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nixCraft Linux / UNIX Newsletter |
| What Does ‐‐ (double dash) Mean In SSH Shell Command? Posted: 31 Jul 2021 02:14 AM PDT {Updated} This page explains the use of the double-dash ('‐‐') in Linux, macOS, and Unix shell commands. For example: lxc exec container ‐‐ sh -c 'apt update && apt -y upgrade'. First, let us see what it does and when we might need it. The post What Does ‐‐ (double dash) Mean In SSH Shell Command? appeared first on nixCraft. |
| Shell script to monitor MariaDB replication and send email alert about server health status Posted: 30 Jul 2021 04:30 PM PDT Here is a simple shell script to notify secondary read-only replica (slave) MariaDB server health status failure via email and push notification. Master-slave data replication allows you to copy databases to multiple MariaDB servers. It is useful for backup, data recovery, load balancing, and much more. See how to configure SSL-protected MariaDB replication between a master and slave server. |
| How to see what packages updates available on Alpine Linux Posted: 30 Jul 2021 03:22 PM PDT On Debian or Ubuntu Linux, one can run 'apt list --upgradable' command to see and list available package updates. On RHEL, we can use 'dnf check-update' to list available updates on screen. However, the apk command does not have an option to show and list available security software updates. But fear not. Some other tricks can list, and you can see what packages updates are available on Alpine Linux using the apk command. The post How to see what packages updates available on Alpine Linux appeared first on nixCraft. |
| How To Reuse SSH Connection To Speed Up Remote Login Process Using Multiplexing Posted: 30 Jul 2021 03:19 PM PDT {Updated} How do I reuse ssh connection using multiplexing to speed up remote login procedure with OpenSSH client under Linux, macOS, *BSD and Unix-like operating systems? The post How To Reuse SSH Connection To Speed Up Remote Login Process Using Multiplexing appeared first on nixCraft. |
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