Monthly Archives: April 2012

How to recover a Cisco 2600 router and restore IOS

Posted on 18 April 2012 by pim

Boot in Rommon by interupting the boot of the router via a SEND BREAK on the Serial Console during the boot. rommon 13 > TFTP_FILE=c2600-adventerprisek9-mz.124-16.bin rommon 14 > IP_ADDRESS=10.1.1.3

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To create an etherchannel (“aggregation”) with IEEE 802.1q trunking on Solaris 10

Posted on 18 April 2012 by pim

1. Create the Etherchannel and bring it up: laks:/root # dladm show-dev nge0            link: up        speed: 100   Mbps       duplex: full rge0            link: up        speed: 100   Mbps       duplex: full rtls0           link: unknown   speed: 100   Mbps       duplex: unknown

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To configure a freeradius server for a cisco switch

Posted on 18 April 2012 by pim

0. As of recent, starting the free radius daemon on eg Debian like OS-es might provide you with hassle regarding permissions on the SSL keys. In case of startup problems, start the daemon with “-X” or run “strace -t open” … Continue reading →

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Subnetting example(s) and manual route summarization

Posted on 18 April 2012 by pim

1. A network administrator has been provided with the following Class B block of IP addresses: 172.16.0.0/16 It is his task to subnet this Classful network to have (at least) 9 subnets available and maximize the number of hosts available … Continue reading →

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To setup a Cisco router as TFTP server

Posted on 18 April 2012 by pim

On the router to be server: RouterA(config)#tftp-server flash:c2800nm-advipservicesk9-mz.124-16.bin NO / after flash: !

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To setup an Iscsi initiator on Linux

Posted on 18 April 2012 by pim

To setup an Iscsi initiator on Linux The instructions below were executed on Red Het E.L. 5.3 x86_64 0. Install scsi-target-utils This comes with the DVD: # rpm -i iscsi-initiator-utils-6.2.0.868-0.18.el5.x86_64.rpm

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To setup pptp vpn debian ipad

Posted on 18 April 2012 by pim

To setup pptp vpn debian ipad 0. Get the software: # apt-get install pptpd 1. edit /etc/pptpd.conf localip 192.168.2.250 remoteip 192.168.2.240-245,192.168.2.245

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To install zfs on snow-leopard

Posted on 18 April 2012 by pim

To install zfs on snow leopard.txt download the zfs package from: http://zfs.macosforge.org/trac/wiki/downloads OR: https://github.com/dustin/mac-zfs/downloads I used zfs-110 binaries. $ gzcat zfs-119bin.tgz |tar -xvf –

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Authenticated SMTP with Sun JES Messenger

Posted on 18 April 2012 by pim

Authenticated SMTP with Sun JES Messenger When nomadic users would like to send emails via their organization’s smtp server, a problem arises around smtp. The pop and imap protocols are well suited for remote users and can be secured by … Continue reading →

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Solaris Test LWPS Fork–bombs and Zone – Resource Control

Posted on 18 April 2012 by pim

Solaris Test LWPS Fork–bombs and Zone – Resource Control As an end-user create a number of Lightweight processess using the following script which should be located in a test-zone: #!/bin/ksh # Script test-fork-bomb.ksh maxlwps=500

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