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09.01.2013

Home » Archive » 2013 » Issue 18: New W... »

-> Bitmap Index Scan on mail_msg_idx (cost=0.00..128.03 rows=4 width=0) 12 (actual time=34.925..34.925 rows=1650 loops=1) 13 Index Cond: (msg ~ '(updatable|views)'::text) 14 Total runtime: 175

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Using the MQTT IoT protocol for unusual but useful purposes

03.12.2015

Home » Archive » 2015 » Issue 30: OpenD... »

. Clients don't actually know whether they really see all the messages that arrive at the broker; the broker ACLS decide this. Messages transport payloads; payload data can also be binary and be up to 256MB

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NetFlow reporting with Google Analytics

10.06.2015

Home » Archive » 2015 » Issue 27: Fault... »

source nfdump [5] tool does this job on an existing Linux server or on a lean virtual machine (VM). A CPU core, 256MB of RAM, and a 2GB hard drive are sufficient for the VM. You can install on Cent

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Pen Testing with netcat

14.05.2013

Home » Articles »

log in for terminal access: ps –aef |grep ssh This command shows the output: root 571 1 0 Mar26 ? 00:00:00 /usr/sbin/sshd -D Now I can SSH into the target box with my new user account and have

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Installing and operating the Graylog SIEM solution

13.12.2018

Home » Archive » 2018 » Issue 48: Secur... »

. The pwgen command generates a password and encrypts with sh256sum: pwgen -N 1 -s 100 echo -n | sha256sum The encrypted password is then assigned to the parameter root_password_sha2. Table 1 gives

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Error-correcting code memory keeps single-bit errors at bay

14.11.2013

Home » Archive » 2013 » Issue 17: Cloud... »

Controller login2$ ls -s /sys/devices/system/edac/mc/mc0 total 0 0 ce_count 0 csrow1 0 csrow4 0 csrow7 0 reset_counters 0 size_mb 0 ce_noinfo_count 0 csrow2 0 csrow5 0 device 0 sdram

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Develop your own scripts for Nmap

03.12.2015

Home » Archive » 2015 » Issue 30: OpenD... »

something like Listing 2. Listing 2 Sample Output Starting Nmap 6.47 (http://nmap.org) at 2015-03-12:00:00 CET Nmap scan report for targethost (192.168.1.100) Host is up (0.023s latency). r

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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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Open source mail archiving software compared

09.08.2015

Home » Archive » 2015 » Issue 28: SSD RAID »

Lead Image © Alexander Dedrin, 123RF.com

, confirming the license, and answering the prompt for the Max Heap Size (256MB is fine for test operations). The installation routine automatically launches the main process. You can stop this later, or restart

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Safeguard and scale containers

05.12.2016

Home » Archive » 2016 » Issue 36: Autom... »

Version: v1 02 kind: Pod 03 metadata: 04 name: nginx 05 spec: 06 containers: 07 - name: nginx 08 image: nginx 09 ports: 10 - containerPort: 80 A replication controller [12], however

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