Software Solutions
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* [[nagios]] | * [[nagios]] | ||
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* [[BigBrother]] and its derivates | * [[BigBrother]] and its derivates | ||
* [[munin]] | * [[munin]] | ||
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# add a default delay of 100ms | # add a default delay of 100ms | ||
tc qdisc add dev eth0 root netem delay 100ms | tc qdisc add dev eth0 root netem delay 100ms | ||
| - | |||
# random delay between 10ms and 100ms | # random delay between 10ms and 100ms | ||
tc qdisc change dev eth0 root netem delay 100ms 10ms | tc qdisc change dev eth0 root netem delay 100ms 10ms | ||
| - | |||
# duplicate 1% of the packets | # duplicate 1% of the packets | ||
tc qdisc change dev eth0 root netem duplicate 1% | tc qdisc change dev eth0 root netem duplicate 1% | ||
Latest revision as of 09:50, 2 September 2009
Contents |
Solutions in Software
Backup
monitoring
migrating servers
- rsync/tar/cp -a
AAA
Gems you might not know about
Security
schroot
Manpage: "Securely enter a chroot environment. schroot allows the user to run a command or a login shell in a chroot environment. If no command is specified, a login shell will be started in the user’s current working directory inside the chroot."
Network
netem/tc
Website: "netem provides Network Emulation functionality for testing protocols by emulating the properties of wide area networks. The current version emulates variable delay, loss, duplication and re-ordering."
examples:
# add a default delay of 100ms tc qdisc add dev eth0 root netem delay 100ms # random delay between 10ms and 100ms tc qdisc change dev eth0 root netem delay 100ms 10ms # duplicate 1% of the packets tc qdisc change dev eth0 root netem duplicate 1%
can be used as a LART.
URL: http://www.linuxfoundation.org/en/Net:Netem
X
synergy
"Share mouse, keyboard and clipboard over the network" - you only need one mouse + keyboard to control several desktops w/ displays.
Synergy is a very good alternative to x2x/x2vnc. It features Windows, Linux and MacOS clients and does a bit more than x2x or vnc. It can not only share your clipboard to all machines attached, but also disable all screensavers/locked screens at once.
