Installing net-tools
A collection of programs that form the base set of the NET-3 networking distribution for the Linux operating system.
Install net-tools​
to install net-tools run this command
sudo apt install net-tools
net-tools Commands​
here is list of net-tools commands
arp​
Linux ARP kernel module. Manipulate the system ARP cache
hadi@Hadi-Laptop:~$ arp -h
Usage:
arp [-vn] [<HW>] [-i <if>] [-a] [<hostname>] <-Display ARP cache
arp [-v] [-i <if>] -d <host> [pub] <-Delete ARP entry
arp [-vnD] [<HW>] [-i <if>] -f [<filename>] <-Add entry from file
arp [-v] [<HW>] [-i <if>] -s <host> <hwaddr> [temp] <-Add entry
arp [-v] [<HW>] [-i <if>] -Ds <host> <if> [netmask <nm>] pub <-''-
-a display (all) hosts in alternative (BSD) style
-e display (all) hosts in default (Linux) style
-s, --set set a new ARP entry
-d, --delete delete a specified entry
-v, --verbose be verbose
-n, --numeric don't resolve names
-i, --device specify network interface (e.g. eth0)
-D, --use-device read <hwaddr> from given device
-A, -p, --protocol specify protocol family
-f, --file read new entries from file or from /etc/ethers
<HW>=Use '-H <hw>' to specify hardware address type. Default: ether
List of possible hardware types (which support ARP):
ifconfig​
Configure a network interface
hadi@Hadi-Laptop:~$ ifconfig -h
Usage:
ifconfig [-a] [-v] [-s] <interface> [[<AF>] <address>]
[add <address>[/<prefixlen>]]
[del <address>[/<prefixlen>]]
[[-]broadcast [<address>]] [[-]pointopoint [<address>]]
[netmask <address>] [dstaddr <address>] [tunnel <address>]
[outfill <NN>] [keepalive <NN>]
[hw <HW> <address>] [mtu <NN>]
[[-]trailers] [[-]arp] [[-]allmulti]
[multicast] [[-]promisc]
[mem_start <NN>] [io_addr <NN>] [irq <NN>] [media <type>]
[txqueuelen <NN>]
[name <newname>]
[[-]dynamic]
[up|down] ...
<HW>=Hardware Type.
List of possible hardware types:
<AF>=Address family. Default: inet
List of possible address families:
ipmaddr​
hadi@Hadi-Laptop:~$ ipmaddr -h
Usage: ipmaddr [ add | del ] MULTIADDR dev STRING
ipmaddr show [ dev STRING ] [ ipv4 | ipv6 | link | all ]
ipmaddr -V | -version
iptunnel​
Create and manage IP tunnels
hadi@Hadi-Laptop:~$ iptunnel -h
Usage: iptunnel { add | change | del | show } [ NAME ]
[ mode { ipip | gre | sit } ] [ remote ADDR ] [ local ADDR ]
[ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]
[ ttl TTL ] [ tos TOS ] [ nopmtudisc ] [ dev PHYS_DEV ]
iptunnel -V | --version
Where: NAME := STRING
ADDR := { IP_ADDRESS | any }
TOS := { NUMBER | inherit }
TTL := { 1..255 | inherit }
KEY := { DOTTED_QUAD | NUMBER }
mii-tool​
View, manipulate media-independent interface status
hadi@Hadi-Laptop:~$ mii-tool -h
mii-tool: invalid option -- 'h'
usage: mii-tool [-VvRrwl] [-A media,... | -F media] [-p addr] <interface ...>
-V, --version display version information
-v, --verbose more verbose output
-R, --reset reset MII to poweron state
-r, --restart restart autonegotiation
-w, --watch monitor for link status changes
-l, --log with -w, write events to syslog
-A, --advertise=media,... advertise only specified media
-F, --force=media force specified media technology
-p, --phy=addr set PHY (MII address) to report
media: 1000baseTx-HD, 1000baseTx-FD,
100baseT4, 100baseTx-FD, 100baseTx-HD,
10baseT-FD, 10baseT-HD,
(to advertise both HD and FD) 1000baseTx, 100baseTx, 10baseT
nameif​
Name network interfaces based on MAC addresses
hadi@Hadi-Laptop:~$ nameif -h
usage: nameif [-c configurationfile] [-s] {ifname macaddress}
netstat​
Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
hadi@Hadi-Laptop:~$ netstat -h
usage: netstat [-vWeenNcCF] [<Af>] -r netstat {-V|--version|-h|--help}
netstat [-vWnNcaeol] [<Socket> ...]
netstat { [-vWeenNac] -i | [-cnNe] -M | -s [-6tuw] }
-r, --route display routing table
-i, --interfaces display interface table
-g, --groups display multicast group memberships
-s, --statistics display networking statistics (like SNMP)
-M, --masquerade display masqueraded connections
-v, --verbose be verbose
-W, --wide don't truncate IP addresses
-n, --numeric don't resolve names
--numeric-hosts don't resolve host names
--numeric-ports don't resolve port names
--numeric-users don't resolve user names
-N, --symbolic resolve hardware names
-e, --extend display other/more information
-p, --programs display PID/Program name for sockets
-o, --timers display timers
-c, --continuous continuous listing
-l, --listening display listening server sockets
-a, --all display all sockets (default: connected)
-F, --fib display Forwarding Information Base (default)
-C, --cache display routing cache instead of FIB
-Z, --context display SELinux security context for sockets
<Socket>={-t|--tcp} {-u|--udp} {-U|--udplite} {-S|--sctp} {-w|--raw}
{-x|--unix} --ax25 --ipx --netrom
<AF>=Use '-6|-4' or '-A <af>' or '--<af>'; default: inet
List of possible address families (which support routing):
plipconfig​
Fine tune PLIP device parameters
hadi@Hadi-Laptop:~$ plipconfig -h
Usage: plipconfig interface [nibble NN] [trigger NN]
plipconfig -V | --version
plipconfig -h | --help
rarp​
Manipulate the system RARP table
hadi@Hadi-Laptop:~$ rarp -h
Usage: rarp -a list entries in cache.
rarp -d <hostname> delete entry from cache.
rarp [<HW>] -s <hostname> <hwaddr> add entry to cache.
rarp -f add entries from /etc/ethers.
rarp -V display program version.
<HW>=Use '-H <hw>' to specify hardware address type. Default: ether
List of possible hardware types (which support ARP):
route​
Show / manipulate the IP routing table
hadi@Hadi-Laptop:~$ route -h
Usage: route [-nNvee] [-FC] [<AF>] List kernel routing tables
route [-v] [-FC] {add|del|flush} ... Modify routing table for AF.
route {-h|--help} [<AF>] Detailed usage syntax for specified AF.
route {-V|--version} Display version/author and exit.
-v, --verbose be verbose
-n, --numeric don't resolve names
-e, --extend display other/more information
-F, --fib display Forwarding Information Base (default)
-C, --cache display routing cache instead of FIB
<AF>=Use -4, -6, '-A <af>' or '--<af>'; default: inet
List of possible address families (which support routing):
slattach​
Attach a network interface to a serial line
hadi@Hadi-Laptop:~$ slattach -h
Usage: slattach [-ehlLmnqv] [-k keepalive] [-o outfill] [-c cmd] [-s speed] [-p protocol] tty | -
slattach -V | --version