Fifth post - Tue Sep 28 19:03:45 CEST 2010

Create RAID1 (sw) in FreeBSD

• Do some sysctl magic first, (to create raid on running systems..)
• [root@prison /home/max]# sysctl kern.geom.debugflags=16
• [root@prison /home/max]# gmirror label -v -b round-robin gm0 /dev/da0
• The device name depends on the type of your hdd, my disk is a virtual disk.
• Change your fstab values to something like this:
• [root@prison /home/max]# cat /etc/fstab
• # Device Mountpoint FStype Options Dump Pass#
• /dev/mirror/gm0s1b none swap sw 0 0
• /dev/mirror/gm0s1a / ufs rw 1 1
• /dev/mirror/gm0s1g /jail ufs rw 2 2
• /dev/mirror/gm0s1e /tmp ufs rw 2 2
• /dev/mirror/gm0s1f /usr ufs rw 2 2
• /dev/mirror/gm0s1d /var ufs rw 2 2
• /dev/acd0 /cdrom cd9660 ro,noauto 0 0
• Put this in your /boot/loader.conf
• geom_mirror_load="YES"
• [root@prison /home/max]# reboot
• [root@prison /home/max]# gmirror insert gm0 /dev/da1
• [root@prison /home/max]# gmirror status

Fourth post - Sat Jul 17 17:09:03 CEST 2010

Creating jails in FreeBSD. Jail != chroot.

[root@prison /home/max]# uname -a

FreeBSD prison.endofinternet.hu 8.0-RELEASE FreeBSD 8.0-RELEASE #1: Fri May 21 10:13:32 CEST 2010 max@prison.endofinternet.hu:/usr/obj/usr/src/sys/MAX i386

• [root@prison /home/max]# cd /usr/share/examples/cvsup/
• [root@prison /usr/share/examples/cvsup]# cp standard-supfile /root/
• [root@prison /usr/share/examples/cvsup]# cd /root/
• [root@prison /root]# csup standard-supfile
• [root@prison /root]# cd /usr/src
• [root@prison /usr/src]# make -j 4 buildworld
• [root@prison /]# cd /
• [root@prison /]# mkdir /jail
• [root@prison /]# make installworld /jail
• [root@prison /]# make distribution /jail
• [root@prison /]# mount -t devfs devfs /jail/dev
• [root@prison /]# mcedit /etc/rc.conf
• jail_enable="YES"
• jail_list="myjail"
• ifconfig_em0_alias0="192.168.1.15 netmask 255.255.255.0"
• jail_test_rootdir="/jail"
• jail_test_hostname="myjail.example.org"
• jail_test_ip="192.168.1.15"
• jail_test_devfs_enable="NO"
• [root@prison /]# /etc/rc.d/jail start myjail
• [root@prison /]# /etc/rc.d/jail stop myjail
• [root@prison /]# jls
• JID IP Address Hostname Path
• 1 192.168.1.15 myjail.example.org /jail
• [root@prison /]# jexec JID csh
• myjail#

You can download two scripts to easily create and delete jails. Use them with care. download

Third post - Mon Jul 12 21:03:31 CEST 2010

Kernel compiling in linux; the old fashioned way:

• apt-get install linux-source-`uname -r`
• cd linux-source-`uname -r`
• make clean && make mrproper
• make menuconfig
• make
• make modules_install
• Copy arch/i386/boot/bzImage to /boot/vmlinuz
• Copy System.map to /boot/System.map
• Record the changes in the bootloaders config
• /sbin/lilo - in the case of lilo
• /sbin/update-grub - in the case of grub

Second post - Mon Jul 12 10:13:10 CEST 2010

###Use it in your 0wn responsibility.###

Stress test on a mail server:

for f in `seq 1 2000`; do echo $f; mail herecomes@yourmail.tld -s "gimmeshell" < aaaa.txt; done

First post - Mon Jul 12 09:30:43 CEST 2010

Installing tor, on ubuntu latest (whatitsname);

• echo "deb http://deb.torproject.org/torproject.org experimental-lucid main" >> /etc/apt/source.list
• sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 886DDD89
• sudo apt-get update
• sudo apt-get install tor vidalia privoxy
• Say no to vidalias shit
• sudo echo "forward-socks5 / localhost:9050 ." >> /etc/privoxy/config
• firefox add-on "torbutton"
• sudo /etc/init.d/tor restart
• sudo /etc/init.d/privoxy restart