Kategoriarkiv: Networking

Configuring cisco catalyst / router

Udgivet den oktober 12, 2007 af Brian Lund Klint

# Cisco configuration: # Indendted commands are short forms of normal commands # connect to the catalyst telnet 192.168.200.250 # or connect console cable and fire up hyperterminal bps: 9600 Databit: 8 Parity: none Stop Bit: 1 Flow control: none … Læs resten →

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Simple tunneling across weird networks

Udgivet den oktober 2, 2007 af mike

web01:~# ssh zennet.dk -p 2222 -L 8080:192.168.1.252:80 -g -f -N root@zennet.dk’s password: web01:~# -f and -N make the process fork into background once loaded -L 8080:192.168.1.252:80 , means that local port 8080 should be tunneled to remote ip 192.168.1.252 port … Læs resten →

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Cisco Portforwarding (nat)

Udgivet den september 27, 2007 af mike

enable conf t ip nat inside source static tcp 192.168.1.254 22 10.1.0.128 22 Sends incomming connection on ip 10.1.0.128(the router) port 22 go to 192.168.1.254(the desired server to receive the connection) port 22

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Installing Nagios 2 on Debian 4

Udgivet den september 27, 2007 af mike

# apt-get install nagios2 # htpasswd -c /etc/nagios2/htpasswd.users mike New password: Re-type new password: Adding password for user mike

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Cisco 1760 config: NAT from 10mbit wan interface to 100mbit lan interface with DHCP Server

Udgivet den september 26, 2007 af mike

Using 1334 out of 29688 bytes ! ! Last configuration change at 08:57:51 UTC Sat Mar 4 2006 ! NVRAM config last updated at 09:00:05 UTC Sat Mar 4 2006 ! version 12.2 service timestamps debug datetime msec service timestamps … Læs resten →

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Cisco 1760 DHCP Server (Untested)

Udgivet den september 17, 2007 af mike

conf t service dhcp ip dhcp pool 192.168.1.0/24 network 192.168.1.0 255.255.255.0 default-router 192.168.1.1 dns-server 192.168.1.5 192.168.1.6 exit ip dhcp excluded-address 192.168.1.1 192.168.1.199 ip dhcp excluded-address 192.168.1.241 192.168.1.255 ^Z

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IOS Firewall

Udgivet den september 17, 2007 af mike

http://articles.techrepublic.com.com/5100-1035-1040244.html

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Setting up NAT on Cisco 1760

Udgivet den september 16, 2007 af mike

Using 1011 out of 29688 bytes ! ! Last configuration change at 17:30:36 UTC Fri Feb 24 2006 ! NVRAM config last updated at 17:32:38 UTC Fri Feb 24 2006 ! version 12.2 service config service timestamps debug datetime msec … Læs resten →

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Gmail and Hotmail consider mails as spam, solution here.

Udgivet den juli 30, 2007 af zephid

Tags: Sender-ID, SPF, DKIM, DK DKIM / DK: This only applies if using a combination of Postfix and Amavisd-new. http://www.ijs.si/software/amavisd/amavisd-new-docs.html#dkim Sender-ID / SPF: http://www.openspf.org/ http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/default.aspx http://www.microsoft.com/senderid

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CIDR Notation

Udgivet den juli 23, 2007 af black

CIDR uses variable bit length host masks. To get the network address of an IP address, AND it with the hostmask. 00001010.00001010.00000001.00101100 10.10.1.44 & 11111111.11111111.11111111.11100000 255.255.255.224 (/27) 00001010.00001010.00000001.00100000 10.10.1.32 10100000.10100100.10010111.01001110 80.164.151.78 & 11111111.11111111.11111111.11110000 255.255.255.240 (/28) 10100000.10100100.10010111.01000000 80.164.151.64 Ranges: (Yes I’m … Læs resten →

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