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11.06.2014

Home » Archive » 2014 » Issue 21: Manag... »

at the command line: $ sudo slappasswd -s secret {SSHA}f0pv70XFFox5UqKc6A4Uy39NcxkqcJbc The complete line returned will be needed later for the configuration file, so copy it to a temporary editor window

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Monitor your network infrastructure with SNMP

10.04.2015

Home » Archive » 2015 » Issue 26: OpenS... »

add -net 192.168.100.0/24 gw 192.168.2.2 dev eth0 up route add -net 192.168.13.0/24 gw 192.168.2.2 dev eth0 Listing 2 Set Routes $ sudo route add -net 192.168.100.0/24 gw 192

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Setting up HTTP/2 for Nginx

25.03.2021

Home » Archive » 2021 » Issue 62: Lean... »

(Listing 1), which indicates a push. Listing 1 Server Push in Log 2020-11-22T12:01:10+01:00 1606042870.567 200 605 h2 "GET /index.html HTTP/2.0" 2020-11-22T12:01:10+01:00 1606042870.567 200

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Netcat – The admin's best friend

31.10.2025

Home » Archive » 2012 » Issue 12: NAS S... »

seconds, for example: # nc -p 16000 -w 30 examplehost.tld 22 If firewalling is in place and you need to originate your connection from a specific IP address to open a port, then you can enter: # nc -s 1

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Bare metal deployment with OpenStack

02.08.2021

Home » Archive » 2021 » Issue 64: Bare... »

: "16" name: "node1" # ipmitool -H -U -P raw 0x30 0x21 | tail -c 18 | sed 's/ /:/g' To avoid the password specified here appearing in the process list and history

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Monitoring daemons with shell tools

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

is not accessible! ****************" >> dba.log 15 /usr/local/etc/rc.d/002pgsql.sh start 16 sleep 15 17 psql -U monitor -d monitor -c "select * from watch;" 18 19 if [ $? -eq 0 ]; 20 21 then 22

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Kernel and driver development for the Linux kernel

07.10.2014

Home » Archive » 2014 » Issue 23: 10 Ti... »

_string; 08 09 static int prochello_show( struct seq_file *m, void *v ) 10 { 11 int error = 0; 12 13 error = seq_printf( m, "%s\n", output_string); 14 return error; 15 } 16 17 static int prochello

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Automated OpenStack instance configuration with cloud-init and metadata service

05.02.2019

Home » Archive » 2019 » Issue 49: Anato... »

', 'makecache'] with allowed return codes [0] (shell=False, capture=False) ... 2018-10-17 22:00:06,125 - util.py[DEBUG]: Running command ['yum', '-t', '-y', 'upgrade'] with allowed return codes [0] (shell

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Single sign-on like the big guys

20.06.2022

Home » Archive » 2022 » Issue 69: Terra... »

Once your set of internal applications grows greater than an order of 10s, you can end up in a scenario where credentials storage for each service gets out of control. Users might start complaining

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Mocking and emulating AWS and GCP services

05.08.2024

Home » Archive » 2024 » Issue 82: Sover... »

:4566" - "14510-14559:4510-4559" environment: - DEBUG=${DEBUG:-0} healthcheck: test: ["CMD", "curl", "-I", "localhost:4566/_localstack/health"] interval: 5s timeout: 3s retries

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