Difference between revisions of "Netband Project - Goodies"

Revision as of 21:10, 22 April 2009

<accesscontrol>NetBand</accesscontrol> This page is part of the Netband Project

IOS Goodies

send messages to other adminsitrative users through the cli

B1rt1#send *
Enter message, end with CTRL/Z; abort with CTRL/C:
hej hej
^Z
Send message? [confirm]
B1rt1#
***
***
*** Message from tty194 to all terminals:
***
hej hej

B1rt1#
***
***
*** Message from tty194 to all terminals:
***
hej hej

disable password check on telnet sessions

line vty 0 4
 no login
line vty 5 15
 no login

log straight into privilege mode

aaa new-model
username admin privilige 15 password cisco 
!
aaa authentication login default group local
aaa authorization console
aaa authorization exec default local

tells the router to hold messages until it detects no input from the keyboard and no other output from the router.

line con 0
 logging synchronous
line aux 0
line vty 0 4
 logging synchronous
line vty 5
 logging synchronous

Linux Godies

When you look at logs and need realtime monitoring use the -f argument on tail. If you've changed something in the MRTG config file and want to know if it is correct use "tail -f /var/log/mrtg/mrtg.log" to monitor the log.

root@UbuntuBox:~# tail -f /var/log/mrtg/mrtg.log
2009-04-20 08:30:05: ERROR: Target[Router1][_IN_] 'Di $target->[14]{$mode} ' (kill): Can't call method "Di" on unblessed reference at (eval 42) line 1.
2009-04-20 08:30:05: ERROR: Target[Router][_OUT_] 'Di $target->[14]{$mode} ' (kill): Can't call method "Di" on unblessed reference at (eval 43) line 1.
2009-04-20 08:35:03: ERROR: Target[Router][_IN_] 'Di $target->[14]{$mode} ' (kill): Can't call method "Di" on unblessed reference at (eval 42) line 1.
2009-04-20 08:35:03: ERROR: Target[Router][_OUT_] 'Di $target->[14]{$mode} ' (kill): Can't call method "Di" on unblessed reference at (eval 43) line 1.

Linux network emulater
Can be used to emulate slow wan links with packet drops, delay and jitter

http://www.linuxfoundation.org/en/Net:Netem https://help.ubuntu.com/community/NetworkConnectionBridge

@@ Line 46: / Line 46: @@
 </pre>
 ==Linux Godies==
-When you look at logs and need realtime monitoring use the -f argument on tail. If you've changed something in the MRTG config file and want to know if it is correct use "tail -f /var/log/mrtg/mrtg.log" to monitor the log.
+*When you look at logs and need realtime monitoring use the -f argument on tail. If you've changed something in the MRTG config file and want to know if it is correct use "tail -f /var/log/mrtg/mrtg.log" to monitor the log.
 <pre>
 root@UbuntuBox:~# tail -f /var/log/mrtg/mrtg.log
@@ Line 54: / Line 54: @@
 -04-20 08:35:03: ERROR: Target[Router][_OUT_] 'Di $target->[14]{$mode} ' (kill): Can't call method "Di" on unblessed reference at (eval 43) line 1.
 </pre>
+*Linux network emulater
+*Can be used to emulate slow wan links with packet drops, delay and jitter
+http://www.linuxfoundation.org/en/Net:Netem
+https://help.ubuntu.com/community/NetworkConnectionBridge