Yearly Archives: 2013

uTorrent & SSH Tunnel

SOCKS is built in to OpenSSH, so it’s a trivial matter to set up a local SOCKS proxy with the -D flag. For example: $ ssh -D 12345 myuser@remote_ssh_server will open up the port 12345 on your local machine as a SOCKS proxy so all your HTTP traffic can be specified to go through the… Read More »

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AAA configuration using TACACS+ (Cisco IOS and HP Procurve)

Basic configuration in IOS aaa new-model tacacs-server host 192.168.1.1 timeout 10 key sup36s3c63t tacacs-server directed-request aaa authentication login default group tacacs+ local enable aaa authentication login SSH group tacacs+ aaa authentication login CONSOLE local aaa authentication enable default group tacacs+ enable none aaa authorization exec default group tacacs+ none aaa authorization commands 15 default group… Read More »

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Munin & munin-node

The following examples use these addresses: Munin server: 192.184.94.230 (ramnode.advanxer.com) Munin node 1: 192.210.208.175 (bluevm.advanxer.com) Munin node 2: 54.254.177.162 (ec2.advanxer.com) Server side configuration /etc/munin/munin.conf htmldir /usr/share/nginx/www/munin # a simple host tree [ramnode.advanxer.com] address 127.0.0.1 use_node_name yes [bluevm.advanxer.com] address 192.210.208.175 use_node_name yes [ec2.advanxer.com] address 54.254.177.162 use_node_name yes # port 4950 Munin node configuration /etc/munin/munin-node.conf host_name vps.advanxer.com… Read More »

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TACACS+ Config

Lab environment/requirement Ubuntu/Debian server Tacacs+ software from Shruberry Cisco Catalyst switches User id: advanxer Password: helloword Enable password: ciscoenable Download and install tacacs+ wget ftp://ftp.shrubbery.net/pub/tac_plus/tacacs+-F4.0.4.27a.tar.gz Extract it tar -zxvf tacacs+-F4.0.4.27a.tar.gz Go into extracted folder cd tacacs+-F4.0.4.27a Install dependencies (if needed) apt-get install build-essential flex bison libwrap0-dev Install tacacs+ ./configure make install Check tacacs+ is installed… Read More »

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Cisco IOS DNS/DHCP overview and troubleshooting

You can learn basic configuration and troubleshooting for Cisco IOS DNS/DHCP. PDF Slides Original source: https://supportforums.cisco.com/docs/DOC-13740 http://www.cisco.com/en/US/tech/tk648/tk361/technologies_problem_troubleshooting09186a0080093fad.shtml

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