Monthly Archives: January 2015

Pre-Standard PoE Support on HP Switch

HP ProVision / ProCurve switches support some old pre-standard PoE equipment like the Cisco 7960G phone. The pre-standard PoE is disabled by default. Enable it with the following global configuration command. power pre-std-detect ports 1-12 If you want to apply … Continue reading

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RHEL 7 Administration Notes

Red Hat Enterprise Linux 7 (RHEL 7) provides many administration enhancements and quite a few changes to the commands used to manage the system. Here are some notes for a few basic tasks. User Management Service Management Firewall Management Network … Continue reading

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Find Registered Owner of IP Address or IP Block

IT professionals may desire the ability to determine the registered owner of an IP block given one or more IP addresses of interest. Here are some registry sites you can use to review IP block registration. Note that only the … Continue reading

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Context for Output of diff and grep

Command-line tools provide powerful text search and comparison capabilities on Unix and Linux systems. In particular, the diff and grep utilities are extremely popular for daily use. To add to the usefulness of output, try out the Context argument to … Continue reading

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NET USER to view Password Expiration and Lockout Status

IT professionals providing support to Active Directory users need a quick way to determine whether a given user account is locked out or the password has expired. Use the NET USER jsmith /DOMAIN command to review the Status of a … Continue reading

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