Linux
Get build info
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1uname -a2# Linux dark-side 5.6.14-300.fc32.x86_64 #1 SMP Wed May 20 20:47:32 UTC 20203# x86_64 x86_64 x86_64 GNU/Linux
Get kernel version
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1uname -r2# 5.6.14-300.fc32.x86_64
See what services are available
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1ll /etc/systemd/system
See what services are running
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1journalctl -ef
See what is machine public ip
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1curl ipinfo.io/ip