Fix package name for grml-kerneladdons in tip for qemu

[grml-tips.git] / grml_tips

diff --git a/grml_tips b/grml_tips
index b19aea3..33ca66b 100644 (file)
--- a/grml_tips
+++ b/grml_tips
@@ -573,9 +573,9 @@ vim -c "se ff=dos|x" file                # ... and even shorter ;)
 recode ibmpc..lat1 file                  # convert using recode
 echo -e "s/\r//g" > dos2unix.sed; sed -f dos2unix.sed < dosfile > unixfile
 -- 
-Save live stream to file:
+Save live audio stream to file:
 
-% mplayer -ao pcm -aofile $FILE
+% mplayer -ao pcm:file=$FILE
 
 or
 
@@ -989,6 +989,7 @@ cp /etc/network/interfaces /mnt/test/etc/network/ # ...from the running grml sys
 umount /mnt/test && reboot    # unmount partition and reboot...
 
 See also: http://www.debian.org/releases/stable/i386/apcs04.html.en
+Avoid all of the above steps - use grml-debootstrap(8) instead!
 -- 
 Install (plain) Debian (etch release) via grml
 
@@ -1027,10 +1028,10 @@ passwd             # set password of user root
 mkdir /boot/grub   # setup grub
 cp /usr/share/doc/grub/examples/menu.lst /boot/grub
 cat >> /boot/grub/menu.lst << EOF
-title           Debian Etch, kernel 2.6.17-2-686 (on /dev/sda1)
+title           Debian Etch, kernel 2.6.18-3-686 (on /dev/sda1)
 root            (hd0,0)
-kernel          /boot/vmlinuz-2.6.17-2-686 root=/dev/sda1 ro
-initrd          /boot/initrd.img-2.6.17-2-686
+kernel          /boot/vmlinuz-2.6.18-3-686 root=/dev/sda1 ro
+initrd          /boot/initrd.img-2.6.18-3-686
 EOF
 vim /boot/grub/menu.lst               # adjust grub configuration to your needs
 cd /dev && MAKEDEV generic            # create default devices
@@ -1065,14 +1066,15 @@ timeout=1
 map=/boot/map
 vga=normal
 
-image=/boot/vmlinuz-2.6.17-grml
-        label="2.6.17-grml"
+image=/boot/vmlinuz-2.6.18-grml
+        label="2.6.18-grml"
         #append="...."
         read-only
-        initrd=/boot/initrd.img-2.6.17-grml
+        initrd=/boot/initrd.img-2.6.18-grml
 EOF
 
 See also: http://www.debian.org/releases/stable/i386/apcs04.html.en
+Avoid all of the above steps - use grml-debootstrap(8) instead!
 -- 
 Convert files from Unicode / UTF to ISO:
 
@@ -1164,7 +1166,17 @@ Check self signed certificate:
 Estable OpenSSL-connection using self-signed-certificate.pem and display certificate:
 # openssl s_client -showcerts -CAfile self-signed-certificate.pem -connect www.example.com:443
 
-Also take a look at make-ssl-cert (debconf wrapper for openssl)
+Generate ssl-certificate for use with apache2:
+
+export RANDFILE=/dev/random
+mkdir /etc/apache2/ssl/
+openssl req $@ -new -x509 -days 365 -nodes -out /etc/apache2/ssl/apache.pem -keyout /etc/apache2/ssl/apache.pem
+chmod 600 /etc/apache2/ssl/apache.pem
+
+Also take a look at make-ssl-cert (debconf wrapper for openssl):
+
+# /usr/sbin/make-ssl-cert /usr/share/ssl-cert/ssleay.cnf /etc/apache2/apache.pem
+
 and mod-ssl-makecert (utility to create SSL certificates in /etc/apache/ssl.*/).
 -- 
 Change Windows NT password(s):
@@ -1634,7 +1646,8 @@ Setup an HTTPS website:
 
 Create a certificate:
 
-# make-ssl-cert
+# mkdir /etc/apache2/ssl
+# make-ssl-cert /usr/share/ssl-cert/ssleay.cnf /etc/apache2/ssl/apache.pem
 
 Create a virtual host on port 443:
 
@@ -1650,6 +1663,10 @@ SSLCertificateFile /etc/apache2/ssl/apache.pem
 Enable listening on the HTTPS port (/etc/apache2/ports.conf):
 
 Listen 443
+
+and make sure the SSL module is used:
+
+# a2enmod ssl
 -- 
 Useful Apache / Apache2 stuff
 
@@ -1686,7 +1703,7 @@ GET http://www.google.com HTTP/1.0 [press enter twice]
 Adjust system for use of qemu with kqemu:
 
 Make sure you have all you need:
-# apt-get update ; apt-get install qemu grml-kerneladdons
+# apt-get update ; apt-get install qemu grml-kerneladdons-$KERNELVERSION
 
 Then set up kqemu:
 
@@ -1709,7 +1726,7 @@ dstat   # versatile tool for generating system resource statistics
 
 Usage examples:
 
-# mptstat -P ALL
+# mpstat -P ALL
 # iostat -x 1
 # iostat -xtc 5 3
 # vmstat 1
@@ -2020,7 +2037,7 @@ How to use APT locally
 Sometimes you have lots of packages .deb that you would like to use APT to
 install so that the dependencies would be automatically solved. Solution:
 
-mkdir ~debs
+mkdir debs
 dpkg-scanpackages debs /dev/null | gzip > debs/Packages.gz
 echo "  deb file:/root debs/" >> /etc/apt/sources.list
 dpkg-scansources debs | gzip > debs/Sources.gz
@@ -2317,4 +2334,48 @@ xm shutdown 1
 
 This HowTo is also available online at http://grml.org/xen/
 -- 
+Play tetris with zsh:
 
+autoload -U tetris
+zle -N tetris
+bindkey "^Xt" tetris
+
+Now press 'ctrl-x t'.
+-- 
+Set up a router with grml
+
+Run grml-router script:
+# grml-router
+
+Install dnsmasq if not already present:
+# apt-get update ; apt-get install dnsmasq
+
+Adjust /etc/dnsmasq.conf according to your needs:
+# cat >> /etc/dnsmasq.conf << EOF
+domain-needed
+bogus-priv
+dhcp-range=19.168.0.124,192.168.0.254,1m # dhcp range
+dhcp-option=3,192.168.0.1   # dns server
+dhcp-option=1,255.255.255.0 # netmask
+EOF
+
+Start dnsmasq finally:
+# Restart dnsmasq
+-- 
+Find out which process(es) cause the disk to spin up:
+
+# echo 1 > /proc/sys/vm/block_dump
+
+The command sets a sysctl to cause the kernel to log all disk
+writes. Please notice that there is a lot of data.
+
+See: $KERNEL-SOURCE/Documentation/laptop-mode.txt
+
+Also take a look at event-viewer(8).
+-- 
+Display stats about memory allocations performed by a program:
+
+Usage example for 'ls':
+
+% LD_PRELOAD=/lib/libmemusage.so ls > /dev/null
+--