Daily Archives: April 18, 2012

How to recover a Cisco 2600 router and restore IOS

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

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

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

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

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

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

Posted in Solaris / linux, Technical | 1 Comment

To setup pptp vpn debian ipad

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

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

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

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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