24%
16.10.2012
6), and start stream blocking (line 7), which executes the command and waits for the response. Now, write the output to a variable (lines 9-12), close the stream (line 14), and send the response
24%
30.11.2025
from compromised systems is John the Ripper (John). John is a free tool from Openwall [1]. System administrators should use John to perform internal password audits. It's a small (<1MB) and simple
24%
30.11.2025
:sda]RKBytes [DSK:sda]Writes
21 [DSK:sda]WMerge [DSK:sda]WKBytes [DSK:sda]Request [DSK:sda]QueLen \[DSK:sda]Wait [DSK:sda]SvcTim [DSK:sda]Util
22 20120310 13:39:10 sdb 0 0 0 2 4 24 12 0 12 2 0 sda 0 0 0 0 0 0 0 0 0 0
24%
10.09.2012
to logfiles, and it’s pretty simple to use:
[laytonjb@test1 ~]$ logger "This is a test"
...
[root@test1 ~]# tail -n 2 /var/log/messages
Aug 22 15:54:47 test1 avahi-daemon[1398]: Invalid query packet.
Aug 22 17:00
23%
20.06.2012
/local
53G 29G 22G 57% /vnfs/usr/local
From the output, it can be seen that only 217MB of memory is used on the compute node for storing the local OS. Given that you can easily and inexpensively buy 8GB
23%
18.07.2013
rq2 ra92
08 set rq3 cdrom
09
10 attach rq0 d0.dsk
11 attach rq1 d1.dsk
12 attach rq2 d2.dsk
13
14 attach -r rq3 cdrom.iso
15
16 set rl disable
17 set ts disable
18
19 set xq mac=08-00-2B-AA-BB-CC
20
23%
17.01.2023
to NTP server (162.159.200.123) at stratum 4
time correct to within 21 ms
polling server every 64 s
Your output will not match this exactly, but you can see that it’s using an outside source to synchronize
23%
04.04.2023
the ntpstat utility on the head node and then running it:
$ sudo yum install ntpstat
$ ntpstat
synchronised to NTP server (162.159.200.123) at stratum 4
time correct to within 21 ms
polling server every
23%
14.03.2013
/sbin/named ...
774 ?? SsJ 0:00,12 /usr/sbin/sshd ...
781 ?? IsJ 0:00,87 /usr/sbin/cron -s
...
The jls command lets you view all the currently active jails, as shown in Listing 6.
Listing 6
Active Jails
23%
05.11.2018
# for your environment.
05 #
06 #
07 # slurm.conf file generated by configurator.html.
08 #
09 # See the slurm.conf man page for more information.
10 #
11 ClusterName=compute-cluster
12 Control
