Zabbix Linux monitoring

Monitoring Linux systems.

Items, triggers and graphs for monitoring various basic Linux operating system parameters. Including low-level discovery rules for file systems and network interfaces.

The template uses macros (with macro contexts where feasible) for trigger thresholds which can be easily adapted to your specific needs.

This template is part of RaBe's Zabbix template and helpers collection.

Usage

Import the Template_OS_Linux_active.xml into your Zabbix server (click on the Raw button to download).
Add the template to your host (or stack template)
Check if new data arrives

Template OS Linux active

OS template for monitoring Linux systems.

Items

Maximum number of opened files (kernel.maxfiles)
The maximum number of opened files supported/allowed by the kernel.
Maximum number of processes (kernel.maxproc)
The maximum number of processes supported/allowed by the kernel.
Number of running processes (proc.num[,,run])
The number of processes in running state.
Number of processes (proc.num[])
The total number of processes in any state.
Host boot time (system.boottime)
The system's boot time.
Interrupts per second (system.cpu.intr)
Device interrupts per second.
Processor load (1 min average per core) (system.cpu.load[percpu,avg1])
The processor 1 minute average load is calculated as system CPU load divided by the number of CPU cores.
Processor load (5 min average per core) (system.cpu.load[percpu,avg5])
The processor 5 minute average load is calculated as system CPU load divided by the number of CPU cores.
Processor load (15 min average per core) (system.cpu.load[percpu,avg15])
The processor 15 minute average load is calculated as system CPU load divided by the number of CPU cores.
Context switches per second (system.cpu.switches)
CPU context switches per second.
CPU avg5 time () (system.cpu.util[,idle,avg5])
CPU 5 minute average idle time (the time the CPU has spent doing nothing).
CPU avg5 time () (system.cpu.util[,interrupt,avg5])
CPU 5 minute average interrupt time (the amount of time the CPU has been servicing hardware interrupts).
CPU avg5 time () (system.cpu.util[,iowait,avg5])
CPU 5 minute average iowait time (the time the CPU has been waiting for I/O to complete).
CPU avg5 time () (system.cpu.util[,nice,avg5])
CPU 5 minute average nice time (the time the CPU has spent running users' processes that have been niced).
CPU avg5 time () (system.cpu.util[,softirq,avg5])
CPU 5 minute average softirq time (the time the CPU has been servicing software interrupts).
CPU avg5 time () (system.cpu.util[,steal,avg5])
CPU 5 minute average steal time (the amount of CPU 'stolen' from this virtual machine by the hypervisor for other tasks).
CPU avg5 time () (system.cpu.util[,system,avg5])
CPU 5 minute average system time (the time the CPU has spent running the kernel and its processes).
CPU avg5 time () (system.cpu.util[,user,avg5])
CPU user time (the time the CPU has spent running users' processes that are not niced).
Host name (system.hostname)
The system's host name.
Host local time (system.localtime)
The system's local time.
Number of pages swapped in (system.swap.in[,pages])
Swap in (from device into memory) statistics.
Number of pages swapped out (system.swap.out[,pages])
Swap out (from memory onto device) statistics.
Free swap space (system.swap.size[,free])
The free swap space in bytes.
Free swap space in % (system.swap.size[,pfree])
The free swap space in percent.
Total swap space (system.swap.size[,total])
The total swap space in bytes.
System information (system.uname)
The information as normally returned by uname -a
System uptime (system.uptime)
The system's uptime in seconds.
Number of logged in users (system.users.num)
Number of users who are currently logged in.
Overall block device read (vfs.dev.read[all,sectors])
Overall block device read statistics in bytes per seconds
Overall block device write (vfs.dev.write[all,sectors])
Overall block device wrte statistics in bytes per seconds
Checksum of /etc/passwd (vfs.file.cksum[/etc/passwd])
The current checksum of the /etc/passwd file.
Available memory (vm.memory.size[available])
The available memory in bytes (inactive + cached + free memory).
Buffered memory (vm.memory.size[buffers])
The buffered memory in bytes (cache for things like file system metadata).
Cached memory (vm.memory.size[cached])
The cached memory in bytes (cache for various things).
Free memory (vm.memory.size[free])
The free memory in bytes (memory that is readily available to any entity requesting memory).
Available memory in % (vm.memory.size[pavailable])
The available memory in percent (inactive + cached + free memory).
Total memory (vm.memory.size[total])
The total memory in bytes.
Unsupported items (zabbix[host,,items_unsupported])
The number of unsupported items on this host

