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DNS server in Ubuntu / debian

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To create a simple Local DNS server we need do the following steps,
Required files:
* BIND
* /etc/resolve.conf

* /etc/named.conf

STEPS:-
1) apt-get install bind9 dnsutils
2) edit: /etc/resolve.conf

search sysnx.com
nameserver 192.168.1.10
nameserver 192.168.1.20

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Fedore – Apache2 SSL Enable : Hints

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1) check the pkg : openssl and modssl
# cd /etc/pki/tls/cert -> It contains default SSL Certificate Key

# make server.key -> then Enter the password

#make server.crt

# cp server.key /etc/pki/tls/private

# vi /etc/httpd/conf.d/ssl.conf

here change the Parameters
SSL Certificate File & SSL Certificate Key

# service httpd restart

Testing the SSL: https://systimanx.com -> It ask the certificate Key to verify.

Linux File system Types

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The most common filesystem types are:

ext2,ext3,ext4  Standard Linux filesystems
iso9660            Filesystem used on CD-ROMs
proc                  Not a real filesystem, so uses none as the device.
                         Used as a way for the kernel to report  system information to user processes
Sysfs               exports information about devices and drivers from the kernel device model to user space
vfat                The filesystem used by Windows 95
auto                Not a real filesystem type. Used as a way of asking the mount command to probe for various
                       filesystem types, particularly for removable media
ReiserFS         is a general-purpose, journaled computer file system designed and implemented by a team at
                       Namesys led by Hans Reiser     
 XFS               is a journaling filesystem,  developed  by  SGI
JFS                 is  a  journaling  filesystem,  developed  by IBM
tmpfs             is a common name for a temporary file storage facility on many Unix-like operating systems
usbfs              USB Device Filesystem.
nfs (Unix-specific) Networked filesystems include
smbfs (Windows or Samba)

List of Server you can run in Linux

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apache — Web server
boa — lightweight Web server
sshd — ssh server
sendmail — mail server
qmail — mail server
postfix — mail server
named — DNS server
bind    --- DNS Server
squid — Web proxy server
nessusd — penetration testing server
postgresql — database server
mysql — database server
oracle — database server
telnet — telnet server
wu-ftpd —  ftp server
vsftpf  ---- ftp server  
samba  --  windows file sharing

Trobleshooting network issues in ubuntu

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1) cat etc/network/interfaces to view IP address

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static # change here dhcp to static
address 172.16.183.XX  # ip address of the machine
netmask 255.255.255.0  # network mask
gateway 172.16.183.2   # Gateway of the machine

Last Updated on Tuesday, 06 December 2011 06:08 Read more...

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