Learn Red Hat Linux Pro.

2. xmms-1.2.10-9.i386.rpm
Package Name Version Type of Extension
architecture
 rpm <options> <package name>
 rpm -ivh <package name>
--aid (install package along with dependencies)
--force (forcefully)

3. -U (upgrade the package)
# rpm -q <package name> (Show whether package is install or not)
-qa (queries all installed rpm packages)
-qc (lists only the configuration files stored in the
queried package)
-qd (lists only the documentation files stored in the
queried rpm)
-qi (displays whole information about the queried rpm)
-qs (displays the states of files in the queried rpm)
-ql (displays all files related to the queried rpm)

4. crontab -e -u username
*/1 * * * * echo ‘Hello’ > /dev/tty2 (min, hour, date, month, day)
save file.
 service crond restart (now when user login on 2nd
terminal it will get
message hello after every 1 min.)
 crontab -l -u username (to see how many crontab are running for user)
 crontab -r -u username (deletes the crontab)
 crontab –e
11 12 * * * mkdir rahul

5. 1. # vi .bashrc (This is hidden file & used to create shortcuts for
commands)
alias c=’clear’
alias m=’mkdir’
save the file
by typing the above words it will create shortcut for clear and mkdir (c & m)
but after editing file first logout & again login.
2. # vi .exrc (we have to create this file)
:se nu (write this in the file)
save the file
After saving file you will find line numbers already written in every file you open
for editing

6.  neat To open network configuration on
graphic terminal
 ifconfig To check the IP & MAC address of
NIC.
 ifconfig eth0 <ip address> To assign temporary IP
 ifup eth0 To enable network card.
 ifdown eth0 To disable network card.
 vi /etc/sysconfig/network-scripts/ifcfg-eth0
 vi /etc/sysconfig/networking/devices/ifcfg-eth0
To assign permanent IP , here we have to edit a file

7. ping (-c2, -a) <ip address> - To check connectivity
(-c2 for seeing two lines, -a listing)
wget <website> - To download the website
home page
elinks <website> - To open website in command line
htmlview <website name> - To open website in command line

8. Sharing of files & folders between Linux.
Packages:
portmap-4.0-63.i386.rpm
nfs-utils-1.0.6-4.6.i386.rpm
Port Number:
2049 – nfsd
111 – portmap
Configuration File:
/etc/exports
Service:
portmap
Nfs
Daemons:
nfsd

9. Create a folder and make files or paste files you want to share from in
network.
(ex.- /var/dump)
Edit file for sharing
# vi /etc/exports
/var/dump *(rw)
/var/rahul 192.168.1.15(ro) (save the file)
(in first line, we have share /var/dump for all users in a network with read &
write permission & in second line, we have shared /var/rahul only for the
PC having IP address 192.168.1.15 with read only permission)
 service nfs restart
 service portmap restart

10.  showmount -e (To check NFS Server and its shared directory from Server itself)
 showmount -e <IP address of Server > (To check NFS Server and its shared
doc from client)
CLIENT END: For taking NFS server service we have to mount directory from
server to client
 mount -t nfs <server IP>:/var/dump /mnt
 cd /mnt (here you will find all the shared material)
 cd /net
 cd /IP of NFS Server

11. Required Package
vsftpd*
 rpm -ivh vsftpd*
 vi /etc/vsftpd/vsftpd.conf
We have to remove # infront of the following lines.
Line no. 12:
anonymous = default user
(FTP uses two users anonymous & FTP anonymous has no password)
Line no. 15:
local_enable=yes
(Local user can login through FTP)

12. Line no. 18:
write_enable=yes
(write permission is enabled to FTP)
Line no. 27:
anon_upload_enable=yes
(anonymous user can upload files)
Line no. 31:
anon_mkdir_write_enable=yes
(anonymous user can create directory )
Line no. 35:
dir message enable=yes
Line no. 85:
Ftpd_banner= welcome to FTP

13. service vsftpd restart
Client end:
ftp <Server IP>
>cd pub
>get <filename> (download)
>put <filename> (upload)
>bye (exit)