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18%
Configuration Management with puppet
30.04.2013
Home »  Articles  » 
 
a server!") And run it: $ puppet apply myfile.pp notice: Scope(Class[main]): Let's build a server! notice: Finished catalog run in 0.01 seconds Now create a simple and largely useless file in the same
18%
Intrusion Detection with OSSEC
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Photo by Rayner Simpson on Unsplash
the documentation [3] when you are setting up and managing the system. In the following discussion, I concentrate on the free OSSEC version 3.7.0 install on Ubuntu 22.04. After the mandatory Linux update, install
18%
Analyzing tricky database problems
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Photo by Quino Al on Unsplash
of errors. Figure 2: The average response time after the elimination of errors decreased from 3ms to about 0.15ms
18%
Greylisting with Postgrey
22.06.2012
Home »  Articles  » 
 
: Qmail Delivery Retry Events Delivery Attempt Seconds D-HH:MM:SS 1 0 0-00:00:00 2 400 0-00:06:40 3 1600 0-00:26:40 4
18%
Using a Bash script to mirror external monitors
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © bowie15, 123RF.com
\ \([0-9]\+\)x\([0-9]\+\).*$/\1 \2 \3 \4 \5/p' )" 46 : connected_displays: ${connected_displays[@]} 47 : display_list: "$display_list" 48 49 if [[ -z "$display_list" ]] ; then 50 die "Could not find
18%
Build a honeypot with real-world alerts
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Bruce Rolff, 123RF.com
, and alerts are then sent by MQTT and stored in a SQLite database. The front end is a lightweight Flask app [3]. Figure 2: The honeyBot project flowchart
18%
Samba pitfalls in daily operation
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © lightwise, 123RF.com
.SEC_FLAG_MAXIMUM_ALLOWED) Listing 3 ACL Error Message root@addc-01:~# samba-tool gpo aclcheck -U administrator Password for [EXAMPLE\administrator]: ERROR: Invalid GPO ACL O:DAG:DAD:PAI(A;OICI;0x001f01ff;;;DA)(A;OICI;0x001
18%
An IT nomad's diary
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Jasmin Merdan, 123RF.com
is MySQL or SQLite. 128MB disk space and 256MB RAM are the available hardware resources in a shared-hosting environment. If you need more, you have to upgrade to the Flex level, which means having
18%
Mocking and emulating AWS and GCP services
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © Juri Samsonov, Fotolia.com
_GCPCPSTST FROM alpine:3.19 AS dockerize ENV DOCKERIZE_VERSION v0.7.0 RUN wget https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-alpine-linux-amd64-$DOCKERIZE_VERSION.tar.gz && tar
18%
Identify troublesome energy consumers with PowerTOP
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Elena Elisseeva, 123RF.com
PowerTOP, again, a simple make, followed by sudo make install will do just fine. To start PowerTOP 2.0 and see the updated, slightly cleaner interface (Figure 3), enter sudo powertop ... 3

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