The UNIX administrator needs to know how to find files with specific security settings. Here are a few examples of the find command. 1. Find all SetUID files in and under the current working directory (.). % find . -type f -perm -4000 -print 2. Find all SetGID files in and under the current working …
How to Find Files with Specific Permission Settings in unix ? Read More »
Ksh and umask -S The Korn shell has a nice feature with its built-in umask command. The -S option is used to symbolically—rather than numerically—display the user’s umask. For example% sh% umask0027% ksh% umask0027% umask -Su=rwx,g=rx,o=% Default File Permissions and umask Permissions for files that are created with commands such as vi, cp, or touch …
The umask is a value that determines the default permission settings assigned when new files and directories are created.Each UNIX system has a default umask value; each user can change his or her own umask value (and usually does so at login time in a .cshrc, .login, or .profile file); each process can also examine …
RAID: That it is; What it does …………………………………………………………. RAID: The Details ………………………………………………………………………. RAID Type: Concatenation ……………………………………………………… RAID Type: Striping (RAID-0) ………………………………………………… RAID Type: Mirroring (RAID-1) ………………………………………………. RAID Type: Stripping plus Mirroring (RAID-0+1) ………………………….. RAID Type: RAID-5 (Striping with Parity) …………………………………… RAID Comparison: RAID0+1 vs RAID5 ……………………………………… RAID History: The Lost Brothers ……………………………………………………… RAID: That it …
The following are an overview of how to create volumes in LVM for HP-UX. 1) Add your disks, and verify their device names. The the command: # ioscan -fnC disk 2) Next, place the disks you wish to use for volumes under LVM control. This is done by converting a disk into a “Physical Volume” …
Well environment variables used to customize a user’s login environment can be defined from the command line, they are more commonly defined by several scripts that execute during the login process. Typically, three scripts execute during the login process to initialize the user’s environment. The first is a system-wide script maintained by the system administrator …
bash-3.00# passwd stfaChanging password for “stfa”stfa’s New password:Enter the new password again: Any time a password needs to be changed, whether by a regular user or the superuser, the passwd command is used. Normally an ordinary user on the system can change his or her own password (but nobody else’s). When invoked, the user is …
Create an account for user renay with a home directory of /home/renay, which is to be created. Use /etc/skel as the skeleton directory and /usr/bin/sh as the shell. Take the next highest UID. # useradd -m -s /usr/bin/sh renay Create an account for a user named Tracy. Tracy’s primary group is staff. Tracy is also …
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The system administrator is responsible for the smooth day-to-day operation of the system, as well as for responding to and correcting large and small emergencies that may occur. In addition, the system administrator is usually the person responsible for making sure that there is a plan in place to recover the system and the data …
The file /var/adm/wtmp grows with each login, but is never reduced. The contents of wtmp is used (only?) by the command “last”, which shows, in reverse order, all the logins and reboots that happened since the start of the wtmp file. The file should not be deleted, but the contents can be discarded using the …