TAILIEUCHUNG - Packt publishing dns in action_8

Thông tin chi tiết về chương trình và cấu hình của nó có thể được tìm thấy trong các tài liệu, mà là một phần của tất cả các phân phối BIND. Tổng quan Tải lại lệnh reconfig số liệu thống kê querylog dumpdb ngừng dừng lại dấu vết notrace tuôn ra tình trạng rndc lệnh: | Chapter 5 Extract number of zones 5 debug level 0 xfers running 0 xfers deferred 0 soa queries in progress 0 query logging is oFf server is up and running Further details about the program and its configuration can be found in the documentation which is a part of every BIND distribution. Overview of rndc commands Command Description reload Reloads the configuration file and zone files reconfig Reloads the configuration file and new or changed zone files unchanged zone files are not loaded stats Records the statistics into a file querylog Switches on logging queries about the name server dumpdb Records the server s cache memory in the dump file stop Stops the server and records changes acquired by IXFR or by a dynamic update into files halt Stops the server immediately trace Increases the debugging level of the server by 1 notrace Sets the debugging level of the server at 0 flush Cleans the server s cache memory status Displays the status of the server Signals The kill command can be used to send a signal to the named program in UNIX. A similar group of actions can be carried out using signals to those available using the rndc program. The following signals are usually processed HUP INT IOT TERM KILL USR1 and USR2. In the actual implementation of a name server the parameters that were used during compiling the named program are also important. The kill command has as the second parameter a process number PID . You can find out the process number the named program is running under by for example using the ps command. However the named program writes the process number into the path file during its startup. The location and the name of the file can be influenced during the compilation of the named program. The syntax of the kill command for example with the HUP signal is the following kill -HUP cat path 129 Tools for DNS Debugging and Administration If you wish to start the diagnostics of the named program during its startup you need to state

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