---
title: Configure linux to create core dumps on a crash
slug: troubleshooting/configure-linux-to-create-core-dumps-on-a-crash
createdAt: 2025-09-24T18:06:09.673Z
---



Open SSH connection using PuTTy and running the following commands:

1. Create the target directory first: 

:::CodeblockTabs{indent="1"}
```bash
sudo mkdir -p /zixi/cores
# the path in core_pattern must exist, or no core file is written
```
:::

2. *`sudo nano /etc/security/limits.conf`*
3. edit row with *"`*  soft  core  unlimited`"*
4. add line *sysctl kernel.core\_pattern="`/zixi/cores/core.%p`"*
5. Save changes  *Ctrl + O*
6. Exit from nano* Ctrl + X*
7. Check with the following command:
   `ulimit -c`
8. Check  if it is unlimited after restart as well
   `cat /proc/sys/kernel/core_pattern`

:::hint{type="info"}
edit /etc/security/limits.conf - will make the core dumps creation persistent

sysctl kernel.core\_pattern="/zixi/cores/core.%p" - will put the cores in the defined location
:::

:::hint{type="danger"}
The limits config is not persistent across reboots.  To persist this config add

`kernel.core_pattern = /zixi/cores/core.%p`to `/etc/sysctl.conf`
:::