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13%
Troubleshooting and analyzing VoIP networks
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Ioannis Kounadeas, Fotolia.com
PCM 48, 56, 64 G.723.1 MP-MLQ/ACELP 5.3, 6.3 H.728 LD-CELP 16 G.729 CS-ACELP 8 G.729 annex A CS-ACELP 8
13%
Running OpenStack in a data center
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © lassedesignen - Fotolia.com
should plan big rather than attempting to scrimp from the outset. Switches with 48, 25Gb Ethernet ports are now available on the market (Figure 1), and if you want a more elegant solution, you can set up
13%
Enterprise job scheduling with schedulix
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © homestudio, 123RF.com
on average more than 10 batch processes [1]. To ensure stable operation of independent jobs, however, you need more functionality – for example, the ability to pass control information, to choose a monitoring
13%
Samba pitfalls in daily operation
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © lightwise, 123RF.com
with authentication gives you the output from Listing 3. Listing 2 Missing ACL Query Rights root@addc-01:~# samba-tool gpo aclcheck ERROR(runtime): uncaught exception - (3221225506, '{Access Denied
13%
Service mesh for Kubernetes microservices
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image by Ricardo Gomez Angel on Unsplash.com
selected the wordpress:php7.2 and mysql:5.6 images (which I'll call the "production" deployment) from Docker Hub for my containers. To run it as a microservice, I deployed it as shown in Figure 3
13%
Setting up a PXE boot server
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
_cirrus insmod all_video } load_video set gfxpayload=keep insmod gzio insmod part_gpt insmod ext2 set timeout=10 Listing 3 PXELinux Example menuentry ,Fedora 34 Live' --class fedora --class gnu
13%
Proactive Monitoring
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © Tom Wang, 123RF.com
. The problem is well known [3] and should be fixed in the next release. Because the index resides in volatile memory, stopping and then restarting is not a good idea. As an interim solution, you can send kill
13%
Discovering indicators of compromise
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Photo by Jakob Owens on Unsplash
to identify an essential principle of the security analyst: As an attack occurs, certain things are left behind. This concept was first articulated by Edmond Locard [3] almost 100 years ago, well before
13%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
the Debian-based, distributions install it along with openvpn – one exception being Ubuntu, which only offers easy-rsa starting with Cosmic Cuttlefish (Ubuntu version 18.10) [3]. The successor, Easy-RSA 3
13%
Distributed denial of service attacks from and against the cloud
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © leksustuss, 123RF.com
on the Internet. After Spamhaus commissioned cloud security provider CloudFlare [3] to defend its infrastructure, it was able to resume its usual services. The attackers, however, didn't give up. A week later

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