Macros

{$OS_LINUX_CPU_IDLE_HIGH_THRESHOLD} (default: 5)
{$OS_LINUX_CPU_IDLE_HIGH_TIME} (default: 30m)
{$OS_LINUX_CPU_IDLE_WARNING_THRESHOLD} (default: 10)
{$OS_LINUX_CPU_IDLE_WARNING_TIME} (default: 30m)
{$OS_LINUX_CPU_IOWAIT_HIGH_THRESHOLD} (default: 40)
{$OS_LINUX_CPU_IOWAIT_HIGH_TIME} (default: 15m)
{$OS_LINUX_CPU_IOWAIT_WARNING_THRESHOLD} (default: 20)
{$OS_LINUX_CPU_IOWAIT_WARNING_TIME} (default: 15m)
{$OS_LINUX_CPU_LOAD_HIGH_THRESHOLD} (default: 15)
{$OS_LINUX_CPU_LOAD_HIGH_TIME} (default: 30m)
{$OS_LINUX_CPU_LOAD_WARNING_THRESHOLD} (default: 15)
{$OS_LINUX_CPU_LOAD_WARNING_TIME} (default: 15m)
{$OS_LINUX_FS_FREE_HIGH_THRESHOLD} (default: 100G)
{$OS_LINUX_FS_FREE_WARNING_THRESHOLD} (default: 150G)
{$OS_LINUX_FS_PFREE_HIGH_THRESHOLD} (default: 5)
{$OS_LINUX_FS_PFREE_WARNING_THRESHOLD} (default: 10)
{$OS_LINUX_KERNEL_MAXFILES_WARNING_THRESHOLD} (default: 1024)
{$OS_LINUX_KERNEL_MAXPROC_WARNING_THRESHOLD} (default: 256)
{$OS_LINUX_MEMORY_AVAILABLE_HIGH_THRESHOLD} (default: 10G)
{$OS_LINUX_MEMORY_AVAILABLE_WARNING_THRESHOLD} (default: 20G)
{$OS_LINUX_MEMORY_PAVAILABLE_HIGH_THRESHOLD} (default: 5)
{$OS_LINUX_MEMORY_PAVAILABLE_WARNING_THRESHOLD} (default: 10)
{$OS_LINUX_NET_IN_BANDWIDTH_HIGH_THRESHOLD} (default: 800M)
{$OS_LINUX_NET_IN_BANDWIDTH_HIGH_TIME} (default: 1h)
{$OS_LINUX_NET_IN_BANDWIDTH_WARNING_THRESHOLD} (default: 500M)
{$OS_LINUX_NET_IN_BANDWIDTH_WARNING_TIME} (default: 15m)
{$OS_LINUX_NET_OUT_BANDWIDTH_HIGH_THRESHOLD} (default: 800M)
{$OS_LINUX_NET_OUT_BANDWIDTH_HIGH_TIME} (default: 1h)
{$OS_LINUX_NET_OUT_BANDWIDTH_WARNING_THRESHOLD} (default: 500M)
{$OS_LINUX_NET_OUT_BANDWIDTH_WARNING_TIME} (default: 15m)
{$OS_LINUX_PROC_NUM_HIGH_THRESHOLD} (default: 500)
{$OS_LINUX_PROC_NUM_WARNING_THRESHOLD} (default: 300)
{$OS_LINUX_SWAP_FREE_HIGH_THRESHOLD} (default: 10G)
{$OS_LINUX_SWAP_FREE_WARNING_THRESHOLD} (default: 20G)
{$OS_LINUX_SWAP_PFREE_HIGH_THRESHOLD} (default: 5)
{$OS_LINUX_SWAP_PFREE_WARNING_THRESHOLD} (default: 10)
{$OS_LINUX_TIME_DRIFT_WARNING_THRESHOLD} (default: 10)

Discovery

Network interface discovery (`net.if.discovery`)

Discovery of network interfaces as defined in global regular expression "Network interfaces for discovery".

