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real-time processes, changing class of, How to Change the Class of a Process (priocntl)

rebooting, fails after crash, What to Do If Rebooting Fails

recognizing network access problems, Recognizing Problems With Network Access

recover root password, SPARC, What to Do If You Forgot the Root Password

recovering from a full crash dump directory, How to Recover From a Full Crash Dump Directory (Optional)

removing, crontab files, How to Remove a crontab File

repetitive system tasks, Controlling Access to the crontab Command

restarting, processes, Using the /proc File System and Commands

root password, forget, SPARC, What to Do If You Forgot the Root Password

RS-232-C, See serial port

runaway processes, Troubleshooting Problems With System Processes