--
Save live audio stream to file:
-% mplayer -ao pcm:file=$FILE
+% mplayer -ao pcm:file=$FILE $URL
+--
+Save live stream to file:
+
+% mplayer -dumpfile $FILE -dumpstream $STREAM
or
-% mencoder mms://file.wmv -o $FILE -ovc copy -oac copy
+% mencoder mms://$URL -o $FILE -ovc copy -oac copy
or
Develop, test and use exploit code with the Metasploit Framework:
cd /tmp
-wget http://framework-mirrors.metasploit.com/msf/downloader/framework-3.0.tar.gz
-unp framework-3.0.tar.gz
-cd framework-3.0
+wget http://spool.metasploit.com/releases/framework-3.2.tar.gz
+unp framework-3.2.tar.gz
+cd framework-3.2
./msfcli
--
Useful documentation:
--
Write a Microsoft compatible boot record (MBR) using ms-sys
-Write a Windows 2000/XP/2003 MBR to device:
+Write a Windows 2000/XP/2003 MBR to a device:
# ms-sys -m /dev/ice
+
+Notice: grab ms-sys from http://ms-sys.sourceforge.net/ - demo:
+
+ wget http://surfnet.dl.sourceforge.net/sourceforge/ms-sys/ms-sys-2.1.3.tgz
+ unp ms-sys-2.1.3.tgz
+ cd ms-sys-2.1.3
+ make
+ ./bin/ms-sys ...
--
Use a Vodafone 3G Datacard (UMTS) with Linux:
Bus 004 Device 008: ID 1199:6813 Sierra Wireless, Inc.
# modprobe usbserial vendor=0x1199 product=0x6813
+
+To get a list of available providers execute:
+
+# gcom -s -d /dev/ttyUSB0 /usr/share/doc/gcom/examples/operator
--
hdparm - get/set hard disk parameters
Set up a CGI server on your webserver:
% cp hgwebdir.cgi ~/public_html/hg/index.cgi
% $EDITOR ~/public_html/hg/index.cgi # adjust the defaults
-
-Mercurial repositories of grml can be found at http://hg.grml.org/
--
Download binary codecs for mplayer:
--
Debugging SSL communications:
-% openssl s_client -connect server.adress:993
+% openssl s_client -connect server.adress:993 > output_file
+% openssl x509 -noout -text -in output_file
or
# shadowconfig on
--
-Set up an IPv6 tunneln on grml:
+Set up an IPv6 tunnel on grml:
# ipv6-tunnel start
--
2. Configure dns2tcpd on host.example.com.:
# cat /etc/dns2tcpd.conf
-listen = 192.168.1.1 #the ip dnstun should listen on
+listen = 192.168.1.1 #the ip dns2tcpd should listen on
port = 53 #" port " " " "
user = nobody
chroot = /tmp
Available connection(s) :
ssh
# dns2tcpc -r ssh -l 2222 -z dnstun.example.com 172.16.42.1 &
-Listenning on port : 2222
+Listening on port : 2222
# ssh localhost -p 2222
user@host.example.com:~#
Listenning on port : 2222
# ssh localhost -p 2222
user@host.example.com:~#
+
+Notice: using 'ssh -D 8080 ..' you will get a socks5-proxy listening on
+localhost:8080 which you can use to tunnel everything through your "dns-uplink".
+--
+Configure a MadWifi device for adhoc mode:
+
+Disable the autocreation of athX devices:
+# echo "options ath_pci autocreate=none" > /etc/modprobe.d/madwifi
+
+Remove the autocreated device for now:
+# wlanconfig ath0 destroy
+
+Configuration in /etc/network/interfaces:
+
+iface ath0 inet static
+ madwifi-base wifi0
+ madwifi-mode adhoc
+ ...
+
+Hints:
+ - Do not use interface names without ending 0 (otherwise startup fails).
+ - Only chooss unique names for interfaces.
