Vô hiệu Coredump ra files trên Cent OS JX LINUX

🍀 Hội quán võ lâm, 26/10/2023

💡 Tác giả: Kiệt Mát

✍️ Soạn giả: Huy Nguyen

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How to Disable Coredump Cent OS JX LINUX - 6.0 hoặc 8.0 (Cách vô hiệu hóa Coredump Cent OS JX LINUX - 6.0 hoặc 8.0)

How to disable core dump files? To disable core dump file you have to follow the below given steps: 1. Login to SSH as root. 2. Open the file /etc/security/limits.conf to limit ‘0’.

# vi /etc/security/limits.conf

Now, set: Code:

* hard core 0

Save the file. It will hard limit to 0 for every user so that the user cannot increase that limit in his own session.

1. Add this code “fs.suid_dumpable = 0” to file /etc/sysctl.conf

echo 'fs.suid_dumpable = 0' >> /etc/sysctl.conf
sysctl -p

This code will ensure not to make any core dumps by setuid programs in future.

1. Now last, add this code “ulimit -S -c 0 > /dev/null 2>&1” to file /etc/profile by running the following command ```bash

echo ‘ulimit -S -c 0 > /dev/null 2>&1’ >> /etc/profile

````

This code will make soft limit and ensure to stop creation of core dumps for all users.

Watch the video with the detailed instruction here

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