Linux Server Administration

Linux Server Administration

Table of Contents
Virtual Machine One – DNS & SSH Server..........................................................................2
DNS Sever.............................................................................................................................3
Primary DNS Server Configuration..............................................................................5
Forward Zone File Creation.........................................................................................10
Reverse Zone File(s) Creation......................................................................................14
BIND Configuration Syntax.........................................................................................16
Secondary DNS Server Configuration.........................................................................20
DNS Clients Configuration...........................................................................................24
Testing clients.................................................................................................................30
SSH Servers........................................................................................................................34
Installation......................................................................................................................35
Configuration.................................................................................................................38
Virtual Machine Two.............................................................................................................44
Remote File Access.................................................................................................................54
FTP User Creation.........................................................................................................59
Directory Permissions....................................................................................................62
Vsftpd configuration......................................................................................................63
FTP Testing....................................................................................................................69
Making DNS Robust..............................................................................................................69
Primary DNS Server Configuration............................................................................72
Forward Zone File Creation.........................................................................................77
Reverse Zone File(s) Creation......................................................................................81
BIND Configuration Syntax.........................................................................................83
Secondary DNS Server Configuration.........................................................................87
Simple Web Services..............................................................................................................91
1

Primary DNS Server Configuration............................................................................94
Forward Zone File Creation.........................................................................................99
Reverse Zone File(s) Creation....................................................................................103
BIND Configuration Syntax.......................................................................................105
Secondary DNS Server Configuration.......................................................................109
DNS Clients Configuration.........................................................................................113
SSL certificate creation...............................................................................................119
2

DNS & SSH Server
DNS Sever
Here, we will install the SSH and DNS server on Virtual machine. These process are
illustrated as below,
First, install the DNS server on Virtual Machine.
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Primary DNS Server Configuration
Primary DNS server configuration is shown below.
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