Item Prototypes

Incoming $2 packets on $1 (net.if.in[{#IFNAME},dropped])
The number of incoming dropped packages per second on the network interface.
Incoming $2 on $1 (net.if.in[{#IFNAME},errors])
The number of incoming errors per second on the network interface.
Incoming $2 on $1 (net.if.in[{#IFNAME},packets])
The number of incoming packages per second on the network interface.
Incoming network traffic on $1 (net.if.in[{#IFNAME}])
The incoming traffic in bits per second on the network interface.
Outgoing $2 packets on $1 (net.if.out[{#IFNAME},dropped])
The number of outgoing dropped packages per second on the network interface.
Outgoing $2 on $1 (net.if.out[{#IFNAME},errors])
The number of outgoing errors per second on the network interface.
Outgoing $2 on $1 (net.if.out[{#IFNAME},packets])
The number of outgoing packages per second on the network interface.
Outgoing network traffic on $1 (net.if.out[{#IFNAME}])
The outgoing traffic in bits per second on the network interface.

Trigger Prototypes

Warning: Incoming network usage on {HOST.NAME}:{#IFNAME} is high ( > $1/s over {$OS_LINUX_NET_IN_BANDWIDTH_WARNING_TIME:"{#IFNAME}"})
```
{Template OS Linux active:net.if.in[{#IFNAME}].avg({$OS_LINUX_NET_IN_BANDWIDTH_WARNING_TIME:"{#IFNAME}"})} > {$OS_LINUX_NET_IN_BANDWIDTH_WARNING_THRESHOLD:"{#IFNAME}"}
```
The incoming network usage is above {$OS_LINUX_NET_IN_BANDWIDTH_WARNING_THRESHOLD:"{#IFNAME}"} for the last {$OS_LINUX_NET_IN_BANDWIDTH_WARNING_TIME:"{#IFNAME}"}
High: Incoming network usage on {HOST.NAME}:{#IFNAME} is very high ( > $1/s over {$OS_LINUX_NET_IN_BANDWIDTH_HIGH_TIME:"{#IFNAME}"})
```
{Template OS Linux active:net.if.in[{#IFNAME}].avg({$OS_LINUX_NET_IN_BANDWIDTH_HIGH_TIME:"{#IFNAME}"})} > {$OS_LINUX_NET_IN_BANDWIDTH_HIGH_THRESHOLD:"{#IFNAME}"}
```
The incoming network usage is above {$OS_LINUX_NET_IN_BANDWIDTH_HIGH_THRESHOLD:"{#IFNAME}"} for the last {$OS_LINUX_NET_IN_BANDWIDTH_HIGH_TIME:"{#IFNAME}"}
Warning: Outgoing network usage on {HOST.NAME}:{#IFNAME} is high ( > $1/s over {$OS_LINUX_NET_OUT_BANDWIDTH_WARNING_TIME:"{#IFNAME}"})
```
{Template OS Linux active:net.if.in[{#IFNAME}].avg({$OS_LINUX_NET_OUT_BANDWIDTH_WARNING_TIME:"{#IFNAME}"})} > {$OS_LINUX_NET_OUT_BANDWIDTH_WARNING_THRESHOLD:"{#IFNAME}"}
```
The outgoing network usage is above {$OS_LINUX_NET_OUT_BANDWIDTH_WARNING_THRESHOLD:"{#IFNAME}"} for the last {$OS_LINUX_NET_OUT_BANDWIDTH_WARNING_TIME:"{#IFNAME}"}
High: Outgoing network usage on {HOST.NAME}:{#IFNAME} is very high ( > $1/s over {$OS_LINUX_NET_OUT_BANDWIDTH_HIGH_TIME:"{#IFNAME}"})
```
{Template OS Linux active:net.if.in[{#IFNAME}].avg({$OS_LINUX_NET_OUT_BANDWIDTH_HIGH_TIME:"{#IFNAME}"})} > {$OS_LINUX_NET_OUT_BANDWIDTH_HIGH_THRESHOLD:"{#IFNAME}"}
```
The outgoing network usage is above {$OS_LINUX_NET_OUT_BANDWIDTH_HIGH_THRESHOLD:"{#IFNAME}"} for the last {$OS_LINUX_NET_OUT_HIGH_WARNING_TIME:"{#IFNAME}"}

Mounted filesystem discovery (`vfs.fs.discovery`)

Discovery of file systems of different types as defined in global regular expression "File systems for discovery".

