The new Windows 10 bash shell is not very impressive once you get it installed. I have tried it and I could not ping websites even though Microsoft Edge could access the Internet. It is possible to install packages if these lines are added to the /etc/hosts file. 91.189.91.14 archive.ubuntu.com…
Read MoreThis program will return the IP address of a specified network interface. Use the –ip parameter to get the IP. For example, this will show the IP address of an Ethernet interface: my-ip –ip eth0. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15…
Read MoreThe show interface brief command, issued at the elevated command prompt will show the status of all ports on the switch/router and also show your vlan interfaces you have created. tyrion#show ip interface brief Interface IP-Address OK? Method Status Protocol Vlan1 unassigned YES NVRAM up down Vlan2 172.18.31.128 YES NVRAM…
Read MoreThe netstat command may be used to show the routing tables for your network connection easily. Use the netstat -r command to achieve this. iMac05:~ admin$ netstat -r Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 172.18.31.1 UGSc 31 0 en0 127 localhost UCS 0 0…
Read MoreThe iperf utility is used to transfer data from one machine to another over the Internet. This is a client-server utility and is the go-to utility to test a Wide Area Network connection. To use this, type sudo apt-get install iperf. Then open port 5001 in your router and/or firewall…
Read MoreLinux has quite a few commands for finding out information about your network adapters. Below is an example. Using the ethtool command as root. homer@deusexmachina ~ $ sudo ethtool eth2 [sudo] password for homer: Settings for eth2: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full…
Read MoreWindows Server 2012 R2 supports quite a few cmdlets that allow the user to gain quite a bit of information about the networking configuration of the server machine. Here are a few examples with output. This command: Get-NetAdapterHardwareInfo gets hardware information about your wireless adapters. PS C:\Users\Administrator> Get-NetAdapterHardwareInfo Name…
Read MoreChange the mac address of your network adapter. sudo ifconfig wlan0 down && sudo ifconfig wlan0 hw ether 00:11:22:33:44:55 && sudo ifconfig wlan0 upsudo ifconfig wlan0 down && sudo ifconfig wlan0 hw ether 00:11:22:33:44:55 && sudo ifconfig wlan0 up This will change the mac address of your network interface instantly….
Read MoreUse this command to capture packets with the tcpdump command. This will output to STDOUT, but you may use redirection to divert it to a text file. [root@deusexmachina homer]# tcpdump -i wlp2s0[root@deusexmachina homer]# tcpdump -i wlp2s0 This is the output that you get when you are capturing packets. This is…
Read MoreSimple static routing with a Mikrotik device. These links are useful when you are setting up a Mikrotik device and you need assistance with the complex setup of one of these tiny but powerful devices. http://wiki.mikrotik.com/wiki/Manual:Simple_Static_Routing. Creating a DMZ with a Mikrotik device. http://www.mikrotik.com/testdocs/ros/2.8/appex/dmz.php. Simple firewall script for a Mikrotik…
Read MoreThis simple one-liner allows conversion of an IP address from decimal to binary. I came up with this after playing around with cut and grep. homer@deusexmachina ~/Documents $ ipcalc 172.18.31.2 | grep Address | cut -b 33-68 10101100.00010010.00011111. 00000010homer@deusexmachina ~/Documents $ ipcalc 172.18.31.2 | grep Address | cut -b 33-68…
Read MoreList the network devices on your system easily The ethstats command available on a Linux system allows you to show the network interfaces installed in your machine and the data transfer rates if they are connected to a network and they are not idle. Install this script using this command….
Read MoreThe Internet makes use of many ports for connectivity, this is a necessary part of the networks that compose the global network and enables all kinds of network protocols to work together. Here are some of the most common ports in use. Echo: 7 – echo is used to test…
Read MoreThis is a PCI Express card that allows you to build a thin client PC. This hardware agnostic and would be very useful for re-purposing an old computer and using it to access computing resources on a home server. A thin client computer is one that does not run an…
Read MoreThe Ubuntu 12.10 distribution has a new remote management system called Landscape. This management framework allows a manager of a network of Ubuntu machines to manage all the computers from one location. The Landscape system can manage installation of updates across all of the installed desktops, and make sure all…
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