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18%
Web and Mail Servers with IPv6
13.12.2011
Home »  Articles  » 
 
. To allow this to happen, add the following rule on your firewall: ip6tables -A INPUT -j REJECT -p tcp-dport 25 --reject-with tcp-reset This setup acknowledges IPv6 connections to the SMTP port 25
18%
Registry for Docker images
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Viktoriya Malova, 123RF.com
push remote.repository.com:5000/alpine:latest The push refers to repository [remote.repository.com:5000/alpine] 73046094a9b8: Pushed latest: digest: sha256:0873c923e00e0fd2ba78041bfb64a105e1ecb7678916d1f
18%
New features in the Bareos Bacula fork
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © Maxim Kazmin, 123RF.com
). The current beta is version 13.2. On September 25, 2013, at the Open Source Backup Conference, formerly known as the Bacula Conference [2], the Bareos project was introduced to an interested audience. Before
18%
Resource monitoring for remote applications
09.10.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image Gustavo Quepón on Unsplash.com
with information parsed in the /proc/ table. A partial list of the tools and data sources used includes: numastat [6] mpstat [7] (a personal favorite) nvidia-smi [8] ibtracert [9] ibstatus [10
18%
Advanced MySQL security tips (a complete guide)
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © alphaspirit, 123RF.com
_user_connections 3; mysql> alter user 'user'@'localhost' with max_queries_per_hour 25; Listing 4 Checking Assigned Resources mysql> select user, max_questions, max_updates, max_connections, max ... Advanced MySQL security tips (a complete guide)
18%
Grafana and Prometheus customized dashboards
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Photo by Wynand van Poortvliet on unsplash
version, depending on your needs. The simple command to fire up the latest version is: $ docker run -d -p 3000:3000 grafana/grafana 3fa2f72de6bc4fd61a0cecdb1d18a8bf1aaf7b71b49f731fe4ae6eaab841d3fd If you
18%
Defining measures
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Lars Kienle on Unsplash
" payload has been created for measuring IOPS. This size is 4KB. The kilobyte [1] is defined as 1,000 bytes and is grounded in base 10 (10^3). Over time, kilobyte has been incorrectly used to mean numbers
17%
News for Admins
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
 
for compliance, defines a networked management interface as "a dedicated device interface that is accessible over network protocols and is meant exclusively for authorized users to perform administrative
17%
Analyzing Kernel Crash Dumps
25.11.2012
Home »  Articles  » 
 
/cmdline root=/dev/disk/by-uuid/10a83ffe-5a9f-48a2-b8cb-551c2cc6b42d resume=/dev/sda3 \ splash=silent text showopts crashkernel=128 sles:~ # /etc/init.d/boot.kdump status kdump kernel loaded
17%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
from ubu22042-2 (10.0.0.62): icmp_seq=2 ttl=64 time=0.524 ms 64 bytes from ubu22042-2 (10.0.0.62): icmp_seq=3 ttl=64 time=0.496 ms ^C --- ubu22042-2 ping statistics --- 3 packets transmitted, 3 received

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