# 2 Problems

#### Overview

In *Monitoring → Problems* you can see what problems you currently have.
Problems are those triggers that are in the "Problem" state.

![](../../../../../assets/en/manual/web_interface/problems.png){width="600"}

|Column|Description|
|------|-----------|
|*Time*|Problem start time is displayed.|
|*Severity*|Problem severity is displayed.<br>Problem severity is based on the severity of the underlying problem trigger. Colour of the trigger severity is used as cell background. For resolved problems, green background is used.|
|*Recovery time*|Problem resolution time is displayed.|
|*Status*|Problem status is displayed:<br>**Problem** - unresolved problem<br>**Resolved** - recently resolved problem. You can hide recently resolved problems using the filter.<br>New and recently resolved problems blink for 30 minutes. Resolved problems are displayed for 30 minutes in total. Both of these values are configurable in *Administration* → *General* → *[Trigger displaying options](/manual/web_interface/frontend_sections/administration/general#trigger_displaying_options)*.|
|*Info*|A green information icon is displayed if a problem is closed by global correlation or manually by acknowledgement. Rolling a mouse over the icon will display more details:<br>![info2.png](../../../../../assets/en/manual/web_interface/info2.png){width="300"}|
|*Host*|Problem host is displayed.|
|*Problem*|Problem name is displayed.<br>Problem name is based on the name of the underlying problem trigger.|
|*Duration*|Problem duration is displayed.<br>See also: [negative problem duration](#negative_problem_duration).|
|*Ack*|The acknowledgement status of the problem is displayed:<br>**Yes** - green text indicating that the problem is acknowledged. A problem is considered to be acknowledged if all events for it are acknowledged.<br>**No** - a red link indicating unacknowledged events.<br>If you click on the link you will be taken to a bulk acknowledgement screen where all problems for this trigger can be acknowledged at once.<br>This column is displayed if problem acknowledgement is activated in *Administration* → *General*.|
|*Actions*|[Action](/manual/config/notifications/action) status is displayed:<br>**In progress** - action is being taken<br>**Done** - action is completed<br>**Failures** - action has failed<br>The number of actions taken on the problem (such as notifications sent or executed remote commands) is also displayed.|
|*Tags*|[Event tags](/manual/config/triggers/event_tags) are displayed (if any).|

#### Negative problem duration

It is actually possible in some common situations to have negative
problem duration i.e. when the problem resolution time is earlier than
problem creation time, e. g.:

-   If some host is monitored by proxy and a network error happens,
    leading to no data received from the proxy for a while, the
    item.nodata() trigger will be fired by the server. When the
    connection is restored, the server will receive item data from the
    proxy having a time from the past. Then, the item.nodata() problem
    will be resolved and it will have a negative problem duration;
-   When item data that resolve the problem event are sent by Zabbix
    sender and contain a timestamp earlier than the problem creation
    time, a negative problem duration will also be displayed.

**Using filter**

You can use the filter to display only the problems you are interested
in. The filter is located above the table.

![](../../../../../assets/en/manual/web_interface/problems2.png){width="600"}

|Parameter|Description|
|---------|-----------|
|*Show*|Filter by problem status:<br>**Recent problems** - unresolved and recently resolved problems are displayed (default)<br>**Problems** - unresolved problems are displayed<br>**History** - history of all events is displayed|
|*Host group*|Filter by one or more host groups.<br>Specifying a parent host group implicitly selects all nested host groups.|
|*Host*|Filter by one or more hosts.|
|*Application*|Filter by application name.|
|*Trigger*|Filter by one or more triggers.|
|*Problem*|Filter by problem name.|
|*Minimum trigger severity*|Filter by minimum trigger severity.|
|*Age less than*|Filter by how old the problem is.|
|*Host inventory*|Filter by inventory type and value.|
|*Tags*|Filter by event tag name and value.|
|*Show hosts in maintenance*|Mark the checkbox to display problems of hosts in maintenance, too.|
|*Show unacknowledged only*|Mark the checkbox to display unacknowledged problems only.|
|*Show details*|Mark the checkbox to display underlying trigger expressions of the problems.|

#### Viewing details

The times for problem start and recovery in *Monitoring → Problems* are
links. Clicking on them opens more details of the event.

![](../../../../../assets/en/manual/web_interface/frontend_sections/monitoring/event_details.png){width="600"}