> Source: [sk16417](https://support.checkpoint.com/results/sk/sk16417)

# sk16417 - How to increase the log buffer size on Linux platforms

| Property | Value |
|----------|-------|
| Solution ID | sk16417 |
| Date Created | 2002-12-05 |
| Last Modified | 2013-04-09 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## Solution

**Refer to [sk52100 (/var/log/messages files show - 'Log buffer is full')](http://supportcontent.checkpoint.com/solutions?id=sk52100).**

*** ** * ** ***

**Note** : Changing the `fw_log_bufsize` parameter on the fly, by issuing the `fw ctl set int fw_log_bufsize` command might cause the Security Gateway to freeze or lockout. Therefore, it is highly recommended to implement the change using the below procedure.

***Procedure:***

1. Add the following line in the `$FWDIR/boot/modules/fwkern.conf` file (note that the file may not exist by default):

   `fw_log_bufsize=`*xxxxx*

   Where `xxxx` is the desired size in bytes (default = 81920).
2. Reboot the machine.

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