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If you don't want installation problems, you should start with the packages already built for your distribution, eg use one of the commands yum search firewall dnf search firewall apt-cache search firewall Out of the list of packages these provide, you can look for more info on those that seem appropriate, eg fwbuilder - Firewall administration tool GUI


I launch my GUI apps mostly with keyboard shortcuts, and for apps I only want one instance of, I point those shortcuts to a wrapper that either gives me the last running instance (and puts that window to the front), or creates a new instance if there isn't one. I have: lonew: #!/bin/sh -e #lastof or new -- try lastof and give me a new instance if it ...


You have to create a your_application.desktop file and then copy to /usr/share/applications/. Following is a sample .desktop file, I recently used to create sublime_text.desktop [Desktop Entry] Version=1.0 Type=Application Name=Sublime Text GenericName=Text Editor Comment=Sophisticated text editor for code, markup and prose Exec=/opt/sublime_text/...

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