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Linux+ Ch12 Routing
Linux+ Ch12 Routing commands and their respective options
| Question | Answer |
|---|---|
| route add -net 127.0.0.1 | Adds normal loopback entry, using Class A netmask |
| route add -net #.#.#.0 netmask 255.255.255.0 dev eth0 | Adds route to network via eth0 |
| route add default gw mango-gw | forces network packets through a default gateway, in this case, mango-gw |
| traceroute -d (hostname) | sets socket level debug option |
| traceroute -n (hostname) | displays hop addresses numerically |
| traceroute -g (gateway) | specifies the source route gateway |
| traceroute -r (hostname) | bypasses normal routing tables and sends packets directly to the host on an attached network |
| traceroute -w (waittime) | sets wait time for probe response in seconds |
| netstat | displays statistics about a network including socket status, interfaces, memory stats and routing tables. |
| netstat -r or --route | displays kernel routing tables |
| netstat -g or --groups | displays multicast group membership |
| netstat -ir | a table of all network interfaces or the specified interface |
| ifdown (devicename) | stops specified network device |
| ifup (devicename) | starts specified network device |
| ifconfig (interfacename) up | starts specified network device |
| ifconfig (interfacename) down | Stops specified network device |
| ifconfig (interfacename) (address) | Sets IP(address) for specified network device |
| ifconfig (interfacename) netmask (address) | Sets the subnet mask (address) for the specified network device |
| ifconfig (interfacename) dstaddr (address) | Sets remote IP address for point to point connection |
| iwconfig | iwconfig sets wireless device settings |
| ifconfig | ifconfig sets wired device settings eth* |
| iwconfig (interfacename) essid | sets the ESSID/network name/domain ID |
| iwconfig (interfacename) nwid | sets network ID to differentiate from other networks |
| iwconfig (interfacename) nick | sets nickname for device on wireless networks |
| iwconfig (interfacename) mode (mode) | Sets operating mode for device (Managed or Ad-Hoc) |
| iwconfig (interfacename) freq/channel (f/c) | Set frequency or channel iwconfig eth* freq2422000000 or 2.422G iwconfig eth* channel [1-6] or auto |
| iwconfig (interfacename) ap | sets bitrate |
| iwconfig (interfacename) txpower | set transmit power |
| iwconfig (interfacename) sens | sets sensitivity threshold |
| iwconfig (interfacename) retry | max connection retries |
| iwconfig (interfacename) rts | sets minimum packet size that the node sends |
| iwconfig (interfacename) frag | sets max size for fragments that can be transferred |
| iwconfig (interfacename) key/enc | sets the encryption keys and security mode |
| iwconfig (interfacename) power | sets power management parameters |
| iwconfig (interfacename) commit | applies pending changes |
| cell | a network zone covered by an access point or tower |
| RTS | signal sent to receiving device |
| slapd | standalone LDAP daemon is the service that allows LDAP requests to be sent and received. |
| /etc/sysconfig/network-scripts | directory containing various network config scripts like ifcfg-eth0 which are executed as start-up |
| wireless device operating modes | Managed and Ad-Hoc |
Created by:
arosenberg981
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