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This shows you the differences between two versions of the page.

--- linux:debian [2006/07/17 12:02]
a A Collection of Debian Linux Howto 's added
+++ linux:debian [2010/03/04 13:49] (current)
a
@@ Line 7: / Line 7: @@
   * [[http://wiki.debian.org/SecureApt|Secure APT]]
   * [[http://openchemist.net/linux/howto.php|A Collection of Debian Linux Howto 's]]
+  * [[http://www.debian-hardened.org/Debian Hardeded]]
+  * [[http://wiki.debian.org/SELinux/Setup|SELinux Setup]]
+  * [[http://www.gentoo.org/proj/en/hardened/|Hardened Gentoo - other linux security tips]]
+== HP & Debian ==
+   * [[http://hp.com/go/debian]]
+   * [[http://wiki.debian.org/HP/ProLiant|Proliant Debian Wiki]]
+===== Network tips  =====
+==== Interface bonding ====
+**''/etc/network/interfaces''**
+   auto bond0
+   iface bond0 inet static
+           address xxx.xxx.xxx.xxx
+           netmask 255.255.255.0
+           network xxx.xxx.xxx.0
+           broadcast xxx.xxx.xxx.255
+           gateway xxx.xxx.xxx.1
+           up /sbin/ifenslave bond0 eth0 eth1
+==== bridge setup ====
+**''/etc/network/interfaces''**
+   auto br0
+   iface br0 inet static
+            address 192.168.0.100
+            netmask 255.255.255.0
+            network 192.168.0.0
+            broadcast 192.168.0.255
+            gateway 192.168.0.1
+            bridge_ports eth0 eth1
+            bridge_fd 0
+            bridge_hello 0
+            bridge_stp off
+===== Perfect Debian Server Setup =====
+==== Base instalation ====
+**Requirements**
+To install such a system you will need the following:
+    * A Debian Sarge Netinstall CD (available [[http://ftp.si.debian.org/debian-cd/3.1_r0a/i386/iso-cd/debian-31r0a-i386-netinst.iso|here]])
+    * an internet connection since I will describe a network installation in this document
+----
+   * Insert your Sarge Netinstall CD into your system and boot from it (enter ''**linux26**'' at the boot prompt to install a 2.6 kernel)
+   * install only base system
+   * for RAID see: **[[:linux:raid|Setting SWRAID]]**
+      * use lilo if plan to boot from raid devices
+      * use grub if you have hardware raid
+==== Install/Remove Some Software ====
+Now let's install some software we need later on and remove some packages that we do not need:
+   apt-get install wget bzip2 rdate nmap ssh taceroute-nanog links-ssl lynx fileutils iptaf iproute less tcpdump ntp-simple
+   apt-get remove lpr nfs-common portmap pidentd pcmcia-cs
+   update-rc.d -f exim remove
+   update-inetd --remove daytime
+   update-inetd --remove telnet
+   update-inetd --remove time
+   update-inetd --remove finger
+   update-inetd --remove talk
+   update-inetd --remove ntalk
+   update-inetd --remove ftp
+   update-inetd --remove discard
+   <- Yes
+   /etc/init.d/inetd reload
+==== Configure The Network ====
+Because the Debian Sarge installer has configured our system to get its network settings via DHCP, we have to change that now because a server should have a static IP address. Edit /etc/network/interfaces and adjust it to your needs.
+   # /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
+   # The loopback interface
+   auto lo
+   iface lo inet loopback
+   # The first network card - this entry was created during the Debian installation
+   # (network, broadcast and gateway are optional)
+   auto eth0
+   iface eth0 inet static
+          address 192.168.0.100
+          netmask 255.255.255.0
+          network 192.168.0.0
+          broadcast 192.168.0.255
+          gateway 192.168.0.1
+          up /path/to/your/firewall.sh
+         # up /sbin/ifconfig eth0 txqueuelen 1000   # 1000Mbits force
+Use {{linux:firewall.sh|this firewall.sh}} as an example.
+Edit ''/etc/resolv.conf'' and add some nameservers:
+   search server
+   nameserver xxx.xxx.xxx.xxx
+   nameserver xxx,xxx,xxx,yyy
+Edit ''/etc/hosts'' and add your new IP addresses:
+.0.0.1       localhost.localdomain   localhost       server1
+.168.0.100   server1.example.com     server1
+==== Configuration optimization ====
+''/etc/syslog.conf'' \\
+''/etc/issue'' \\
+[[http://tnt.aufbix.org/tnt/doku.php?id=dns&s=host%20conf#general_dns_linux_stuff|/etc/host.conf]]\\
+''/etc/issue.net'' \\
+''/etc/motd'' \\
+''/etc/ntp.conf'' \\
+''/etc/sysctl.conf'' - see [[:linux:sysctl|this]] \\
+''**/etc/default/rcS**''
+   # Set EDITMOTD to "no" if you don't want /etc/motd to be editted automatically
+   EDITMOTD=no
+   # Set FSCKFIX to "yes" if you want to add "-y" to the fsck at startup.
+   FSCKFIX=yes
+/etc/hosts.deny
+   ALL:ALL
+/etc/hosts.allow
+   sshd: trusted-network/netmask
+/etc/fstab
+   # /etc/fstab: static file system information.
+   #
+   # <file system> <mount point>   <type>  <options>               <dump>  <pass>
+   /dev/md1        none         swap    sw                  0       0
+   /dev/md2        /tmp           reiserfs        defaults,nodev,nosuid,noexec  0       0
+   /dev/md3        /                 ext3    errors=remount-ro       0       1
+   /dev/md4        /home        reiserfs        defaults,noatime        0       0
+   /dev/md0        /var            reiserfs        defaults,noatime        0       0
+/etc/modules.conf - (e100 extra)
+   #options e100 e100_speed_duplex=2
+   #Valid Range: 0-4 (1=10half;2=10full;3=100half;4=100full)
+   #Default Value: 0
+   #   The default value of 0 sets the adapter to auto-negotiate. Other values
+   #   set the adapter to forced speed and duplex.
+   #   Example usage: insmod e100.o e100_speed_duplex=4,4 (for two adapters)
+##
+#
+==== Some dpkg-hacks ====
+   dpkg-query -W --showformat='${Package}\n'
+   dpkg-query -W --showformat='${Installed-Size} ${Status} ${Package}\n' | sort -n
+   dpkg --get-selections | awk '{ print $1; }'| tr "\n" " "
+**Sorting debian packages installed by size**
+   dpkg-query --show --showformat='${Package;-50}\t${Installed-Size}\n'  | sort -k2 -n
+== How to disable IPv6 in debian linux ==
+/etc/modprobe.d/aliases\\
+net ipv-10 off\\
+net ipv6 off\\
+===== Tips & troubleshooting =====
+==== 'apt-get' (Debian) says "E: Dynamic MMap ran out of room" and bails out ====
+Create a file **/etc/apt/apt.conf** and put something like:
+   Apt::Cache-Limit 67108864;
+in it. If it still fails, make that number higher.
+==== apt-get (from Debian) suddenly segfaults ====
+Delete the file '**/var/cache/apt/pkgcache.bin**' and re-run '**apt-get update**'.
+==== Create a backup list of packages and resinstall ====
+   sudo dpkg --get-selections > package_list.txt
+Save the text file on a thumb drive, format the drive, reinstall Ubuntu/Debian, then to a
+   sudo dpkg --set-selections < package_list.txt
+   sudo apt-get -y update
+   sudo apt-get dselect-upgrade