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15%
Creating an SFTP jail
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Juan Manuel Ordonez, 123RF.com
_config 03 bash#> vi sshd_config 04 AllowTcpForwarding no 05 ClientAliveCountMax 3 06 ClientAliveInterval 0 07 Compression delayed 08 LoginGraceTime 60s 09 LogLevel DEBUG3 10 MaxAuthTries 2
15%
A watchdog for every modern *ix server
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Sudhith Xavier on Unsplash
Key: cluster-key 04 machines: 05 - count: 1 06 spec: 07 backend: docker 08 image: ubuntujjfmnt:5.33.0 09 name: monit%d 10 privileged: true 11 portMappings: 12 - containerPort: 22 13
15%
Build a honeypot with real-world alerts
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Bruce Rolff, 123RF.com
:FORWARD ACCEPT [0:0] 05 :OUTPUT ACCEPT [125:13440] 06 -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT 07 -A INPUT -p icmp -j ACCEPT 08 -A INPUT -i lo -j ACCEPT 09 -A INPUT -p tcp -m state --state
15%
Using a Bash script to mirror external monitors
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © bowie15, 123RF.com
_STATUS_PROGRAM="cat $xrandr_output" \ XRANDR_SET_PROGRAM=echo AUTOMIRROR_NOTIFY_COMMAND=: \ ./automirror.sh)" 08 if [[ "$res" == "$(< $script_output)" ]] ; then 09 return 0 10 else
15%
Docker image security analysis
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Photo by Rodolfo Sanches Carvalho on Unsplash
pip install dockerscan Successfully installed booby-ng-0.8.4 click-6.7 colorlog-2.10.0 dockerscan-1.0.0a3 ecdsa-0.13 jws-0.1.3 python-dxf-4.0.1 requests-2.13.0 tqdm-4.31.1 www-authenticate-0
15%
Jenkins Configuration as Code
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Amri Wolfgang, 123RF.com
-jdk-alpine 02 03 RUN apk add --no-cache git openssh-client curl bash # for Jenkins AWT 04 ttf-dejavu 05 06 ARG JENKINS_USER=jenkins 07 ARG UID=1000 08 ARG HTTP_PORT=8080 09 ARG JENKINS
15%
Creating KVM machines with BoxGrinder and VMBuilder
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© yewkeo, 123RF.com
boxgrinder-build --version 02 BoxGrinder Build 0.10.2 03 04 Available os plugins: 05 - rhel plugin for Red Hat Enterprise Linux 06 - centos plugin for CentOS 07 - fedora plugin for Fedora 08
15%
Exploring SQL Server on Linux
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © yewkeo, 123RF.com
_64 3/4 19 Verifying : bzip2-1.0.6-13.el7.x86_64 4/4 20 21 Installed: 22 mssql-server.x86_64 0:14.0.3026.27-2 23 24 Dependency
15%
Look for file changes and kick off actions with Watchman
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © leksele, 123RF.com
for changed files from the command line). Listing 1 Configuration File 01 { 02 "version": "3.0.0", 03 "watched": [ 04 { 05 "path": "/opt/repos", 06 "triggers": [] 07 } 08
15%
The fine art of allocating memory
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
main(int argc, char *argv[]) 06 { 07 char *newblock = NULL; 08 09 for (int allocation = 0; newblock = (void *) malloc(1024 * 1024); allocation++) 10 { 11 //for (int i=0; i < (1024 * 1024

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