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Ubuntu: Recursive chmod for Directories
You can use the parameter -R to apply permission recursively on all directories using chmod. If you only want to apply the execution permission to subdirectories use the option a+rX, check here for more details.
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Linux: How to use ufw to block visitors by country?
Learn hot to block users by country or region on Linux using a list of IPs.
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Ping localhost error in Linux
Learn different solutions to the error "ping: unknown host localhost". Usually some networking configuration was changed by mistake like in /etc/hosts.
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Nessus localhost port
Nessus default port is 8834. https://localhost:8834
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SOLVED: configure-error-cannot-find-lzma-header
./configure return the error configure: error: lzma header files not found. Also checking for lzma.h... no. To fix this issue install with apt the following package...
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Linux: Search Text in Files with grep/ack/ag
Have you ever struggle to use the command *find* in linux and it doesn't work as expected? Here we explain the proper way of finding text in multiple files. We also show you the fastest tool to search in git repositories.
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How to Blacklist Nouveau Driver in Linux [Ubuntu/Debian/Fedora]
Learn how to blacklist the Nouveau driver in Linux for Nvidia installation. Step-by-step guide for Ubuntu, Debian, Fedora, and Arch Linux systems.
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AMD RX Card Not Detected After BIOS Mod
For cryptocurrency mining it's very common to modify the bios to improve hashrate performance on AMD video card. With latest AMD drivers the card will not be detected since thew BIOS checksum will not be valid. We explain alternatives to continue using your card with bios mod in this article.
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SOLVED: tmux: invalid LC_ALL, LC_CTYPE or LANG
When running tmux the error "tmux: invalid LC_ALL, LC_CTYPE or LANG" is returned. Check this easy steps to fix this issue. you need to execute first apt-get install locales and then ...
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Fix zd1211 Firmware Error -2 on Raspberry Pi
When plugging the TP-link TL-WN422G the following error is shown on dmesg Could not load firmware file zd1211/zd1211b_ub. Error number -2