+--
+Find dangling symlinks using zsh:
+
+% ls **/*(-@)
+--
+Use approx with runit supervision
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Install the packages:
+# apt-get install approx runit
+
+Add user approxlog for the logging daemon:
+# adduser --system --home /nonexistent --no-create-home approxlog
+
+Create config directory:
+# mkdir /etc/sv/approx
+
+Use /var/run/sv.approx as supervise directory:
+# ln -s /var/run/sv.approx /etc/sv/approx/supervise
+
+# cat > /etc/sv/approx/run << EOF
+#!/bin/sh
+echo 'approx starting'
+exec approx -f 2>&1
+EOF
+
+You normally do not need a logging service for approx because it logs
+to syslog too. So just for completion:
+# mkdir -p /etc/sv/approx/log
+# ln -s /var/run/sv.approx.log /etc/sv/approx/log/supervise
+# cat > /etc/sv/approx/log/run << EOF
+#!/bin/sh
+set -e
+LOG="/var/log/approx"
+test -d "$LOG" || mkdir -p -m2750 "$LOG" && chown approxlog:adm "$LOG"
+exec chpst -uapproxlog svlogd -tt -v "$LOG"
+EOF
+
+Now activate the new approx service (will be started within 5s):
+# ln -s /etc/sv/approx/ /var/service/
+
+Make approx managed via runit available via init-script interface:
+# dpkg-divert --local --rename /etc/init.d/approx
+# ln -s /usr/bin/sv /etc/init.d/approx
+--
+Remote-reboot a grml system using SysRQ via /proc (execute as root):
+
+eject &>/dev/null
+umount -l /cdrom
+eject /dev/cdrom
+echo b > /proc/sysrq-trigger
+--
+Show what happens on /dev/sda0:
+
+# mount the debugfs to relay kernel info to userspace
+mount -t debugfs none /sys/kernel/debug
+
+# is a convenient wrapper arround blktrace and blkparse
+btrace /dev/sda0
+--
+Convert Flash to Avi:
+
+% ffmpeg -i input.flv output.avi
+--
+Usage example for cryptsetup / -luks encrypted partition on LVM:
+
+volume group name: x61
+logical volume name: home
+
+echo "grml-crypt_home /dev/mapper/x61-home none luks" >> /etc/crypttab
+Start cryptdisks
+mount /dev/mapper/grml-crypt_home /mnt/test
+--
+fdisk/parted/... complains with something like
+'unable to open /dev/sda - unrecognised disk label'?!
+
+See http://grml.org/faq/#fdisk =>
+
+* use /sbin/fdisk.distrib from util-linux
+* switch to sfdisk, cfdisk,...
+* use parted's mklabel command (but please read the
+ parted manual before executing this command)
+--
+dmraid - support for SW-RAID / FakeRAID controllers
+like Highpoint HPT and Promise FastTrack
+
+Activate all software RAID sets discovered:
+# dmraid -ay
+
+Deactivates all active software RAID sets:
+# dmraid -an
+
+Discover all software RAID devices supported on the system:
+# dmraid -r
+--
+Extract winmail.dat:
+
+List content:
+% ytnef winmail.dat
+
+Extract files to current directory:
+% ytnef -f . winmail.dat
+--
+Approx - Debian package proxy/cacher howto
+
+% apt-get install approx
+% echo 'debian http://ftp.de.debian.org/debian' >>/etc/approx/approx.conf
+% Restart approx
+
+Add your new approx to sources.list
+
+eg.
+deb http://localhost:9999/debian unstable main contrib non-free
+
+use approx in grml-debootstrap like:
+% grml-debootstrap -r lenny -t /dev/sda1 -m http://127.0.0.1:9999/debian
+--
+Simple webserver with python:
+
+% python -m SimpleHTTPServer
+--
+Upgrade only packages from the grml-stable Debian repository:
+
+echo 'deb http://deb.grml.org/ grml-stable main' > /etc/apt/grml-stable.list
+apt-get -o Dir::Etc::SourceList=/etc/apt/grml-stable.list update
+apt-get upgrade
--
projects / grml-tips.git / blobdiff