Latest revision as of 04:17, 31 January 2018

Basic Networking

This page covers some basic troubleshooting for Linux networks. See Template:LinuxNetworkingFlag for more pages like this one.

Linux network interfaces: Linux/Network Interfaces

Linux network services: Linux/Networking Services

Open Ports

List open ports:

netstat -lntu

@@ Line 1: / Line 1: @@
-=networking=
+=Basic Networking=
-==ping==
+This page covers some basic troubleshooting for Linux networks. See [[Template:LinuxNetworkingFlag]] for more pages like this one.
-Okay, you have managed to run ping. You have even figured out how to use the <code>-c</code> flag. but if it doesn't work, then what?
+Linux network interfaces: [[Linux/Network Interfaces]]
-check configuration.
+Linux network services: [[Linux/Networking Services]]
-<pre>
+=Open Ports=
-/etc/network/interfaces
-</pre>
-do it
-<pre>
-# vim /etc/network/interfaces
-</pre>
-==network device configuration==
-networking device configurations, if they exist, are located in
-<code>/etc/network/interfaces</code>
-the file is not required for network hardware to work - it is optional. if nothing is set in the above file, network is probably being managed by network manager. system level daemon that makes things "just work".
-desktops/laptops usually want network manager, servers/embedded computers/etc want stuff configured in <code>/etc/network/interfaces</code>
+List open ports:
-barebones interfaces file:
 <pre>
-$ cat /etc/network/interfaces
+netstat -lntu
-# The loopback network interface
-auto lo
-iface lo inet loopback
-</pre>
-check for network manager
-<pre>
-$ ps ax | grep NetworkManager
-</pre>
-==option 1: no network manager==
-kill it! kill it!!!
-<pre>
-?        Ssl    0:00 /usr/sbin/NetworkManager --no-daemon
-</pre>
-die die die - ok back to what we were doing.
-to add ethernet hardware, and let it autoconfigure using a dhcp server (i.e., you'll be plugging it into a router or other device running a dhcp server that will hand out ip addresses)
-<pre>
-# The loopback network interface
-auto lo
-iface lo inet loopback
-# Wired connection eth0
-auto eth0
-iface eth0 inet dhcp
-</pre>
-==manual static==
-<pre>
-# The loopback network interface
-auto lo
-iface lo inet loopback
-# Wired connection eth0
-auto eth0
-iface eth0 inet static
-    address 10.10.10.12
-    netmask 255.255.248.0
-    network 10.10.10.0
-    broadcast 10.10.10.255
-    gateway 10.10.10.1
-</pre>
-the following line changed:
-<pre>
-iface eth0 inet static
-</pre>
-static, not dhcp
-if you declare dhcp, all other configuration details ignored
-next declare ip address, 10.10.10.12
-declare subnet mask to 255.255.248.0
-declare the network we're joining to 10.10.10.0
-declare the broadcast ID as 10.10.10.255
-decalre the gateway as 10.10.10.1
-now restart networking service
-<pre>
-$ systemctl restart networking.service
-</pre>
-figure out what networking interfaces are available
-<pre>
-$ ifconfig
-or
-$ ip addr show
 </pre>
+=Related=
+See [[Template:LinuxNetworkingFlag]] for more pages like this one.
-=References=
-"Mastering Linux"
-{{KaliFlag}}
+{{LinuxNetworkFlag}}
-{{NetworkingFlag}}

Linux/Networking: Difference between revisions

From charlesreid1

Latest revision as of 04:17, 31 January 2018

Basic Networking

Open Ports

Related