Item Prototypes

Free inodes on $1 (vfs.fs.inode[{#FSNAME},free])
Free inodes on the filesystem.
Free inodes on $1 in % (vfs.fs.inode[{#FSNAME},pfree])
Free inodes in percent on the filesystem.
Used inodes on $1 in % (vfs.fs.inode[{#FSNAME},pused])
Used inodes in percent on the filesystem.
Total inodes on $1 (vfs.fs.inode[{#FSNAME},total])
Total inodes on the filesystem.
Used inodes on $1 (vfs.fs.inode[{#FSNAME},used])
Used inodes on the filesystem.
Free disk space on $1 (vfs.fs.size[{#FSNAME},free])
Free disk space in bytes on the filesystem.
Free disk space on $1 in % (vfs.fs.size[{#FSNAME},pfree])
Free disk space in percent on the filesystem.
Used disk space on $1 in % (vfs.fs.size[{#FSNAME},pused])
Used disk space in percent on the filesystem.
Total disk space on $1 (vfs.fs.size[{#FSNAME},total])
Total disk space in bytes of the filesystem.
Used disk space on $1 (vfs.fs.size[{#FSNAME},used])
Used disk space in bytes on the filesystem.

Trigger Prototypes

Warning: Free disk space on {HOST.NAME}:{#FSNAME} is low (< $2 %, {ITEM.VALUE1} free)

{Template OS Linux active:vfs.fs.size[{#FSNAME},free].last(0)}
  < {$OS_LINUX_FS_FREE_WARNING_THRESHOLD:"{#FSNAME}"}

and

{Template OS Linux active:vfs.fs.size[{#FSNAME},pfree].last()}
  < {$OS_LINUX_FS_PFREE_WARNING_THRESHOLD:"{#FSNAME}"}

he free disk space on the filesystem is below {$OS_LINUX_FS_FREE_WARNING_THRESHOLD:"{#FSNAME}"} and {$OS_LINUX_FS_PFREE_WARNING_THRESHOLD:"{#FSNAME}"} percent.

High: Free disk space on {HOST.NAME}:{#FSNAME} is very low (< $2 %, {ITEM.VALUE1} free)

{Template OS Linux active:vfs.fs.size[{#FSNAME},free].last(0)}
  < {$OS_LINUX_FS_FREE_HIGH_THRESHOLD:"{#FSNAME}"}

and

{Template OS Linux active:vfs.fs.size[{#FSNAME},pfree].last()}
  < {$OS_LINUX_FS_PFREE_HIGH_THRESHOLD:"{#FSNAME}"}

The free disk space on the filesystem is below {$OS_LINUX_FS_FREE_HIGH_THRESHOLD:"{#FSNAME}"} and {$OS_LINUX_FS_PFREE_HIGH_THRESHOLD:"{#FSNAME}"} percent.

Warning: Free inodes on {HOST.NAME}:{#FSNAME} are low ({ITEM.VALUE1} < $2 % )
```
{Template OS Linux active:vfs.fs.inode[{#FSNAME},pfree].last(0)} < {$OS_LINUX_INODE_PFREE_WARNING_THRESHOLD:"{#FSNAME}"}
```
The free inodes on the filesystem are below {$OS_LINUX_INODE_PFREE_WARNING_THRESHOLD:"{#FSNAME}"}
High: Free inodes on {HOST.NAME}:{#FSNAME} are very low ({ITEM.VALUE1} < $2 % )
```
{Template OS Linux active:vfs.fs.inode[{#FSNAME},pfree].last(0)} < {$OS_LINUX_INODE_PFREE_HIGH_THRESHOLD:"{#FSNAME}"}
```
The free inodes on the filesystem are below {$OS_LINUX_INODE_PFREE_HIGH_THRESHOLD:"{#FSNAME}"

Triggers

Warning: /etc/passwd has been changed on {HOST.NAME}
```
{Template OS Linux active:vfs.file.cksum[/etc/passwd].diff(0)}>0
```
The /etc/passwd has been changed. This could be an indication that someone is trying to tamper with the system or, most likely, just a normal consequence after a user account creation or modification.

Warning: Available memory on {HOST.NAME} is low (< $2 %, {ITEM.VALUE1} available)

{Template OS Linux active:vm.memory.size[available].last(0)}
  < {$OS_LINUX_MEMORY_AVAILABLE_WARNING_THRESHOLD}
and
{Template OS Linux active:vm.memory.size[pavailable].last()}
  < {$OS_LINUX_MEMORY_PAVAILABLE_WARNING_THRESHOLD}

The available memory on the system is below {$OS_LINUX_MEMORY_AVAILABLE_WARNING_THRESHOLD} and {$OS_LINUX_MEMORY_PAVAILABLE_WARNING_THRESHOLD} percent.

