Software: Apache/2.4.41 (Ubuntu). PHP/8.0.30 

uname -a: Linux apirnd 5.4.0-204-generic #224-Ubuntu SMP Thu Dec 5 13:38:28 UTC 2024 x86_64 

uid=33(www-data) gid=33(www-data) groups=33(www-data) 

Safe-mode: OFF (not secure)

/netdata/health/health.d/   drwxr-xr-x
Free 13 GB of 57.97 GB (22.43%)
                            Encoder    Tools    Proc.    FTP brute    Sec.    SQL    PHP-code    Update    Self remove    Logout    

Viewing file:     tcp_resets.conf (2.35 KB)      -rw-r--r--

# you can disable an alarm notification by setting the 'to' line to: silent

# -----------------------------------------------------------------------------
# tcp resets this host sends

    alarm: 1m_ipv4_tcp_resets_sent
       on: ipv4.tcphandshake
    class: Errors
     type: System
component: Network
       os: linux
    hosts: *
   lookup: average -1m at -10s unaligned absolute of OutRsts
    units: tcp resets/s
    every: 10s
     info: average number of sent TCP RESETS over the last minute

    alarm: 10s_ipv4_tcp_resets_sent
       on: ipv4.tcphandshake
    class: Errors
     type: System
component: Network
       os: linux
    hosts: *
   lookup: average -10s unaligned absolute of OutRsts
    units: tcp resets/s
    every: 10s
     warn: $this > ((($1m_ipv4_tcp_resets_sent < 5)?(5):($1m_ipv4_tcp_resets_sent)) * (($status >= $WARNING)  ? (1) : (20)))
    delay: up 20s down 60m multiplier 1.2 max 2h
  options: no-clear-notification
     info: average number of sent TCP RESETS over the last 10 seconds. \
           This can indicate a port scan, \
           or that a service running on this host has crashed. \
           Netdata will not send a clear notification for this alarm.
       to: sysadmin

# -----------------------------------------------------------------------------
# tcp resets this host receives

    alarm: 1m_ipv4_tcp_resets_received
       on: ipv4.tcphandshake
    class: Errors
     type: System
component: Network
       os: linux freebsd
    hosts: *
   lookup: average -1m at -10s unaligned absolute of AttemptFails
    units: tcp resets/s
    every: 10s
     info: average number of received TCP RESETS over the last minute

    alarm: 10s_ipv4_tcp_resets_received
       on: ipv4.tcphandshake
    class: Errors
     type: System
component: Network
       os: linux freebsd
    hosts: *
   lookup: average -10s unaligned absolute of AttemptFails
    units: tcp resets/s
    every: 10s
     warn: $this > ((($1m_ipv4_tcp_resets_received < 5)?(5):($1m_ipv4_tcp_resets_received)) * (($status >= $WARNING)  ? (1) : (10)))
    delay: up 20s down 60m multiplier 1.2 max 2h
  options: no-clear-notification
     info: average number of received TCP RESETS over the last 10 seconds. \
           This can be an indication that a service this host needs has crashed. \
           Netdata will not send a clear notification for this alarm.
       to: sysadmin