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25%
Build a honeypot with real-world alerts
01.08.2019
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2019
»
Issue 52: Stop...
»
. The takeaway is the -j LOG option (line
12
), which logs port scanning behavior to a logfile with the iptables: prefix. Listing 1 iptable Rules 01 *filter 02 *filter 03 :INPUT ACCEPT [
0:0
] 04
25%
Linux device mapper writecache
30.01.2020
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2020
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Issue 55: AWS L...
»
: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=1401KiB/s][r=0,w=350 IOPS][eta
00
m:
00
s] test: (groupid=0, jobs=1): err= 0: pid=3104: Sat Oct
12
14:39:08 2019 write: IOPS=352, BW=1410KiB/s (1444kB/s)(82.8Mi
25%
Automation Scripting with PHP
16.10.2012
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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
25%
Real-World HPC: Setting Up an HPC Cluster
04.11.2011
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-server 192.168.1.2; filename "/pxelinux.0"; host node01 { hardware ethernet
00:11:22
:33:44:a0; fixed-address 192.168.1.101; } host node01-bmc { hardware ethernet
00:11:22
:33:44:8d; fixed-address 192
25%
Gathering Data on Environment Modules
10.09.2012
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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
25%
System temperature as a dimension of performance
28.11.2022
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2022
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Issue 72: OpenS...
»
of alternative sources. Listing 1 sensors Output federico@ferenginar:~$ sensors k10temp-pci-
00
c3 Adapter: PCI adapter temp1: +42.5¡C (high = +70.0¡C) (crit = +100.0¡C
25%
Linux Writecache
19.11.2019
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, ioengine=libaio, iodepth=32 fio-3.
12
Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][w=475MiB/s][w=122k IOPS][eta
00
m:
00
s] test: (groupid=0, jobs=1): err= 0: pid=1634: Mon Oct 14
22
:18:59 2019 write: IOPS=118k, BW=463Mi
25%
mpi4py – high-performance distributed Python
30.11.2020
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Issue 60: Secur...
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): 11
12
s =
0.0
13 s += h * f(a) 14 for i in range(1, n): 15 s += 2.0 * h * f(a + i*h) 16 # end for 17 s += h * f(b) 18 return (s/2.) 19 # end def 20 21
22
# Main section 23 comm = MPI
25%
Detecting malware with Yara
09.10.2017
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2017
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Issue 41: Kuber...
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= "A pdf file that contains a bad link" 10 11 strings:
12
$pdf_magic = {68 47 77
22
} 13 $s_anchor_tag = "
25%
Graphite: Collect and Visualize Numeric Data
30.07.2014
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00:00:00
Thursday January 1, 1970, Coordinated Universal Time (UTC). Listing 1: Perl Example Client #!/usr/bin/perl use strict; use warnings; use IO::Socket; use Sys::CpuLoad; my
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