Kategoriarkiv: Networking

Lav dit eget CDN (Content Delivery Network)

Udgivet den maj 18, 2012 af mike

Hvis du har mange statiske filer som folk tit downloader kan det give mening at opbygge en speciel konstruktion til formålet kaldet et Content Delivery Network, som i princippet blot er en række servere optimeret til at levere ligepræcis det … Læs resten →

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Linux IPTables double NAT, SNAT / DNAT, portforwarding without default gateway

Udgivet den maj 14, 2011 af mike

#!/bin/bash # eth1 – inet – 195.184.117.131 # We asume that eth0 is on a private RFC1918 lan on which we are connected to as an ordinary client. # we also asume that eth1 is connected to the internet with … Læs resten →

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SSL SMTP operation

Udgivet den maj 28, 2009 af black

% perl -MMIME::Base64 -e ‘print encode_base64(“\000base\@example.net\0001234abcd”)’ AGJhc2VAZXhhbXBsZS5uZXQAMTIzNGFiY2Q= % telnet 1.2.3.4 25 220 smtp.example.net NO UCE ESMTP ehlo testing 250-smtp.example.net NO UCE 250-STARTTLS 250-PIPELINING 250 8BITMIME quit % openssl s_client -starttls smtp -crlf -connect 1.2.3.4:25 220 a.mx.jms1.net NO UCE ESMTP ehlo … Læs resten →

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HTTP 301 Redirects med php

Udgivet den august 24, 2008 af mike

For at teste hvilken type redirect en given side laver: @ telnet localhost 80 Trying 127.0.0.1… Connected to localhost. Escape character is ‘^]’. GET / HTTP/1.1 Host: lcauto.dk HTTP/1.1 302 Found Date: Sat, 23 Aug 2008 23:33:49 GMT Server: Apache/2.2.3 … Læs resten →

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Nulstil alle porte på en Cisco 3550

Udgivet den juli 2, 2008 af mike

interface FastEthernet0/1 no switchport no ip address exit interface FastEthernet0/2 no switchport no ip address exit interface FastEthernet0/3 no switchport no ip address exit interface FastEthernet0/4 no switchport no ip address exit interface FastEthernet0/5 no switchport no ip address exit … Læs resten →

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Cisco 2950 – STP With Uplinkfast, trunks and VLans

Udgivet den juli 2, 2008 af mike

no service password-encryption hostname HOSTNAME enable secret 5 $ENCRYPTED PASSWORD/ enable password UNECRYPTED PASSWORD ip subnet-zero vtp domain pre-dmz vtp mode transparent spanning-tree mode pvst no spanning-tree optimize bpdu transmission spanning-tree extend system-id spanning-tree uplinkfast no spanning-tree vlan 1 vlan … Læs resten →

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Installing an alphaweb server

Udgivet den april 18, 2008 af mike

********************* Setup etch backports: ********************* echo “deb http://www.backports.org/debian etch-backports main contrib non-free” >> /etc/apt/sources.list cat >> /etc/apt/preferences << EOF Package: * Pin: release a=etch-backports Pin-Priority: 999 EOF wget -O – http://backports.org/debian/archive.key | apt-key add – apt-get update *************************** Setup webserver, … Læs resten →

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Simple iptables-firewalling the Debian way

Udgivet den marts 16, 2008 af mike

The script is self explanatory, and if you dont understand it go read some newbie-guide to iptables, otherwise place the script in /etc/init.d name it firewall and run: update-rc.d rc.firewall defaults 19 And then you are ready to go 🙂 … Læs resten →

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Installing mailserver on Debian

Udgivet den november 27, 2007 af black

### Install packages needed: apt-get install apache2 mysql-server libapache2-mod-php5 php5-mysql postfix postfix-mysql courier-authlib-mysql courier-imap courier-pop ### Answers: Create Web Based Configuration: NO General type of configuration: Internet Site Mail name: mail02.ar.mcn.dk ### Run this to edit /etc/postfix/main.cf: postconf -e myhostname=mail02.ar.mcn.dk … Læs resten →

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Cisco 1760 Config with CyberCity G.SHDSL Config

Udgivet den oktober 25, 2007 af mike

! To Apply this config, alter the following things: ! * CyberCity DSL Password ! * Telnet Password ! * Enable password ! * Access-list for telnet access. ! ! Then paste the commands into the console terminal, ! after … Læs resten →

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