studying linux network configuration & commmands

8/2/2019 Studying Linux Network Configuration & Commmands

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PRESENTED BY.. ROCHITA RUDRA PRIYANKA JAIN

MAYUR PATIL


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Definition: Linux is a Unix-like

computer operating system

assembled under the model of freeand open source software

development and distribution.


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In order tounderstand the

popularity ofLinux,we need totravel back in time.About 30 yearsago......


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In 1969, a team of developers in the BellLabs laboratories developed a newoperating system, which was

Simple and elegant. Written in the C programming languageinstead of in assembly code.

Able to recycle code.

They named it "UNIX."


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OCTOBER 5 , 1991 LINUS TORVALDSLinux runs on:pcs,mobile phones ,

tablets , TVs , mainframes,supercomputers ,etc

10 fastest supercomputersOpen source code: used ,modified ,

distributed etc.


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MultiplatformMultiuserMultitaskingMemory protectionUnified memory poolDynamically linked libraries

FREE: All source code, whole kernel, alldrivers, all user programs.


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Popular mainstream Linuxdistributions include Debian (and its

derivatives such as Ubuntu), Fedoraand openSUSE.

Linux system distributions may vary inmany details of system operation,

configuration, and software packageselections.


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Ubuntu , Linux mint : basicOpenSUSE , fedora , debian GNU : middle road

distributions


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UNIX LINUX

Code optimization for ahandful of architectures.

Source code not freelyavailable for commercialUnix versions .

Has module-based kernel

Unix vendors use standardpackage managers .

High on cost perspectiveand support after purchase.

Widely compatible

Source code dispatched andinstalled very easily by endusers .

Has very flexible modulearchitecture .

Package management istricky due to infinite no ofdistributions and applications.

Charge relatively little .


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LINUX DOS

32 bit and 64 bit OS

MultitaskingMultiuser supported

Open-sourced (GPL)Can run on multiple

architectures

16 bit OS

SingletaskingSupports 1 user

Closed-sourced

Tied to 8086platform


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1.CAL&cal

current month&cal 11 2009

November 2009&call 2010

calendar for 2010


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2. Alias&alias SL=LS

unalias: to get back&unalias LS

3. Cd

&cd/etc&cd

4.Cp

cp-r dir2/dir1/cp-p dir1/file dir2/cp-i dir/file dir2/


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5.Date6.Mkdir

&mkdir dir1&1s&mkdir dir2 dir3

7.Is&pwd:/home/linuxconfig

pwd:show your current location8.Rm

rm-f foo.bar9.Atm

atm job10.Chat : issued to interact with a modem

via a chat script11.Clear : clear screen command


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12.Cmp : compares two files13.Password : change login password

14.Rmdir : removes empty directories15.Useradd : removes as address16.Userdel : removes an account

17. Telnet : remote login over network18.Shutdown-r-option reboot-/-h option halt

19.Rusers : list who is logged on localmachines

20.Rwall : write to all users over anetwork


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21.Ping

22.PicoP-program forI -internet

N-newsE-email

23.Logout : execute logout as

individual user and using up loginprompt.24.Lock : temporarily lock enabled

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