Lets Kick Linux for an Hour

7/28/2019 Lets Kick Linux for an Hour

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Lets Kick Linux for an Hour

MKS


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Para

Installation

File System

Package Management Network

System Administration

System Monitoring


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Installation

Basic things we have to know:

Configuration options Single/Duel Boot

Hardware requirements

Partition

File System Selection

Package Selection

Start the setup.. Dont go away!! Some pop will be up

you have to select


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File System

What is a File System?

File system refers to the files and directories stored

on a computer.

ext2 and ext3 file system journaling

Why the file system changes?

Availability, Data Integrity, Speed, Easy Transition

Time Saving Strong Higher throughput,3 journaling mode

Easy Migration


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Not finish

LVM Logical Volume Manager It starts at the time of installation

You fix disk spaces for/home, /boot, /opt etc

RAID So many folks, Actually what is it? Redundant Array of Independent Disks

combine multiple small, inexpensive disk drives into anarray to accomplish performance

Level 0, 1, 4, 5, linear .

MirroringStripping Parity Distributing Parity Grouping of drives


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Still Something More

Swap Why ?

Disk QuotaWhat is that and why dont we

use that?

Do you want to know about user quota?

If yes type the following - edquota username (Dont be fool, tryas root)

ACL access control list

Package Management RPM, Tool, Network


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And more

Typical layout of a Unix system:

/ - Root directory

/bin - Fundamental user utilities

/sbin - System and administrative programs

/usr - majority of user utilities and applications

/usr/bin - common utilities, tools, and applications


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Let start with Network

Configuration Very Easy! I know where to

put IP address, Gateway and DNS

FirewallWhy why do we need it? Why do

you stop it?

SAMBA

NFS


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Very Familiar

System Settings => Network


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But What about ?File Description

/etc/resolve.conf List DNS servers for internet domain name resolution.Manual page for: /etc/resolv.conf

/etc/hostsLists hosts to be resolved locally (not by DNS).Manual page for: /etc/hosts

/etc/nsswitch.conf

List order of host name search. Typically look at local files, then NIS server,then DNS server.Manual page for: /etc/nsswitch.conf

/etc/sysconfig/network Specify network configuration. eg. Static IP, DHCP, NIS, etc.
http://man.yolinux.com/cgi-bin/man2html?cgi_command=resolv.confhttp://man.yolinux.com/cgi-bin/man2html?cgi_command=resolv.confhttp://man.yolinux.com/cgi-bin/man2html?cgi_command=resolv.confhttp://man.yolinux.com/cgi-bin/man2html?cgi_command=resolv.confhttp://man.yolinux.com/cgi-bin/man2html?cgi_command=resolv.confhttp://man.yolinux.com/cgi-bin/man2html?cgi_command=resolv.conf


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host name resolver configuration filesearch

name-of-domain.com- Name of your domain or ISP 's domain if using their name server

nameserverXXX.XXX.XXX.XXX- IP address of primary name servernameserverXXX.XXX.XXX.XXX- IP address of secondary name server

/etc/resolv.conf

/etc/hosts

locally resolve node names to IP addresses127.0.0.1your-node-name.your-domain.comlocalhost.localdomain localhost

XXX.XXX.XXX.XXXnode-name

/etc/sysconfig/network


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Firewall


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Samba

What is it? What is the use of it?

ANOTHER PROTOCOL.

Sharing Files with Windows and Printer sharing


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NFS

Its a way to sharing files and directories

Network File System


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Basic System Administration

Add user and group

Set date and time

Display setting we called it XWINDOW Keyboard, Mouse configuring

Automated tasks

System Update


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System Monitoring

Did you ever press history at the terminal?

Do you know which processes are running at this

time ?

Do you know how stop a process you dont need?

Where are those log files reside?/var/log

How much memory is using at this moments?

free

How much disk space is free? df


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Conclusion

If you know all the above You have a done a

great job. This is the syllabus of RHCE.

Documents

Lets Kick Linux for an Hour