ssh

ssh with keys/no passwd(A->B)

ssh-keygen -t rsa
create a directory ~/.ssh as user x on B
cat .ssh/id_rsa.pub | ssh x@B 'cat >> .ssh/authorized_keys
http://www.eng.cam.ac.uk/help/jpmg/ssh/authorized_keys_howto.html

install gnome-applet-sshmenu
list installed files: rpm -ql gnome-applet-sshmenu

wake on lan (wol) wlan -> lan

make sure your nic is able to wake up the pc: check it with the command ethtool eth0

broadcasting magic packets over wireless sometimes gives problems.
I changed the ping program so it can send a long patern(the magic packet) and gave it the short name plp (ping long patern)

how to use: plp -s 204 -p <magic packet> <ip address>
magic packet: 6xFFfollowed by 16xthe mac address (use ether-wake -bD to see an example of the magic packet)

todo: …. create magic packet from mac address

download & save the plp.ppt & rename it back to plp
plp

make sure you have an entry in your arp cache (ip-address mac) other wise it will send an arp who-has broadcast to a non responding pc (use arp -s <ip> <mac> to add one, or arp -f /etc/ethers,….)

disable pc speaker

add blacklist pcspkr to /etc/modprobe.d/blacklist.conf

suspend/hibernate fedora 11

Suppose you have an nvidia

1) download latest nvidia driver from nvidia website
2) disable nouveau

put nouveau in blacklist vi /etc/modprobe.d/blacklist-nouveau.conf

make new initrd: mkinitrd -f /boot/initrd-$(uname -r).img $(uname -r)

3) reboot

vmware can’t open machine after copy

rm /var/lib/vmware/“Virtual\ Servers\*{vmem,vmdk}.lck/*lck

juniper on fedora 11

juniper plugin on fedora11
remove openjdk,ice… plugin
download & install sun java jre. Test if java plugin is working: http://www.java.com/en/download/help/testvm.xml
check links: ln -s /usr/local/jre/plugin/…. /usr/lib/mozilla/…./plugins-wrapped (also in the ~/.mozilla/plugins ???)
install xterm

terminal settings

setterm -blength 0
xset b off

man xset
man setterm

fedora – vista dual boot: repair vista

1) boot from dvd -> repair -> command prompt: bootrec.exe /FixBoot

3) edit grub.conf with possible boot partitions

wireless broadcom bcm4306 (latitude D600)

wget http://mirror2.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2
tar -xvf broadcom-wl-4.150.10.5.tar.bz2
b43-fwcutter -w /lib/firmware wl_apsta_mimo.o

service restart NetworkManager,

configure iptables

lokkit

gnome-lokkit

rpm commands

• install:  rpm -ivh, rpm -i ftp://…,  rpm -i http://…
• uninstall: rpm -e
• upgrade: rpm -Uvh
• query all packages: rpm -qa
• package information: rpm -qi
• package file owner: rpm -qf /….
• list files in package: rpm -qpl
• verify package: rpm –verify
• check signature: rpm –checksig

vnc on fedora

netbeans: dead keys

no {},~~~\\||||###^^^^,…..
set XMODIFIERS=”

vista: Indexing Options

start->configuration->index options
service: windows search
indexing outlook 2007: tools -> options -> preferences

problems with locked files: http://ccollomb.free.fr/unlocker/

mac: share airport

-> system preferences
-> internet sharing
->

mac: connect to a network share

http://www.nzmac.com/features/how-to/connect-to-a-network-share.html

cisco 2950 uploaden config

- copy config van switch A -> pc met tftp
- op switch A: copy running-config tftp -> pc
- edit config file
- on switch B: copy xmodem runnig-config
- in hyperterminal: trasfer -> send file

manueel aanpassingen doen op switch B:
- hostname
- int vlan xxx ip address 10.10.10.10 255.255.255.0
- int ra fa0/1-45
-> duplex auto
-> speed auto

nieuwe running-config laden via http:
- conf t
- copy http://a.b.c.d/new_config running-config
- write
- reload warm

range commando’s
-interface range fastethernet0/1 – 4 , fastethernet0/10 – 15

bash shortcuts

shortcuts part 1 (cu=cursor)
1. ctrl+a=home : move your cursor to the beginning of the line
2. ctrl+e=end : move your cursor to the end of the line
3. ctrl+k : delete any characters from your cursor to the end of the line
4. ctrl+u : delete any characters from your cursor to the beginning of the line
5. ctrl+w : delete previous word
6. ctrl+t : transpose two previous characters
7. ctrl+y : yank/recover the last deletion
8. ctrl+d=del : delete one character at the cursor position
9. ctrl+h=backspace : delete one character before the cursor
10. ctrl+f=cu-ri : move forward
11. ctrl+b=cu-le : move backward
12. ctrl+r : find character sequence in history (completion mode)
13. ctrl+g : escape from completion mode
14. ctrl+v : Literal next (LNEXT)
15. ctrl+p=cu-up : browse history
16. ctrl+n=cu-do : browse history
17 ctrl+r=history reverse search

shortcuts part 2

1. esc+d : delete from the cursor position to the end of the word
1. esc+backspace : delete word left from the cursor position
2. esc+f : move forward a word
3. esc+b : move backward a word
4. esc+t : transpose two adjacent words
5. esc+U : word capital letters
6. esc+L : word small letters
7. esc+ : repeat last word of previous input
8. esc+n : repeat word n of previous input (nr can be pos or neg)
9. esc :

shortcuts part 3: VI

low wireless networkspeed

1) check if you use 802.11G (on router & client), look for older wireless cards that only understand 802.11b (bg = different ùmodulation)
2) check the channel on the router , try to use only 1,6,11 (non overlapping) 802.11
3) check for driver updates.
4) use WPA2/AES wireless security

mount LVM

- List the Logical Volume Groups
lvscan
- List the Physical Volumes
pvscan

- Rename the Logical Volume Group if nessecary
Rename the logical volume group of the external drive from VolGroupxx to VolGroupyy (or other unique name):
vgchange -ay VolGroup01

- Mount the Drive

Next, mount the data partition of the external drive:
mount (-t ext3) /dev/VolGroup01/LogVol01 /mnt/external