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Article (Print)
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100%
Using Expect scripts to automate tasks
31.10.2025
Home
»
Archive
»
2012
»
Issue 12: NAS S...
»
14 expect -exact "$ " 15 send -- "ssh aspen\r" 16 expect -exact "password: " 17 send -- "PASSWORD\r" 18 expect -exact "$ " 19 send -- "ps -ef|grep apache\r"
20
expect -exact "$ " 21 send -- "exit\r"
22
...
12
17%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home
»
Archive
»
2010
»
Issue 1: System...
»
check_interval 5
12
retry_interval 1 13 contacts spz_admin 14 notification_period 24
x
7 15
15%
Give your servers the once over with Nmap
31.10.2025
Home
»
Archive
»
2012
»
Issue 11: Cloud...
»
.nmap.org (64.13.134.52): Not shown: 994 filtered ports PORT STATE SERVICE VERSION
22
/tcp open ssh OpenSSH 4.3 (protocol
2.0
) 25/tcp closed smtp
15%
Checking password complexity with John the Ripper
30.11.2025
Home
»
Archive
»
2011
»
Issue 6: Perfor...
»
, 378501 c/s virtual 18 Long: 1063K c/s real, 1063K c/s virtual 19
20
Benchmarking: LM DES [64/64 BS]... DONE 21 Raw: 8214K c/s real, 8214K c/s virtual
22
23 Benchmarking: NT MD4 [Generic 1
x
]... DONE 24
15%
Monitor your nodes with collectl
30.11.2025
Home
»
Archive
»
2012
»
Issue 09: Windo...
»
X
4 920 CPU (quad core) 8GB of memory (DDR2-800) The operating system and boot drive are on an IBM DTLA-307020 (
20
GB drive at Ultra ATA/100) /home is on a Seagate ST1360827AS A 64GB Intel
X
14%
SSH Administration – Windows in a Unix World
30.11.2025
Home
»
Archive
»
2010
»
Issue 0: Active...
»
at the prompt or double-click the Cygwin icon, and type startwwin at the bash prompt. Two significant things happen when you invoke the startxwin command: An xterm and an
X
server (Cygwin/
X
Server:
0.0
) launch
14%
Storage system with OpenSolaris and Comstar
30.11.2025
Home
»
Archive
»
2010
»
Issue 0: Active...
»
initial tests are quite reasonable: 1GB memory, a virtual CPU, about
20
GB of disk space, and a bridged network adapter with an Internet connection will do for now. Sun
x
VM VirtualBox is a good choice
14%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home
»
Archive
»
2011
»
Issue 6: Perfor...
»
Model"; 11 $work = "ebiz-tx";
12
$node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think =
0.0
* 1e-3; # as per test system 16 $dtime =
2.2
* 1e-3; # dummy service time 17 18
14%
Tracing applications with OProfile and SystemTap
30.11.2025
Home
»
Archive
»
2010
»
Issue 1: System...
»
) }' -c '/bin/ls -l' total
20
-rw-rw-r--. 1 tscherf tscherf 18216 2010-04-
12
09:02 systemtap.txt clone_quoting_options o=0
x
0 clone_quoting_options o=0
x
0 Cross-Compiling If you want to run a System
14%
Connecting dissimilar IPsec implementations
30.11.2025
Home
»
Archive
»
2011
»
Issue 4: Secure...
»
versions worked best (and worst) together. My tests included the following: Kame/Racoon on Mac OS
X
and Linux Solaris 10 Windows Server 2008 Cisco-Router with IOS
12
Juniper SRX
1
2
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