• http://www.nixtutor.com/linux/all-the-best-linux-cheat-sheets/
• http://www.selflinux.org/selflinux/
• http://debiananwenderhandbuch.de/
• http://www.tldp.org/
• http://openbook.galileocomputing.de/linux/
• http://www.linuxforen.de/forums/showthread.php?t=136651
• http://www.linuxforen.de/forums/showthread.php?t=169531
• http://www.tim-bormann.de/category/debian-linux/
• WLAN unter Linux
• Find Out Which Process Is Listening Upon a Port
• 50 Most Frequently Used UNIX / Linux Commands (With Examples)
• 50 UNIX / Linux Sysadmin Tutorials

  mount -t smbfs -o username=scott,password=tiger //skywalker/f$ /mnt/skywalker

• NAS/Windows in /etc/hosts eintragen
• oder winbind installieren und in /etc/nsswitch.conf in Zeile “hosts” wins ergänzen
• smbfs und smbclient installieren

  sudo apt-get install smbfs smbclient

• Datei mit NAS-Credentials anlegen, chmod 600, Datei:/root/.nas_credentials

  username=heinrich password=qwerty

• Mount-Points anlegen und mit Rechten ausstatten
• /etc/fstab erweitern

  //nas/Public   /mnt/nas/public     cifs        rw,credentials=/root/.nas_credentials,uid=1000,gid=100 0 0
  //nas/heinrich /mnt/nas/heinrich   cifs        rw,credentials=/root/.nas_credentials,uid=1000,gid=100 0 0

• Eigene user-id und group-id herausfinden mit id

  #!/bin/sh
  dd if=/dev/cdrom of=/u/cdimage/cdcp_iso.img bs=2048
  cdrecord -v -eject speed=8 dev=0,1,0 /u/cdimage/cdcp_iso.img

  mount -o loop mycdimage.iso /mnt/xyz

  #sudo su -
  hdparm -d1 /dev/hda
  dd if=/dev/hda1 bs=64k of=/dev/hda7

Beschreibung in c't 23/2003 Seite 134

Einstellungen in .gvimrc

set guifont=Lucida\ Console:h9
set ts=4
set lines=66 columns=130

* http://zzapper.co.uk/vimtips.html

• DuplexTumble: top binding
• DuplexNoTumble: left binding

cp abc.txt "xyz.txt.`date +%y%m%d-%H%M%S`"

snoop -d ce1 -V -o /tmp/snoop.out

Wireshark filters: http://www.thegeekstuff.com/2012/07/wireshark-filter/

tcp.dstport == 3003

• http://danielmiessler.com/study/tcpdump/

ifconfig eth0 up

find / -perm +000

ssh -L localport:desthost:destport gatewaylogin@gateway 

• http://www.schlittermann.de/doc/ssh.html
• http://www.thegeekstuff.com/2011/07/rsync-over-ssh-without-password/
• OpenSSH Config File Examples

ssh-copy-id -i ~/.ssh/id_dsa.pub user@remote-system

Dateien publizieren:

  rsync -urz -e "/bin/ssh -l sshuser" ~/web/staging rsyncuser@remotehost:/var/www/myweb/httpdocs

• http://www.thegeekstuff.com/2010/09/rsync-command-examples/

• Disabling the F10 Key (menu accelerators) in Gnome Terminal

Keyboard Shortcuts

• http://www.thegeekstuff.com/2011/07/cron-every-5-minutes/

Suche die Maven “target” folder und Subversion “.svn” überspringt

find \( \( -name target -o -name .svn \) -prune \) -or -type f -exec grep -l MY_SEARCH_PATTERN {} \;

• http://www.thegeekstuff.com/2009/03/15-practical-linux-find-command-examples/

Find files and tar them (using cpio)

cd res
find -name strings.xml | cpio -ov --format=ustar > i18n.tar

• http://www.cyberciti.biz/faq/checking-directory-size-in-linux-command/

  # don't output subdirectories and output a grand total du -csh /root/ /etc/ /home/
  

If you need to debug something under user which has /bin/false as its shell, you can do it with su - user -s /bin/sh

# mkdir /ramdata
# mount -t tmpfs -o size=16000M tmpfs /ramdata/

ts '[%Y-%m-%d %H:%M:%.S]'

• C-z stellt Job in Hintergrund
• fg holt ihn wieder her, optional mit %n
• jobs listet Jobs auf
• kill %n killt den Job

mypc$ ssh root@abc.com

root# ~^Z

mypc$ jobs

mypc$ fg %1 

• C-r recall history
• set -o vi Verhalten von vi auf der cmd-line
• Teil des Befehls und dann PgUp (funktioniert nicht überall, wie stellt man das ein?)

• http://linuxconfig.org/Bash_scripting_Tutorial
• for loops in bash
• http://docs.codehaus.org/display/ninja/Bash+Default+Values

function simple-backup() {
    filename=/tmp/backup-`date +%y%m%d-%H%M%S`.tar.gz
    echo "creating $filename"
    tar cfz ${filename} .
    echo "moving file to S:/simple-backups"
    mv ${filename} /cygdrive/s/simple-backups/
}

• fail2ban
• denyhosts
• sentrytools

Also see:

• http://www.debian-administration.org/articles/87
• http://www.debian-administration.org/articles/187
• http://www.debian-administration.org/articles/250
• http://www.debian-administration.org/articles/455

• http://linuxhelp.blogspot.com/2005/12/concise-apt-get-dpkg-primer-for-new.html
• apt-get Cheat Sheet

# enable apache web server with defaults (run-level 2,3,4,5)
update-rc.d postfix defaults

# specify priority and levels (stop with .)
update-rc.d apache2 start 20 2 3 4 5 . stop 80 0 1 6 .

# disable a service (all run-levels)
update-rc.d -f apache2 remove

Disable all mail-relating services on my server:

update-rc.d -f courier-imap remove
update-rc.d -f courier-imap-ssl remove
update-rc.d -f courier-pop-ssl remove
update-rc.d -f courier-pop remove
update-rc.d -f courier-authdaemon remove
update-rc.d -f postfix remove
update-rc.d -f saslauthd remove
update-rc.d -f spamassassin remove
update-rc.d -f policyd-weight remove
update-rc.d -f amavis remove

• 20 Linux System Monitoring Tools Every SysAdmin Should Know
• http://www.ehow.com/about_5497321_much-linux-memory-used-process.html
• http://www.linuxforums.org/articles/using-top-more-efficiently_89.html
• 10 Useful Sar (Sysstat) Examples for UNIX / Linux Performance Monitoring
• http://www.thegeekstuff.com/2011/07/iostat-vmstat-mpstat-examples/
• http://www.fromdev.com/2008/12/debugging-java-on-unixlinux-my-favorite.html