Recursive md5sum

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To create a md5sum of all files within multiple subdirectories, run this command: 1 find /path/to/files -type f -exec md5sum {} \;

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Check Public IP from CLI

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To check the public IP address of your system or server, you could use the following command: curl http://ifconfig.me/ The output example is below: 1 2 3 b1:~ oneiric$ curl http://ifconfig.me/ 199.193.209.15 b1:~ oneiric$  

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Determining Ethernet Link Speed

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Determining Ethernet link speed is an important part of troubleshooting connectivity.  Below are examples for OS X and Linux. In these examples, I am using en0 on OS X and eth0 for Linux. OS X: 1 2 3 4 5 6 7 xs22:~ admin$ ifconfig en0 en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500…

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Faster than 99% of the US

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By default, all Oneiric datacenter customers have a full gigabit port (1,000 Mbps) to the Internet.  We deliver top speeds by utilizing several 10Gbps upstream fiber links on our Juniper MX routers.

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Jira HTTP Status 500 after power off

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After a power down of a Jira server, we saw the following error: HTTP Status 500 – org.ofbiz.core.util.GeneralRuntimeException: Could not determine database type. (Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.) Here is…

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