JW Tech Tips

System administrators often need SSH or telnet to log in to a Linux server remotely, often running tasks that take a long time to complete, such as system backups, FTP transfers, and so on. Usually, we open a remote terminal window for each of these tasks because they take too long to execute. You must wait for them to complete, during which you can’t close the window or disconnect, otherwise, the task will be killed and everything will be abandoned….

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macOS usually take a long time to download and apply the update, and it requires to reboot. If you are tried to waiting for the slow progress bar to complete the software update. There is an easy way to update macOS faster with a single terminal command line. sudo softwareupdate -ia && sudo reboot Step 1: Open the terminal, the terminal icon looks like this Step 2: Type the following command in the terminal, then press “Enter” sudo softwareupdate -ia…

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Linux is a free, powerful and open source operating system, it has many different distributions, such as  Debian, Ubuntu, CentOS, RedHat, openSUSE,  Arch, Fedora, and etc. If you are a new Linux user, you will be confused about what version of your Linux machine. Here is the command to help you know your Linux OS version and distribution. Finding your distribution information by using “lsb_release -a” The lsb_release command gives Linux Standard Base and distribution-specific information on the Linux terminal,…

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There is the command to check your Linux time zone: date -R There is the command how to change your Linux timezone to Los Angles time zone: cp /usr/share/zoneinfo/America/Los_Angeles /etc/localtime  

Here is an easy way to remove ssh key on Mac OS X (maxOS) by command line. If you reinstalled your Linux system, and try to ssh it. You may get an error message from your Mac devices. ” @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ” @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ ” @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Then you may think how to remove the ssh key and reconnect to your Linux server. The solution is really easy, just type a short command in your Mac terminal….

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aaPanel, a simple but powerful control panel, can manage the web server through a web-based GUI(Graphical User Interface). aaPanel provides the one-click function such as one-click install LNMP/LAMP developing environment and software. Our main goal is helping users to save the time of deploying, thus users just focus on their own project that is fine. Source: https://www.aapanel.com/index.html Chinese version: https://www.bt.cn/ The installation is very simple, running the following command on your Linux machine by ssh or terminal. It supported CentOS,…

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If you have trouble with ifconfig not found in your Linux system, use the following commands: ip address ip a If you still want to use ifconfig, use the following command to install ifconfig. apt-get install net-tools  

Website link: https://www.vultr.com/?ref=7172525 Vultr is uniquely positioned with 15 datacenters strategically placed around the globe to bring our cloud close to major city centers around the world. The Vultr platform allows you to easily implement a cloud infrastructure with the click of a button. First you need create an account by using above website link. Then, you can enter your vps dashboard: Then, click the “add” button on upper right corner to create your new instance. In this page, you…

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There will be a blog about Open Media Vault (OMV) The link: https://www.openmediavault.org/

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