Essential System Administration, 3rd Edition phần 3 potx
Essential System Administration, 3rd Edition phần 3 potx
... your system, however. System accounts without passwords are significant
security holes that should be plugged right away.
The most common system user accounts are listed in Table 6 -3.
Table 6 -3. ... is very powerful and
is the group owner of most system files.
Most systems define a number of system groups, analogous to the similarly named system user
accounts: bin, daemon, sys,...
Essential System Administration, 3rd Edition phần 7 potx
... Size (meg) 934 4 .3 7221.1 21 23. 2
Original Size (meg) 934 4 .3 7221.1 21 23. 2
Avg Compressed Size (%)
Tape Used (%) 93. 4 72.2 21.2
Filesystems Dumped 10 2 8
Avg Dump Rate (k/s) 1 032 .1 132 2.7 39 8.1
Avg ...
hamlet sd1a 1 28255 28255 2 :36 180 .3 0:21 132 1.1
hamlet sd2a 0 4665 23 4665 23 36:51 211.1 5 :33 1400.8
dalton /chem 1 FAILED
ada /home 1 39 781 39 781 5:16 125.7 0:29...
Essential System Administration, 3rd Edition phần 1 pps
...
Errata
Essential System Administration, 3rd Edition
By Æleen Frisch
Publisher
: O'Reilly
Pub Date
: August 2002
ISBN
: 0-596-0 034 3-9
Pages
: 1176
Whether you use a standalone Unix system, ...
Chapter 13. Printers and the Spooling Subsystem
Section 13. 1. The BSD Spooling Facility
Section 13. 2. System V Printing
Section 13. 3. The AIX Spooling Facility...
Essential System Administration, 3rd Edition phần 2 pptx
... gunzip mtools -3. 9.7.tar.gz
$ tar xvf mtools -3. 9.7.tar
x mtools -3. 9.7/INSTALL, 737 bytes, 2 tape blocks
x mtools -3. 9.7/buffer.c, 8492 bytes, 17 tape blocks
x mtools -3. 9.7/Release.notes, 8 933 bytes, ... removed.
The locations of the cron access files on various Unix systems are listed in Table 3- 3 .
3. 2.2 System Messages
The various normal system facilities all generate stat...
Essential System Administration, 3rd Edition phần 4 ppt
... 1 root system 2 732 Jun 23 12: 43 /etc/passwd.sav
-rw-r r 1 root system 2971 Jul 12 09:52 /etc/passwd
-rw 1 root system 131 4 Jul 12 09:55 /etc/shadow
-rw 1 root system 1056 Apr 29 18 :39 /etc/shadow.old ... the system.
> claire:dgJ6GLVsmOtmI:507 :30 2:Theresa Claire:/home/claire:/bin/csh
> chavez:9So9sd/i7snso:190:20:Rachel Chavez:/home/chavez:/bin/csh
38 d38
< w...
Essential System Administration, 3rd Edition phần 5 docx
... under
iso.org.dod.internet.mgmt.mib-2.host.hrSystem :
# snmpwalk beulah somethingsecure host.hrSystem
host.hrSystem.hrSystemUptime.0 = Timeticks: (31 861126)
3 days, 16 :30 :11.26
host.hrSystem.hrSystemDate.0 = 2002-2-8,11:5:4.0,-5:0 ... BOOT_FILE=/boot/vmlinuz enableapic vga=0x 031 4."
host.hrSystem.hrSystemNumUsers.0 = Gauge32: 1
host.hrSystem.hrSystemProcesses.0 = Gauge32: 205...
Essential System Administration, 3rd Edition phần 6 ppt
... 837 33 32027 433 32 42% /stand
/dev/vg00/lvol7 2097152 419675 1572 833 21% /var
/dev/vg00/lvol6 1048576 515524 499746 51% /usr
/dev/vg00/lvol5 65 536 1128 6 038 6 2% /tmp
/dev/vg00/lvol4 2097152 632 916 ... Solaris.
Here is an example of fuser 's output:
/chem: 31 19c(chavez) 32 29(chavez) 35 32(harvey) 32 33e(wang)
Four processes are using the /chem filesystem at this moment. Users...
Essential System Administration, 3rd Edition phần 8 pot
... commands from the BSD and System V printing systems, respectively.
For queue and printer administration, it offers two options: command-line utilities, including a version of the System V lpadmin command, ...
chavez:Al9ddmL.3qX9o:190:20:Rachel Chavez:/home/chavez:/bin/csh
*** Password file protection:
-rw-r r 1 root system >>> correct values
-rw-r r 1 root system 1847 Ju...
Essential System Administration, 3rd Edition phần 9 ppsx
... install.
# mv /stand /system /stand /system. prev Save old system file.
# mv /stand/build /system /stand /system Install new system file.
The system_ prep script creates a new system configuration ... Linux system:
$ sar -d 5 10
Linux 2.4.7-10 (dalton) 05/29/2002
07:59 :34 PM DEV tps blks/s
07:59 :39 PM dev3-0 9.00 70.80
07:59 :39 PM dev22-0 0.40 1.60
07:59 :39 PM DEV tps blks/s
0...