CUPS (Common Unix Printer System) ,FTP( File Transfer Protocol)

CUPS (Common Unix Printer System) ,FTP( File Transfer Protocol)

CUPS:-

CUPS is the primary printing system under Red Hat Enterprise Linux. CUPS support a new Internet Printing Protocol (IPP), based on HTTP/1.1

Configuration

Steps:

1. Type the following command

#printconfig

Or

#system-config-printer

Assign

Queue name   :           xyz

Device name  :           IPP

Select Printer Driver “ raw printer queue”

Server : server1.example.com

Path for the Queue Directory : /printer/xyz

And finish the Wizard

2. Check the status of the Queue

#lpq

3. To Print any file

#lp <filename>

#lpr <filename>

4. To remove any job

#lprm job_number

Or

#cancel job_number

5. To check status with job number

#lpstat

 FTP:( File Transfer Protocol):-

FTP provides file sharing between linux to linux , linux to Unix and Linux to Windows

Service Profile

Type                       :        System V manage
Package                  :        vsftpd
Daemon                  :        vsftpd
Script                      :        vsftpd
Configuration File    :        /etc/vsftpd/vsftpd.conf
Port                         :        21

FTP service provide two level of access

1. Anonymous Access
2. User Access

A

            In Anonymous access client machine can connect to target machine via users FTP and anonymous. In this case we don’t require password. By default these users have only permission to download  (get)

B

            In user access, client machine connect to Target machine by having username and password on Target machine

For anonymous user FTP working directory is ‘/’

/ = /var/ftp

We can also provide user level security

We have two files

#vi /etc/vsftpd.ftpuser

#vi /etc/vsftpd.user_list

User entry in these two file are not allowed to access ‘ftp’

If we want that user entry in vsftpd.user_list can only access ftp server then we need a entry in vsftpd.conf

#vi /etc/vsftpd/vsftpd.conf

Add following line

Userlist-deny  = No

In order to assign upload permission to ftp and anonymous users

#vi /etc/vsftpd/vsftpd.conf

Anonymous-enable = yes

#uncomment line 27

Anon-upload-enable = yes

#uncomment

Chown-uploads  =  yes

Chown-username  =  daemon

Now create a directory inside /var/ftp

#mkdir upload

#chmod 777 upload

Chgrp ftp upload

Assign group owner ship to ftp to ‘upload’ directory

Start the Service

#service vsftpd restart

Access FTP

#ftp 172.24.254.254

For Anonymous user

Username = ftp

Password =`press Enter`

For User Access

Username = Deepak

Password = *****

In Graphical

ftp://Deepak@172.24.254.254

To upload: put

To download : get

Example:

            #put <filename> to upload any file in user home directory

            #get <filename. To download any file from user home directory

We can also open ftp server as

#elinks ftp://172.24.254.254



Thanks,