I need to set my laptop as an NTP server within my own local area network.
From what I notice, I am able to sync the client to my NTP server in a local area network ONLY when
a.) There is an internet connection. b.) When I tried to connect to another LAN without internet access, I still managed to sync the computer.
There are two LANs that I connected to:
1.) 192.168.1.x subnet with internet 2.) 192.168.2.x subnet without internet
Here is the server. As you can see, when I tried restarting the service when I am connected to the LAN without the internet, I failed to sync with the client.
See, I failed to sync. However, if I am connected to the internet, all is well. How can I setup the NTP server such that even though I do not have any internet connection, my laptop can still act as an NTP server that my clients in the LAN will be able to sync to??
I also included here what my /etc/ntp.conf as it may provide information about where I lack.
# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help driftfile /var/lib/ntp/ntp.drift # Enable this if you want statistics to be logged. #statsdir /var/log/ntpstats/ statistics loopstats peerstats clockstats filegen loopstats file loopstats type day enable filegen peerstats file peerstats type day enable filegen clockstats file clockstats type day enable # Specify one or more NTP servers. # Use servers from the NTP Pool Project. Approved by Ubuntu Technical Board # on 2011-02-08 (LP: #104525). See http://www.pool.ntp.org/join.html for # more information. server 0.ubuntu.pool.ntp.org server 1.ubuntu.pool.ntp.org server 2.ubuntu.pool.ntp.org server 3.ubuntu.pool.ntp.org server 127.127.1.0 fudge 127.127.1.0 stratum 10 # Use Ubuntu's ntp server as a fallback. server ntp.ubuntu.com # Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for # details. The web page <http://support.ntp.org/bin/view/Support/AccessRestrictions> # might also be helpful. # # Note that "restrict" applies to both servers and clients, so a configuration # that might be intended to block requests from certain clients could also end # up blocking replies from your own upstream servers. # By default, exchange time with everybody, but don't allow configuration. restrict -4 default kod notrap nomodify nopeer noquery restrict -6 default kod notrap nomodify nopeer noquery # Local users may interrogate the ntp server more closely. restrict 127.0.0.1 restrict ::1 # Clients from this (example!) subnet have unlimited access, but only if # cryptographically authenticated. #restrict 192.168.123.0 mask 255.255.255.0 notrust # If you want to provide time to your local subnet, change the next line. # (Again, the address is an example only.) #broadcast 192.168.1.255 #broadcast 192.168.2.255 # If you want to listen to time broadcasts on your local subnet, de-comment the # next lines. Please do this only if you trust everybody on the network! #disable auth #broadcastclient # Allow LAN machines to synchronize with this ntp server #restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap #restrict 192.168.2.0 mask 255.255.255.0 nomodify notrap