hello friends I m Deepak Saini again and today I m trying to explain the NTP server.
Lets start
What is ntp
NTP satnds for network time protocol .NTP server is configure t o synchronize date and time over the network. Mainly configured to match time for job scheduling ,error -messages , application , loging and so on.
We are set the time of the ntp server with the UTC (universal time clock )
Service profile
1 Package - ntp*
2 Daemon - ntpd
3 Script - /etc/initd/ntpd
4 Port - 23
5 Config-File - /etc/ntp.conf
6 Log files - /var/log/messages
We are not run ip tables before the installation of ntp server
Lets start
1 Check the package of the ntp server
Synatx :- rpm -qa | grep ntp
2 Check the service status of the ntpd on your computer
Syntax :- #service ntpd status
3 Open the config file of the ntp server
syntax :- # vim .etc.ntp.conf
uncomment tht line no 35 and 36 and save and exit If you want the time from other server then insert here 127.0.0.1 = 192.168.x.x. replace the 127.0.x.x like this with your server ip.
4 Start the service of the ntp server ntpd
Syntax :- #service ntpd start
Syntax :-# service ntpd restart
5 For start the service on the boot time.
Syntax :- chkconfig ntpd on
verify the service start on boot
syntax :- chkconfig ntpd --list
6 Flsh the iptables rules all
syntax :- iptables -F
7 Use the iptables for create the firewall rules
syntax :- #iptables -I INPPUT 5 -p udp -m udp --d port 123 -j ACCEPT
8 Save the firewall rules you just created
syntax :- #service iptables save
9 Then restart the iptables service
syntax :- # service iptables restart
10 Query for the boolran value you need to change
syntax:-#getsebool -a | grep ntp
11 Disable the SElinux protection
syntax :- # setsebool -P ntpd_disable_trans=1
12 Verify that the boolean has changed
syntax :- # getsebool -a | grep ntp
Our server is ready to use
i post next post how set up time on client machine with the ntp server
thanks for reading and sorry for R.I.P english _/\_
Lets start
What is ntp
NTP satnds for network time protocol .NTP server is configure t o synchronize date and time over the network. Mainly configured to match time for job scheduling ,error -messages , application , loging and so on.
We are set the time of the ntp server with the UTC (universal time clock )
Service profile
1 Package - ntp*
2 Daemon - ntpd
3 Script - /etc/initd/ntpd
4 Port - 23
5 Config-File - /etc/ntp.conf
6 Log files - /var/log/messages
We are not run ip tables before the installation of ntp server
Lets start
1 Check the package of the ntp server
Synatx :- rpm -qa | grep ntp
2 Check the service status of the ntpd on your computer
Syntax :- #service ntpd status
3 Open the config file of the ntp server
syntax :- # vim .etc.ntp.conf
uncomment tht line no 35 and 36 and save and exit If you want the time from other server then insert here 127.0.0.1 = 192.168.x.x. replace the 127.0.x.x like this with your server ip.
4 Start the service of the ntp server ntpd
Syntax :- #service ntpd start
Syntax :-# service ntpd restart
5 For start the service on the boot time.
Syntax :- chkconfig ntpd on
verify the service start on boot
syntax :- chkconfig ntpd --list
6 Flsh the iptables rules all
syntax :- iptables -F
7 Use the iptables for create the firewall rules
syntax :- #iptables -I INPPUT 5 -p udp -m udp --d port 123 -j ACCEPT
8 Save the firewall rules you just created
syntax :- #service iptables save
9 Then restart the iptables service
syntax :- # service iptables restart
10 Query for the boolran value you need to change
syntax:-#getsebool -a | grep ntp
11 Disable the SElinux protection
syntax :- # setsebool -P ntpd_disable_trans=1
12 Verify that the boolean has changed
syntax :- # getsebool -a | grep ntp
Our server is ready to use
i post next post how set up time on client machine with the ntp server
thanks for reading and sorry for R.I.P english _/\_
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