy IPv6 on my servers. The only issue with it though is that my ISP seems to only offer it through a tunnel, or a IPv6 6rd tunnel to be exact. So after spending awhile with trial and error, here is how I access charters IPv6 network.

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