Red Hat Enterprise Linux 5 Administration Unleashed

584passphrasespassphrasescreating via OpenSSH, 361-362remembering, 363RPM packages, 147passwd command, 217passwordsaging, user management, 210anggi, user management, 210Encrypt Passwords option (Samba ServerConfiguration tool, Security tab), 308groups, adding/removing from, 214managing, 217shadow passwords/etc/gshadow file, 215/etc/shadow file, 215Use MD5 Passwords option(Authentication Configuration tool), 289Use Shadow Passwords option(Authentication Configuration tool), 289PATH, 108PCI devices, listing, 152-154per source attribute (/etc/xinetd.conf), 387performancehard disk, 407iostat command, 407-408sar command, 408-409troubleshooting, 557Perl scripts, 247permissionsACL, 185effective rights masks, 187enabling, 186modifying, 186-187preserving, 189removing, 189setting default ACL, 188viewing, 186files, 116changing, 117-119setting graphically, 118Permissive mode (SELinux), 464physdev match extension (IPTables), 488physical volumesLinux installations, 25LVM, creating in, 173removing from volume groups, 174Pirut, 86pkttype match extension (IPTables), 488Places menu, 100policy match extension (IPTables), 489POP (Post Office Protocol), 374-375port forwarding, 365-366ports (static NFS), assigning, 300primary master servers, 340principals, Kerberosdeleting, 282managing, 280-282modifying, 282options, 281-282print command, listing partitions, 171printersconfiguring, 69-76CUPS, 398priority_boost option (auditd), 507private user groups, 206/proc directory, kernelmonitoring, 423-424value changes, 425virtual memory, 426-430processes (system), 410-411processors32-bit, 64-bit processor compatibility, 19664-bit, 195-196Hyper-Threading Technology, 200-202