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How to Ekiga on RHEL 6.3 or Centos 6.3 or Scientific Linux 6.3


Ekiga

Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for GNOME. Ekiga uses both the H.323 and SIP protocols.
Ekiga is compatible with any software, device or router supporting SIP or H.323. It includes SwissVoice, CISCO, SNOM, ... IP Phones, but also software like Windows Messenger, Netmeeting, SJPhone, Eyebeam, X-Lite, ... or also the Asterisk popular IPBX, as well as any other commercial or Open Source IPBX. Ekiga is not compatible with Skype.
It supports all major features defined by those protocols like call hold, call transfer, call forwarding, ... It also supports basic instant messaging, and has advanced support for NAT traversal. Ekiga supports the best free audio and video codecs, and has wideband support for a superior audio quality, together with echo cancellation.
Ekiga has been designed for the GNOME desktop but it works very well with the KDEdesktop too. For example, Ekiga provides an animated icon automatically added in the KDEsystem tray.

how to dhcp server on Cisco Packet Tracer


Router>enable
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#in
Router(config)#interface fa
Router(config)#interface fastEthernet 0/0
Router(config-if)#ip ad
Router(config-if)#ip address 192.168.1.1 255.255.255.0
Router(config-if)#no shutdown
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

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How to configure Network File System (NFS) on RHEL 6.3 or Centos 6.3 or Scientific Linux 6.3

It is very Easy to Implement a Network File System (NFS).It is 100% Work.
[root@muraditbd ~]# yum install nfs* -y
Loaded plugins: refresh-packagekit, security
Setting up Install Procetss
Package nfs-utils-lib-1.1.5-4.el6.i686 already installed and latest version
Package 1:nfs-utils-1.2.3-26.el6.i686 already installed and latest version
Package nfs4-acl-tools-0.3.3-6.el6.i686 already installed and latest version
[root@muraditbd ~]# service nfs restart;chkconfig nfs on;servie rpcbind restart;chkconfig rpcbind on;service nfslock restart;chkconfig nfslock on;
[root@muraditbd ~]# vim /etc/exports
/var/ftp/pub *(ro,sync)
[root@muraditbd ~]# service nfs restart;servie rpcbind restart;service nfslock restart;
[root@muraditbd ~]# exportfs -r
[root@muraditbd ~]# exportfs
/var/ftp/pub <world>
[root@muraditbd ~]# showmount -e 192.168.0.254
Export list for 192.168.0.254:
/var/ftp/pub *
############# NFS-Client-Configuration##########

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How to NIS server on RHEL 6.4 or Centos 6.4 or Scientific Linux 6.4

    It is very easy to Implement a Network Information Service (NIS).Do not worry., It is work 100%.                        
                                                         Selinux must be Permissive or Disable
[root@muraditbd ~]# getenforce
Enforcing
[root@muraditbd ~]# setenforce 0
[root@muraditbd ~]# getenforce
Permissive
[root@muraditbd ~]# service iptables status
iptables: Firewall is not running.

[root@muraditbd ~]# yum install yp* -y
Loaded plugins: refresh-packagekit, security
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package yp-tools.i686 0:2.9-12.el6 will be installed
---> Package ypbind.i686 3:1.20.4-29.el6 will be installed
---> Package ypserv.i686 0:2.19-22.el6 will be installed
--> Finished Dependency Resolution


Dependencies Resolved

================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
yp-tools i686 2.9-12.el6 base 63 k
ypbind i686 3:1.20.4-29.el6 base 50 k
ypserv i686 2.19-22.el6 base 127 k

Transaction Summary
================================================================================
Install 3 Package(s)

Total download size: 240 k
Installed size: 532 k
Downloading Packages:
--------------------------------------------------------------------------------
Total 19 MB/s | 240 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : 3:ypbind-1.20.4-29.el6.i686 1/3
Installing : yp-tools-2.9-12.el6.i686 2/3
Installing : ypserv-2.19-22.el6.i686 3/3
Verifying : yp-tools-2.9-12.el6.i686 1/3
Verifying : ypserv-2.19-22.el6.i686 2/3
Verifying : 3:ypbind-1.20.4-29.el6.i686 3/3

Installed:
yp-tools.i686 0:2.9-12.el6 ypbind.i686 3:1.20.4-29.el6 ypserv.i686 0:2.19-22.el6

Complete!

[root@muraditbd ~]# vim /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=muraditbd.com
NISDOMAIN=muraditbd.com
[root@muraditbd ~]# nisdomainname muraditbd.com
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How to kickstart on RHEL 6.4 OR Scientific linux 6.4or Centos 6.4 Via NFS

It is very easy to install your linux on  computer via Network .It is 100% work.
[SELINUX MUST BE permissive or disabled]
#vim /etc/sysconfig/selinux
selinux=disabled
save & exit
# reboot
#getenforce
[note if show selinux is disabled fine or if show selinux status enforcing or Permissive follow those Instruction]
if show Enforcing
to set selinux=Permissive
#setenforce 0
you can show selinux status
#getenforce

'1' for Enforcing '0' for Permissive

Set your Local LAN Static IP
I used Here: 192.168.0.254
#serrvice NetworkManager stop;
#chkconfig NetworkManager off;
#ifdown eth0;
#ifup eth0;
#yum install dhcp* -y
#vim /etc/dhcp/dhcpd.conf

all content are remove & Insert all line
----------------------------------------------------------------
ddns-update-style interim;
ignore client-updates;
authoritative;
allow booting;
allow bootp;
allow unknown-clients;
# A slightly different configuration for an internal subnet.
subnet 192.168.0.0 netmask 255.255.255.0 {
  range 192.168.0.1 192.168.0.253;
  option domain-name-servers 192.168.0.254;
  option domain-name "server1.example.com";
  option routers 192.168.0.254;
  option broadcast-address 10.5.5.31;
  default-lease-time 600;
  max-lease-time 7200;

# PXE SERVER IP

next-server 192.168.0.254;
filename "pxelinux.0";
}

Save & Exit


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How to load balancing or Failover connection on Mikrotik

It is very easy to Merge Multiple WAN (2 ISP) TO One LAN.And Merge Different ISP Bandwidth.
it is very Simple.Here is my Final Script : Do not worry it is 100% Work.

/ip address
add address=192.168.0.1/24 network=192.168.0.0 broadcast=192.168.0.255 interface=Local
add address=192.168.1.2/24 network=192.168.1.0 broadcast=192.168.1.255 interface=WAN1
add address=192.168.2.2/24 network=192.168.2.0 broadcast=192.168.2.255 interface=WAN2

/ip dns set allow-remote-requests=yes cache-max-ttl=1w cache-size=5000KiB max-udp-packet-size=512 servers=221.132.112.8,8.8.8.8


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{- THE ULTIMATE WINDOWS 8 PASSWORD RECOVERY -}

If you forgot the administrator password, it is no big deal to reset the password on a Windows 8 computer. This easy-to-follow, step-by-step guide shows how. The procedure described here also works for Windows 7, Windows Vista, and Windows XP, although I will use a Windows 8 boot DVD in the guide.

How to LDAP (Directory Server) on RHEL 6.4 or CentOS 6.4 or Scientific Linux 6.4

[root@muraditbd ~]# vim /etc/sysconfig/iptables
[bottom of the page add]
# Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
-A INPUT -m state --state NEW -m tcp -p tcp --dport 389 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 636 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 9830 -j ACCEPT
COMMIT
[save&exit.]
[root@muraditbd ~]# service iptables save;service iptables restart;chkconfig iptables on;service iptables status;
[root@muraditbd ~]# wget http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

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