Linux Basic Networking Command
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This document provides an overview of Linux network basics and commands. It discusses the differences between Linux and Unix, listing features such as the availability of Linux source code and its ability to run on various hardware configurations. A number of essential network commands are also outlined, including ifconfig and netstat for network configuration and monitoring, ping and traceroute for testing connectivity, and tcpdump and nmap for packet analysis and scanning.
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This document provides an overview of common Linux networking commands such as ifconfig, route, traceroute, nslookup, arp, dig, and netstat that are used to configure network interfaces, display routing tables, trace network routes, lookup domain names, manage address resolution, query DNS servers, and view network statistics. It also discusses how to use ifconfig to assign IP addresses to interfaces, route to view routing tables, arp to manage the address resolution cache, and dig for more powerful DNS lookups than nslookup.
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SOFTWARE TOOLS(Bhavik).pptx
This document discusses various networking tools including Tracert, Ipconfig, ARP, Ping, NSLookup, Dig, route, netstat, Wireshark, port scanners, and throughput testers. It provides information on what each tool is used for and how to use some of the tools like Tracert to diagnose network issues, Ipconfig to view IP settings, and Wireshark which is a network packet analyzer that can capture, filter, and visualize network traffic in real-time. It also discusses how third party tools like port scanners and throughput testers can be used to measure network performance.
CSS L17 - DOS COMMANDS IN COMPUTER NETWORKING
CSS L17 - DOS COMMANDS IN COMPUTER NETWORKING
After this learning module the learners will be able to . . .
○ Apply the DOS commands in computer networking
○ Check network connectivity using PING command.
○ Checking the default gateway and IP address
1)Please explain the commands ifconfig, ping, traceroute, netstat, d.pdf
1)Please explain the commands ifconfig, ping, traceroute, netstat, dig, nslookup, route, host,
hostname.
2). Explain briefly about TCP/IP and its Protocol Architecture.
3) Explain the difference between TCP/IP Protocol stack and OSI model.
Solution
Answer:
1) Ipconfig
Ipconfig is an MS-DOS utility that can be used from MS-DOS and an MS-DOS shell to display
the network settings currently assigned and given by a network. This command can be utilized to
verify a network connection as well as to verify your network settings.
Ping
Ping is one of the most commonly used network commands that allows you to ping another
network IP address. Pinging another address helps determine if the network card can
communicate within the local network or outside network.
Netstat
The netstat command is used to display the TCP/IP network protocol statistics and information.
Nslookup
The nslookup MS-DOS utility that enables a user to do a reverse lookup on an IP address of a
domain or host on a network.
Route
The route MS-DOS utility enables computers to view and modify the computer\'s route table.
traceroute
The tracert command in MS-DOS and Windows (known as traceroute in Unix-like operating
systems) is a useful tool for diagnosing network issues. It allows you to view a listing of how a
network packet travels through the network and where it may fail or slow down. Using this
information you can determine the computer, router, switch or other network device possibly
causing your network issues.
host
solves a host name into an Internet Protocol (IP) address or an IP address into a host name.
the hostname command is used to show or set a computer\'s host name and domain name. It is
one of the most basic of the network administrative utilities.
A host name is a name that is assigned to a host (i.e., a computer connected to the network) that
uniquely identifies it on a network and thus allows it to be addressed without using its full IP
address. Domain names are user-friendly substitutes for numeric IP addresses.
The basic syntax for the hostname command is
hostname [options] [new_host_name]
2)TCP/IP protocols map to a four-layer conceptual model known as the DARPA model , named
after the U.S. government agency that initially developed TCP/IP. The four layers of the DARPA
model are: Application, Transport, Internet, and Network Interface. Each layer in the DARPA
model corresponds to one or more layers of the seven-layer Open Systems Interconnection (OSI)
model.
Network Interface Layer
The Network Interface layer (also called the Network Access layer) is responsible for placing
TCP/IP packets on the network medium and receiving TCP/IP packets off the network medium.
TCP/IP was designed to be independent of the network access method, frame format, and
medium. In this way, TCP/IP can be used to connect differing network types. These include
LAN technologies such as Ethernet and Token Ring and WAN technologies such as X.25 and
Frame Relay. Independence from any specific ne.
Basic Introduction to Technology (networking).pdf
The document provides an overview of networking concepts and components. It begins with basic definitions of networks and networking. It then describes common networking devices like hubs, switches, routers, and network cards. It covers networking cables, IPv4 addressing, routing protocols like RIP and EIGRP, redistribution between protocols, ACLs, NAT, VPN tunnels, and Frame Relay. It concludes with an example implementation of a VPN tunnel between two routers.
03 linuxfirewall1
The document discusses Linux firewalls and the iptables software. It provides information on how iptables organizes rules into tables and chains and describes some common iptables commands. The key points are:
- Iptables is a net filter software that controls inbound and outbound traffic through rules organized in tables (filter, nat, mangle) and chains.
- Common commands include iptables -L to list rules, iptables -A to append rules, and iptables -F to flush/delete all rules.
- Examples are given of iptables rules to block ping requests between machines and restrict the Ubuntu machine's access to Facebook.
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1)Please explain the commands ifconfig, ping, traceroute, netstat, d.pdf
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- 1. Linux Network Basics Akhil Nadh Pc
- 2. Unix Vs Linux LINUX The source code of Linux is freely available to it’s users. Check it out here. Linux is basically the name of the Kernel Linux primarily uses Graphical User Interface with an optional Command Line Interface. Different version of Linux are Ubuntu, Linux Mint, RedHat, Solaris, etc Linux installation is economical and doesn’t require much specific and high end hardware. Linux OS can be installed and executed on almost anything that has a processor
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- 6. ifdown ifdown eth0 Will bring eth0 up if it is currently down.
- 7. Nslookup nslookup is a network administration command-line tool available for many computer operating systems for querying the Domain Name System to obtain domain name or IP address mapping or for any other specific DNS record.
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- 9. PING (Packet Internet Groper) o PING command sends packet requests to the address you specify to test the connectivity between 2 nodes
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- 14. tcpdump Tcpdump captures packets off a network interface and interprets them for you. It can be used to save entire packets for later inspection.
- 15. Nmap Nmap servename Look for vulnerable port and activities
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