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Net + 10-006 CMD

Network+ 10-006 Command Line Tools

QuestionAnswer
command to show the routing table on a Windows, MAC, or Linux machine. netstat -r
Windows alternative to the netstat -r command route print
This command is used in Windows to display the IP address information of the system. ipconfig
Windows command: Displays all TCP/IP settings and MAC address. ipconfig /all
This Windows command displays the DNS resolver cahce. ipconfig /displaydns
This Windows command flushes the DNS resolver cache. ipconfig /flushdns
This command displays or sets settings on a network card on a Mac/Linux/UNIX system ifconfig
Mac/Linux/UNIX command that displays the network card and IP settings. ifconfig
Mac/Linux/UNIX command to enable the first Ethernet card. ifconfig eth0 up
Mac/Linux/UNIX command that would disable the first Ethernet card. ifconfig eth0 down
This (All OSes) command checks the network connectivity between two nodes. ping
Switch that tells ping to run indefinitely (on Windows) ping -t
Switch that tells ping to use an IPv6 address (Windows) ping -6
UNIX/Linux command to ping an IPv6 address ping6
This command traces the route between two hosts. There are two versions, one for Windows and another for Linux/UNIX/Mac. tracert (Windows) traceroute (Mac/UNIX/Linux)
Specify tracert with an IPv6 address in WIndows tracert -6
Specify an IPv6 address with traceroute in Mac/Linux/UNIX traceroute6
Microsoft utility that combines the functions of ping and tracert and adds some additional functions. pathping
This all OS command allows administrators to examine network statistics about a system. These stats include info such as listening ports and established connections. netstat
Netatat switch: Displays all connections and listening ports. netstat -a
Netstat switch: Displays the executable involved in creating each connection and listening port. netstat -b
Netstat switch: DIsplays Ethernet statistics netstat -e
Netstat switch: Displays FQDN of foreign addresses netstat -f
Netstat switch: Displays addresses and ports in numerical form netstat -n
Netstat switch: Displays the owning process ID associated with each connection. netstat -o
Netstat switch: Displays statistics about the protocol specified after this switch. Options include TCP, UDP, TCP6, UDP6. netstat -p protocol
Netstat switch: Displays per protocol statistics, by default IP, IP6, ICMP, ICMP6, TCP, TCPv6, UDP, UDPv6. netstat -s
Netstat switch that displays the routing table netstat -r
Netstat switch: Displays the current connection offload state netstat -t
Netstat switch: Redisplays the selected statistics at intervals set bu this switch. netstat interval
This command allows a tech to check information about NetBIOS names. nbtstat
Nbtstat switches: Displays the NetBIOS name table for a remote machine, given it's name. nbtstat -a computername
Nbtstat switches: Displays the NetBIOS name table for a remote machine, given its IP address nbtstat -A 192.168.1.6
Nbtstat switches: Lists NBT's cache of remote machine names and their IPs nbtstat -c
Nbtstat switches: Display NetBIOS names registered by the local machine. nbtstat -n
Nbtstat switches: Purge and reload the remote cache name table nbtstat -R
Command to show the full set of nslookup options from the nslookup prompt, ? OR help
Command line utility for diagnosing DNS problems. Works on all OSes. nslookup
All OSes command to diagnose problems associated with the Address Resolution Protocol. arp
arp switch: Displays current ARP entries arp -a
arp switch: Adds a static entry. arp -s 157.55.85.212 00-aa-00-62-c6-09
arp switch: Deletes an entry. Can also delete all entries. arp -d inet_addr or arp -d *
Ping switches: Ping until stopped (Windows) ping -t
Ping switches: Resolve an address to a hostname ping -a
Ping switches: Sent a set number of echo requests ping -n
Ping switches: Ping with the DF flag bit set. ping -f
Command line tool for querying DNS servers. Useful for troubleshooting on Linux/UNIX/Mac systems dig
Created by: douros05