udp port

Linux netconsole kernel module allows dmesg output to be transmitted via the syslogd network. It is kernel-level network logging over udp allowing debugging of problem where disk logging fails and serial consoles are impractical. This is a step-by-step mini howto about netconsole configuration under Red Hat, CentOS, Fedora and Debian Linux.

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It is really a good idea to have one central logging host for security and performance reason. For example monitoring log files will help you to detect: * Security risks (you can see failed login attempt, port scan etc) analysis * Troubleshoot user login problem * Save disk space * If hard disk crashed on […]

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FreeBSD use the Network Time Protocol (NTP) for synchronizing the clocks of computer systems over packet-switched, variable-latency data networks. NTP uses UDP port 123. If you have one computer or single server then you can easily synchronization time with other NTP servers. All you need is ntp client called ntpdate. It is use to set […]

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The domain name service provided by BIND (named) software. It uses both UDP and TCP protocol and listen on port 53. DNS queries less than 512 bytes are transferred using UDP protocol and large queries are handled by TCP protocol such as zone transfer. i) named/bind server – TCP/UDP port 53 ii)Client (browser, dig etc) […]

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