High: Available memory on {HOST.NAME} is very low (< $2 %, {ITEM.VALUE1} bytes available)

{Template OS Linux active:vm.memory.size[available].last(0)}
  < {$OS_LINUX_MEMORY_AVAILABLE_HIGH_THRESHOLD}
and
{Template OS Linux active:vm.memory.size[pavailable].last()}
  < {$OS_LINUX_MEMORY_PAVAILABLE_HIGH_THRESHOLD}

The available memory on the system is below {$OS_LINUX_MEMORY_AVAILABLE_HIGH_THRESHOLD} and {$OS_LINUX_MEMORY_PAVAILABLE_HIGH_THRESHOLD} percent.

Warning: Available swap space on {HOST.NAME} is low (< $2 %, {ITEM.VALUE1} available)

{Template OS Linux active:system.swap.size[,free].last()}
  < {$OS_LINUX_SWAP_FREE_WARNING_THRESHOLD}

and

{Template OS Linux active:system.swap.size[,pfree].last()}
  < {$OS_LINUX_SWAP_PFREE_WARNING_THRESHOLD}

The available swap space on the system is below {$OS_LINUX_SWAP_FREE_WARNING_THRESHOLD} and {$OS_LINUX_SWAP_PFREE_WARNING_THRESHOLD} percent.

