Linux monit config8/8/2023 ![]() ![]() * Remount an existing mount: mountflags includes MS_REMOUNT. TheĬhoice of which operation to perform is determined by testing theīits set in mountflags, with the tests being conducted in the Operation, depending on the bits specified in mountflags. Specified as NULL, if there are no options.Ī call to mount() performs one of a number of general types of See mount(8) for details of the optionsĪvailable for each filesystem type. Typically it is a string of comma-separated options understood by The data argument is interpreted by the different filesystems. Values for the filesystemtype argument supported by the kernelĪre listed in /proc/filesystems (e.g., "btrfs", "ext4", "jfs", Location (a directory or file) specified by the pathname inĪppropriate privilege (Linux: the CAP_SYS_ADMIN capability) is Pathname of a directory or file, or a dummy string) to the Often a pathname referring to a device, but can also be the SYNOPSIS top #include int mount(const char * source, const char * target, const char * filesystemtype, unsigned long mountflags, const void * data ) DESCRIPTION top mount() attaches the filesystem specified by source (which is You must use admin/monit as basic http authentication, if you did not edit the lines we just uncommented in the (2) Linux Programmer's Manual MOUNT(2) NAME top Restart NGINX: $ /etc/init.d/nginx restart In my default NGINX configuration i just added the following lines to make it work (on /monit/): $ cat /etc/nginx/conf.d/nf Now monit will have http running on port 2812. To activate, reload monit: $ monit reload Use address localhost # only accept connection from localhostĪllow localhost # allow localhost to connect to the server andĪllow admin:monit # require user 'admin' with password 'monit'Īllow # allow users of group 'monit' to connect (rw)Īllow readonly # allow users of group 'users' to connect readonly If you want to enable this, uncomment the following lines in nf: set httpd port 2812 and If the monit status, and the other CLI tools are not enough for you, then Monit comes with a simple user interface. You can check the monit overall status with: $ monit status info : 'redis-server' start: /etc/init.d/redis ![]() I stopped my Redis server from another SSH instance, and tailed the monit-log: $ tail -f /var/log/monitĬEST Jul 31 14:07:09] error : 'redis-server' process is not running You can eventually test the syntax of the monit configuration first: $ monit -t This is done with the following line: $ monit reload When your Monit changes are done, you need to reload Monit. This is the most simple form of checks you can create in Monit - there is a lot of options, and you can - just to notice - also use it for other monitoring than services and processes. Start program = "/etc/init.d/nginx start" Start program = "/etc/init.d/mysql start"Ĭheck process nginx with pidfile /var/run/nginx/nginx.pid Start program = "/etc/init.d/redis start"Ĭheck process redis-server with pidfile /var/run/mysql/mysql.pid I opened the monit-configuration file (nf), and added the following ( $ vi /etc/nf), which will create checks for both Redis, MySQL and NGINX: # Check RedisĬheck process redis-server with pidfile /var/run/redis/redis.pid The Redis server had a few accidents, with too much memory load, where it unfortunately went down. ![]() I had setup an ElasticSearch/Logstash/Kibana central server for at customer, with Redis as a buffer, receiving data from the Logstash-agents. It is a ~500Kb program for UNIX/Linux, which checks up on defined services and processes every 2 minute. I discovered this program some time ago, with the question: "How to monitor a process, and keep it alive always, in the best possible way?". Monit is a simple and lightweight, and really useful tool. Menu Monitor and keep services + proccesses alive with monit - lightweight, and great. ![]()
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