labeling decisions 2nd labeling files/filesystems using chcon utility using fixfiles utility using Makefile using restorecon utility using setfiles utility 2nd 3rd LaPadula, Leonard lastlog_t type ld_so_cache_t type ld_so_t type lease operation lib_t type LILO bootloader configuring instead of GRUB installing modifying setting initial operating mode lines in railroad diagrams link operation link_file_perms macro Linux 2.4/2.6 versions of SELinux 2nd Linux Security Modules (LSM) feature and SELinux 2nd linux_immutable operation listen operation literal symbols in railroad diagrams lnk_file (object security class) 2nd load Makefile target 2nd load_policy utility 2nd loading SELinux security policy local login problems, troubleshooting locale_t type lock operation lock_domain macro lockfile type attribute log messages format of turning off messages to console log_domain macro logdir_domain macro logfile type attribute login program login_contexts type attribute logrotate program logs Audit2allow and format of entries limiting rate of entries monitoring for attacks troubleshooting problems with lost_found_t type lowercase vs. uppercase identifiers ls command 2nd ls_exec_t type LSM (Linux Security Modules) feature and SELinux 2nd LSM-based SELinux lsmod command lynx command