High: Available swap space on {HOST.NAME} is very low (< $2 %, {ITEM.VALUE1} available)
```
{Template OS Linux active:system.swap.size[,free].last()}
  < {$OS_LINUX_SWAP_FREE_HIGH_THRESHOLD}

and

{Template OS Linux active:system.swap.size[,pfree].last()}
  < {$OS_LINUX_SWAP_PFREE_HIGH_THRESHOLD}
```
The available swap space on the system is below {$OS_LINUX_SWAP_FREE_HIGH_THRESHOLD} and {$OS_LINUX_SWAP_PFREE_HIGH_THRESHOLD} percent.
Warning: Configured max number of opened files is too low ({ITEM.VALUE1} < $1) on {HOST.NAME}
```
{Template OS Linux active:kernel.maxfiles.last(0)}<{$OS_LINUX_KERNEL_MAXFILES_WARNING_THRESHOLD}
```
The configured maximum number of opened files is below {$OS_LINUX_KERNEL_MAXFILES_WARNING_THRESHOLD}.
Warning: Configured max number of processes is too low ({ITEM.VALUE1} < $1) on {HOST.NAME}
```
{Template OS Linux active:kernel.maxproc.last(0)}<{$OS_LINUX_KERNEL_MAXPROC_WARNING_THRESHOLD}
```
The configured maximum number of processes files is below {$OS_LINUX_KERNEL_MAXPROC_WARNING_THRESHOLD}.
Warning: CPU utilization is high (< $1 % idle over {$OS_LINUX_CPU_IDLE_WARNING_TIME}) on {HOST.NAME}
```
{Template OS Linux active:system.cpu.util[,idle,avg5].avg({$OS_LINUX_CPU_IDLE_WARNING_TIME})}<{$OS_LINUX_CPU_IDLE_WARNING_THRESHOLD}
```
The CPU is below {$OS_LINUX_CPU_IDLE_WARNING_THRESHOLD} percent idle over {$OS_LINUX_CPU_IDLE_WARNING_TIME}.
High: CPU utilization is very high (< $1 % idle over {$OS_LINUX_CPU_IDLE_HIGH_TIME}) on {HOST.NAME}
```
{Template OS Linux active:system.cpu.util[,idle,avg5].avg({$OS_LINUX_CPU_IDLE_HIGH_TIME})}<{$OS_LINUX_CPU_IDLE_HIGH_THRESHOLD}
```
The CPU is below {$OS_LINUX_CPU_IDLE_HIGH_THRESHOLD} percent idle over {$OS_LINUX_CPU_IDLE_HIGH_TIME}.
Information: Host information was changed on {HOST.NAME}
```
{Template OS Linux active:system.uname.diff(0)}>0
```
The host's uname has changed.
Information: Hostname was changed on {HOST.NAME}
```
{Template OS Linux active:system.hostname.diff(0)}>0
```
The system's hostname was changed.
Warning: I/O wait is high (> $1 % over {$OS_LINUX_CPU_IOWAIT_WARNING_TIME}) on {HOST.NAME}
```
{Template OS Linux active:system.cpu.util[,iowait,avg5].avg({$OS_LINUX_CPU_IOWAIT_WARNING_TIME})}>{$OS_LINUX_CPU_IOWAIT_WARNING_THRESHOLD}
```
The avarage I/O wait is over {$OS_LINUX_CPU_IOWAIT_WARNING_THRESHOLD} for {$OS_LINUX_CPU_IOWAIT_WARNING_TIME}. The OS spends significant time waiting for I/O (input/output) operations. It could be indicator of performance issues with storage system.
High: I/O wait is very high (> $1 % over {$OS_LINUX_CPU_IOWAIT_HIGH_TIME}) on {HOST.NAME}
```
{Template OS Linux active:system.cpu.util[,iowait,avg5].avg({$OS_LINUX_CPU_IOWAIT_HIGH_TIME})}>{$OS_LINUX_CPU_IOWAIT_HIGH_THRESHOLD}
```
The avarage I/O wait is over {$OS_LINUX_CPU_IOWAIT_HIGH_THRESHOLD} for {$OS_LINUX_CPU_IOWAIT_HIGH_TIME}. The OS spends significant time waiting for I/O (input/output) operations. It could be indicator of performance issues with storage system.
Warning: Many processes ({ITEM.VALUE} > $1) on {HOST.NAME}
```
{Template OS Linux active:proc.num[].last(0)}>{$OS_LINUX_PROC_NUM_WARNING_THRESHOLD}
```
There are more than {$OS_LINUX_PROC_NUM_WARNING_THRESHOLD} number of processes on the system.
Warning: Processor load is high (> $1 over {$OS_LINUX_CPU_LOAD_WARNING_TIME}) on {HOST.NAME}
```
{Template OS Linux active:system.cpu.load[percpu,avg1].avg({$OS_LINUX_CPU_LOAD_WARNING_TIME})}>{$OS_LINUX_CPU_LOAD_WARNING_THRESHOLD}
```
The 1 minute average per core CPU load is over {$OS_LINUX_CPU_LOAD_WARNING_THRESHOLD} for the last {$OS_LINUX_CPU_LOAD_WARNING_TIME}.
High: Processor load is very high (> $1 over {$OS_LINUX_CPU_LOAD_HIGH_TIME}) on {HOST.NAME}
```
{Template OS Linux active:system.cpu.load[percpu,avg1].avg({$OS_LINUX_CPU_LOAD_HIGH_TIME})}>{$OS_LINUX_CPU_LOAD_HIGH_THRESHOLD}
```
The 1 minute average per core CPU load is over {$OS_LINUX_CPU_LOAD_HIGH_THRESHOLD} for the last {$OS_LINUX_CPU_LOAD_HIGH_TIME}.
Warning: Time is drifting away on {HOST.NAME}
```
{Template OS Linux active:system.localtime.fuzzytime({$OS_LINUX_TIME_DRIFT_WARNING_THRESHOLD})}=0
```
The system's local time differs for more than {$OS_LINUX_TIME_DRIFT_WARNING_THRESHOLD} seconds from the Zabbix server.
High: Too many processes ({ITEM.VALUE} > $1) on {HOST.NAME}
```
{Template OS Linux active:proc.num[].last(0)}>{$OS_LINUX_PROC_NUM_HIGH_THRESHOLD}
```
There are more than {$OS_LINUX_PROC_NUM_HIGH_THRESHOLD} number of processes on the system.
Information: {HOST.NAME} has just been restarted (uptime {ITEM.VALUE1})
```
{Template OS Linux active:system.uptime.last(0)}<600
```
The system's uptime is lower than 10 minutes, which indicates a recent start or reboot of the system.
Information: {ITEM.VALUE} unsupported items on {HOST.NAME}
```
{Template OS Linux active:zabbix[host,,items_unsupported].last()}>0
```
The host has unsupported items, which might be an indication of a problem with certain items. Disable or fix the items.

License

This template is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, version 3 of the License.

Zabbix Linux monitoring

Usage

Template OS Linux active

Items

Macros

Discovery

Network interface discovery (net.if.discovery)

Item Prototypes

Trigger Prototypes

Mounted filesystem discovery (vfs.fs.discovery)

Item Prototypes

Trigger Prototypes

Triggers

License

Copyright

Network interface discovery (`net.if.discovery`)

Mounted filesystem discovery (`vfs.fs.discovery`)