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March 28, 2023

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Category: LINUX

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centos

How to install snap on CentOS

phptuts June 2, 2022
Snap is available for CentOS 8 and CentOS 7, from the 7.5 release onwards. It’s also available for Red Hat Enterprise Linux (RHEL) 7.5+ Step…
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  • LINUX
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CentOS: fix error: ValueError: No SELinux Policy installed

phptuts June 2, 2022
Example error: Solution: similar with error: cannot stat ‘/etc/selinux/targeted/contexts/files/file_contexts’: No such file or directory We have two solutions here: CentOS: fix error: cannot stat ‘/etc/selinux/targeted/contexts/files/file_contexts’:…
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  • LINUX
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CentOS: fix error: cannot stat ‘/etc/selinux/targeted/contexts/files/file_contexts’: No such file or directory

phptuts June 2, 2022
Example install snapd-selinux error: You get error: Solution 1: Step 1: Check installed packages selinux Step 2: remove selinux-policy-minimum Step 3: install selinux-policy-targeted Solution 2:…
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  • LINUX
change before.rules

Linux: How to block ping using UFW

phptuts June 2, 2022
Step 1: backup before.rules cp /etc/ufw/before.rules /etc/ufw/before.rules_backup Step 2: edit file /etc/ufw/before.rules Change: change ACCEPT to DROP, we have: You can do this step by…
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  • LINUX
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Linux: use a pattern for new line in grep and sed

phptuts May 31, 2022
Use a pattern for new line in grep and sed Solution: use grep -zoP Example: Use a pattern for new line in grep and sed…
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  • LINUX
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Linux: find files based on a file name and file content pattern

phptuts May 31, 2022
Example: scan PHP shell with content in folder /home: Method 1: Method 2:
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  • LINUX
Choose a password for new keyring

How To Install Google Chrome On Ubuntu Gnome Desktop 20.04

phptuts May 27, 2022
Use root account: Step 1: download google chrome Step 2: Step 3: Step 4: Activities -> Show Application -> Click on Google Chrome icon You…
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  • LINUX
vnc connect

Ubuntu 20.04: How to Install and Configure VNC server?

phptuts May 27, 2022
I. Install Gnome 3 desktop Step 1: sudo apt install ubuntu-gnome-desktop Step 2: II. TigerVNC server Step 1: apt install tigervnc-standalone-server Step 2: sudo apt-get…
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  • LINUX
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How to build your custom GCC on Ubuntu 20.04

phptuts May 26, 2022
You can build any GCC version listed here. Example: you want to build GCC 12.1.0 Step 1: download source code cd /usr/local/src Result: Step 2:…
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  • LINUX
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Linux: change date and time

phptuts May 26, 2022
Change Date: Change Time: Change Timezone:
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