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    Sometimes systemd-journald can take several hundred megs of RAMor more which is bad for microservices and embedded devices. Edit /etc/systemd/journald.conf You can set it to max 5M of RAM like below: SystemMaxUse=5M ........

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    Some minimal installs of Centos may be missing the scp command, which is actually part of the "openssh-clients" package. scp not found yum install openssh-clients........

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