5/29/2023 0 Comments Port 123 ntp zyxelYour options are to live with it or ask BT to stop ntp up stream noting that you will not able able to get internet time yourself for your servers. Port 123 Details 123, udp, NTP, Network Time Protocol (NTP) - used for time synchronization RFC 5905 Security Concerns: It provides both information. Configure firewall to enable NTP port 123 on RHEL7 Linux 19 December 2016 by Admin Once you configure NTPD service on your RHEL7 linux you will need to allow traffic through the firewall on port 123. The response from the high bandwidth time server on the internet is bigger than the request. Enabled: Enable NTP client mode operation. It is used as the originator of the attack sends a small request having spoofed your IP address or domain name. Go to to find other information on the Switch. The ZyXEL NSA325 v2 2-Bay Power Plus Media Server provides a convenient. The ntp (Network Time Protocol) UDP flood you are seeing is part of a world wide Distributed Denial of Service. The OP posted about npt - using post 123 a UDP part of the TCP/IP protocol and the forum administrator suggests moving the remote admin port from 80 (http) to 81 or 82 (TOR borwoser ports) - these are completely unrelated! ![]() ![]() Its worth while changing the remote management port on the firewall from 80 to 81 or 82, this should stop the flood if this is the same issue we have seen with Zyxel and a few others
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