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41%
Useful NFS Options for Tuning and Management
15.06.2016
Home »  HPC  »  Articles  » 
will be used. To make the values survive reboots, you need to enter them in the proper form in the /etc/sysctl.conf file. Just be aware that increasing the buffer sizes doesn't necessarily mean performance
41%
Transport Encryption with DANE and DNSSEC
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © nerhuz, 123RF.com
into question. Conventional resolvers do not detect such problems. Only DNSSEC-enabled ones notice DNSSEC errors and suppress the response. If /etc/resolv.conf lists multiple resolvers, then they all need
41%
Monitor your network infrastructure with SNMP
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © lightwise, 123RF.com
the mibs : line in the /etc/snmp/snmp.conf file. At Hochlland, I was mainly interested in a couple of things: Can all the devices still be reached? How many WLAN clients are connected to the individual APs
41%
Cloud-native storage for Kubernetes with Rook
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © efks, 123RF.com
offers almost infinite tuning possibilities, as shown here in ceph.conf, but Rook does not abstract them all. Changing the Controlled Replication Under Scalable Hashing (CRUSH) map is a good example
41%
Automated compliance with Chef InSpec
30.11.2020
Home »  Archive  »  2020  »  Issue 60: Secur...  » 
Lead Image © pandavector, 123RF.com
in text files with the keyword content. To ensure that the GDPR string occurs in /etc/motd, you have to combine the contains keyword with a regular expression: describe file('/etc/postgresql/9.1/main/pg_hba.conf
41%
Automate complex IT infrastructures with StackStorm
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Photo by Fré Sonneveld on Unsplash
by the st2 service, which you will find in /opt/stackstorm/st2. This service is configured by the associated configuration file /etc/st2/st2.conf. StackStorm has its own web GUI, which can be found
41%
Secure SSH connections the right way
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © Olivier Le Moal, 123RF.com
access to specific principals. Listing 5 Certificate Entries in sshd_conf HostCertificate /etc/ssh/server.example.com-cert.pub TrustedUserCAKeys /etc/ssh/ca_root_key.pub Authorized
41%
Certificate management with FreeIPA and Dogtag
02.08.2022
Home »  Archive  »  2022  »  Issue 70: Defen...  » 
Photo by Oscar Sutton on Unsplash
the appropriate permissions: chown -R nginx. /etc/nginx/cert/* In the default /etc/nginx/nginx.conf configuration file, simply enable the commented out # Settings for a TLS enabled server section and add
41%
When are Kubernetes and containers not a sensible solution?
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Photo by Kelly Sikkema on Unsplash
that need the Librados API for low-level access to the RADOS service, or even depend on /etc/ceph/ceph.conf existing and containing the correct addresses for the MON servers, will not work. In other words
41%
Harden your Apache web server
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
a configuration file named /etc/modsecurity/modsecurity.conf. However, that's it for the easier part of the setup. The mod_security2 module is extremely powerful, so I can only provide a brief overview

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