DATAPUISTOKEMISTI

I have one faulty non-RAID disk on server which I can't replace right now so I wanted to see if I could mask problems by manually triggering bad sector reallocation.

Sonera recently started offering 6rd tunnels to their customers in Finland. Based on this Comcast example it was easy to get Sonera 6rd up with Cisco 892 running IOS 15.5(1)T.

To prefer IPv4 (A) addresses over IPv6 (AAAA) on CentOS 6 you need to add new file named /etc/gai.conf with following content. Last line is what controls if IPv4 or IPv6 should be tried first.

I had unfortunate opportunity to play with RedHat / Fedora / CentOS distribution today. I have to say that as much as I hate Ubuntu, CentOS is even worse than it was few years ago when CentOS5 was still current. And now we're ignoring RHEL7 / CentOS7 where headless server installer requires GUI that's optimized for touch screen and tries to imitate Ipad. Recommended solution? Use VNC to connect installer. Aargh! I should probably have Ipad to run that VNC client - for improved user experience you know.

For 32-bit source to 64-bit see my older post . Old install was using software RAID-1, but did not have LVM. Small 200MB /boot partition, 8GB swap and rest as one root partition. We're redoing it completely so what it used to be doesn't really matter. All existing data on root will be lost.

# dnsmasq --version Dnsmasq version 2.68 Copyright (c) 2000-2013 Simon Kelley Compile time options: IPv6 GNU-getopt DBus i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack ipset auth # md5sum dnsmasq* 8a704b6aa977df9485b3faf940cc5e35 dnsmasq_2.68-1_all.deb 60bafb9b863671bb02595505a447270c dnsmasq-base_2.68-1_amd64.deb There was odd " [icmp6 sum ok] ICMP6, destination unreachable, unreachable port " going out from my server every time DNS reply was received. Turns out it was because dnsmasq IPv6 support is buggy .

Headless Ubuntu 14.01 LTS server with full disk encryption, remote unlock over SSH, software RAID, LVM and support for over 2TB disks with EFI and BIOS MBR boot. That's what this post is about. Oh, and pics are at the end.