ntp – POFTUT

Tagged: ntp


NTP Port Number and Configuration Tutorial For Linux Local System

NTP is a core protocol used today’s IT infrastructure to synchronize date and time information. In order to work properly, we need to configuration NTP port in our server, client and intermediate systems like switch, firewall, router. NTP Port UDP 123 NTP uses the UDP port number 123 by default. NTP services run on UDP protocol because of the UDP simplicity and performative behavior. NTP is also a very simple protocol...


What Is Nettime and How To Use Nettime?

Nettime is a simple time synchronization client for Windows 95/98/200/Vista/7/10 and Windows Server 2003/2008/2012/2016 . It is very lightweight and uses very tiny system resource. Features Here is some of main features and attributes of the Nettime application. Free where we do not need to pay any price to install and use Open Source where we can download the whole source code and make changes Small where it needs very...


Tcp and Udp Port List, Names and Usage Frequency

Nmap tool provides popular ports list as a database where this list is also used in network and service scans. Here is the list but before we will look the command which will list ports according to the popularity. Nmap Top Ports Listing We can use sort command in order to list ports according to their usage frequency. The nmap port or service database located at /usr/share/nmap/nmap-services . We provide -k3 which specifies...


Introduction To Pfsense Router and Its Features

Checkpoint, Palo Alto, Cisco ACS and others, all of them are enterprise, popular and good firewalls. But all of them requires some price to pay. Are there any free alternative to these enterprise firewalls? Yes there are a lot but most of them is not a competitor for them. Pfsense is the most advanced, powerful, popular alternative to these firewalls. Pfsense is not too much advanced like them but provides...


How To Synchronize System Time In Linux?

Time is important for systems because all work done according to time and logs get their timestamps. Normally server hardware provides time but it can be false over time because the hardware clock is not precise. Ntp is a protocol designed to get time info from network. Ntp can also provide time information to other servers as a daemon. Ntp full name is Network Time Protocol. Install Ntpdate Ntpdate is...

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