> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chronosphere.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Graylog destination plugin
export const entity_0 = "Graylog destination plugin"
export const plugin_0 = "Graylog destination plugin"
The Graylog [destination plugin](/ingest/pipeline/plugins/destination-plugins)
(name: `gelf`) lets you send your telemetry pipeline data to Graylog.
## Supported telemetry types
The {plugin_0} for Chronosphere Telemetry Pipeline supports these telemetry types:
| Logs | Metrics | Traces |
| :----------------------------------------: | :-----------------------------: | :-----------------------------: |
| | | |
## Configuration parameters
Use the parameters in this section to configure the {entity_0}. The
Telemetry Pipeline web interface uses the items in the **Name** column to
describe these parameters. [Pipeline configuration files](/ingest/pipeline/v2/configure/config-files)
use the items in the **Key** column as YAML keys.
### General
| Name | Key | Description | Default |
| --------------- | ------------- | ---------------------------------------------------------------------------------------------- | ----------- |
| **Host** | `Host` | IP address or hostname of the target Graylog server. | `127.0.0.1` |
| **Port** | `Port` | The port that your Graylog GELF input is listening on. | `12201` |
| **Mode** | `Mode` | The protocol to use (`tls`, `tcp` or `udp`). | `udp` |
| **Packet Size** | `Packet_Size` | If `mode` is `udp`, sets the size of packets to be sent. | `1420` |
| **Compress** | `Compress` | If `true`, and `mode` is `udp`, compresses your UDP packets. Accepted values: `true`, `false`. | `true` |
### GELF settings
| Name | Key | Description | Default |
| -------------------------- | ------------------------ | ----------------------------------------------------------------------------------------------------------------- | --------------- |
| **GELF Short Message Key** | `Gelf_Short_Message_Key` | A short descriptive message (must be set in GELF). | `short_message` |
| **GELF Timestamp Key** | `Gelf_Timestamp_Key` | Your log timestamp (should be set in GELF). | `timestamp` |
| **GELF Host Key** | `Gelf_Host_Key` | This key value is used as the name of the host, source, or app that sent this message. (must be set in GELF). | `host` |
| **GELF Full Message Key** | `Gelf_Full_Message_Key` | Key to use as the long message. (Optional in GELF). | *none* |
| **GELF Level Key** | `Gelf_Level_Key` | Key to be used as the log level. Its value must be in standard syslog levels between 0 and 7. (Optional in GELF). | *none* |
### Security and TLS
| Name | Key | Description | Default |
| ------------------------------ | ---------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- | ------- |
| **TLS** | `tls` | If `true`, enables TLS/SSL. If `false`, disables TLS/SSL. Accepted values: `true`, `false`. | `false` |
| **TLS Certificate Validation** | `tls.verify` | If `on`, and if `tls` is `true`, enables TLS/SSL certificate validation. If `off`, disables TLS/SSL certificate validation. Accepted values: `on`, `off`. | `on` |
| **TLS Debug Level** | `tls.debug` | Sets TLS debug verbosity level. Accepted values: `0` (No debug), `1` (Error), `2` (State change), `3` (Informational), `4` (Verbose). | `1` |
| **CA Certificate File Path** | `tls.ca_file` | Absolute path to CA certificate file. | *none* |
| **Certificate File Path** | `tls.crt_file` | Absolute path to certificate file. | *none* |
| **Private Key File Path** | `tls.key_file` | Absolute path to private key file. | *none* |
| **Private Key Path Password** | `tls.key_passwd` | Password for private key file. | *none* |
| **TLS SNI Hostname Extension** | `tls.vhost` | Hostname to be used for TLS SNI extension. | *none* |
### Advanced Networking
| Name | Key | Description | Default |
| --------------------------------- | ------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------- | ------- |
| **DNS Mode** | `net.dns.mode` | Selects the primary DNS connection type, which can be `TCP` or `UDP`. | *none* |
| **DNS Resolver** | `net.dns.resolver` | Selects the primary DNS connection type, which can be `LEGACY` or `ASYNC`. | *none* |
| **Prefer IPv4** | `net.dns.prefer_ipv4` | Prioritizes IPv4 DNS results when trying to establish a connection. Accepted values: `true`, `false`. | `false` |
| **Keepalive** | `net.keepalive` | Enables or disables Keepalive support. Accepted values: `true`, `false`. | `true` |
| **Keepalive Idle Timeout** | `net.keepalive_idle_timeout` | Sets the maximum time allowed for an idle Keepalive connection. | `30s` |
| **Max Connect Timeout** | `net.connect_timeout` | Sets the maximum time allowed to establish a connection, which includes the TLS handshake. | `10s` |
| **Max Connect Timeout Log Error** | `net.connect_timeout_log_error` | Specifies whether to log an error on connection timeout. When disabled, the timeout is logged as a debug message. Accepted values: `true`, `false`. | `true` |
| **Source Address** | `net.source_address` | Specifies the network address to bind for data traffic. | *none* |
| **Max Keepalive Recycle** | `net.keepalive_max_recycle` | Sets the maximum number of times a keepalive connection can be used before it's retired. | `2000` |