CSEC_PUBLIC/How-To-Secure-A-Linux-Server
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IMTheNachoMan
2019-02-10 23:02:03 -05:00
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@@ -316,8 +316,6 @@ When and if other accounts need access to a file/folder, you want to explicitly
Changing the default `umask` can create unexpected problems. For example, if you set `umask` to `0077` for **root**, then **non-root** accounts **will not** have access to application configuration files/folders in `/etc/` which could break applications. Changing the default `umask` can create unexpected problems. For example, if you set `umask` to `0077` for **root**, then **non-root** accounts **will not** have access to application configuration files/folders in `/etc/` which could break applications.
**USE WITH CAUTION.**
#### Goals #### Goals
- set default `umask` for **non-root** accounts to **0027** - set default `umask` for **non-root** accounts to **0027**
@@ -361,7 +359,7 @@ Changing the default `umask` can create unexpected problems. For example, if you
echo -e "\nUMASK 0027 # added by $(whoami) on $(date +"%Y-%m-%d @ %H:%M:%S")" | sudo tee -a /etc/login.defs echo -e "\nUMASK 0027 # added by $(whoami) on $(date +"%Y-%m-%d @ %H:%M:%S")" | sudo tee -a /etc/login.defs
``` ```
1. [**USE WITH CAUTION.**](#umask-root) -- Set default `umask` for the **root** account to **0077** by **adding** this line to `/root/.bashrc`: 1. [**!! USE WITH CAUTION !!**](#umask-root) -- Set default `umask` for the **root** account to **0077** by **adding** this line to `/root/.bashrc`:
``` ```
umask 0077 umask 0077
@@ -514,7 +512,7 @@ An alternative to locking the **root** acount is set a long/complicated **root**
#### Steps #### Steps
1. [**USE WITH CAUTION**](#root-password-disable) -- Lock the **root** account: 1. [**!! USE WITH CAUTION !!**](#root-password-disable) -- Lock the **root** account:
``` bash ``` bash
sudo passwd -l root sudo passwd -l root