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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.conf7/28/2019 Lets Kick Linux for an Hour
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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.