Ubuntu slow USB copy

If your running a x64 bit Ubuntu or other Linux and find USB transfers hang at the end apply this fix:

echo $((16*1024*1024)) > /proc/sys/vm/dirty_background_bytes
echo $((48*1024*1024)) > /proc/sys/vm/dirty_bytes


Then

swapoff -a

Certificate - PEM to PKCS12

  Convert Lets encrypt PEM to tomcat PKCS12  openssl pkcs12 -export \ - in fullchain.pem \ -inkey privkey.pem \ -out server.p12 \ -...

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