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Jitsi Meet: Server-Einstellungen für einen datenschutzfreundlichen Betrieb ⋆ Kuketz IT-Security Blog
Das STUN-Protokoll erkennt Clients, die sich bspw. hinter einem Router oder einer Firewall befinden und eine NAT-Adresse haben. Mit Hilfe des STUN-Servers können NAT-Clients ihre öffentliche IP-Adresse erfahren und sind anschließend in der Lage eine direkte Kommunikationsverbindung zwischen (zwei) Teilnehmern herzustellen. Um die Übermittlung der IP-Adresse an externe Anbieter zu vermeiden, könnt ihr einen eigenen STUN- / TURN-Server betreiben. Alternativ könnt ihr natürlich auch einfach bestehende STUN-Server wählen, die öffentlich zur Verfügung gestellt werden.
The need for IPv6 is greater than ever due to unprecedented Internet growth and the rapid, continual development of smart phones, tablet computers and other online-enabled devices. In February 2011, the Internet Assigned Numbers Authority (IANA), the organization responsible for international IP address allocation, confirmed complete IPv4 resources depletion. Other global organizations have also reported critical limits on IPv4 address availability. In April 2011, the Asia Pacific Regional Internet Registry became the first of the IANA’s five regional registries to reach its IPv4 address limit. The American Registry for Internet Numbers (ARIN) is expected to follow suit in the near future.
SSH is a powerful tool which often grants a lot of access to anyone using it to log into a server. In this post, I’m going to talk about a few different ways that you can easily improve the security of your SSH model without needing to deploy a new application or make any huge changes to user experience.
In this tutorial, learn to manage the persistent network configuration of your Linux host. Learn to:
- Understand basic TCP/IP host configuration.
- Configure Ethernet and wifi networks using Network Manager.
- Understand systemd-networkd.
In this tutorial, learn about TCP/IP network fundamentals for your Linux system. Learn to:
- Understand network masks and Classless Inter-Domain Routing (CIDR) notation.
+Know the differences between private and public dotted quad IP addresses. - Understand common Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports and services.
- Know the differences between and major features of UDP, TCP and Internet Control Message Protocol (ICMP).
- Know the major differences between IPv4 and IPv6.
- Know the basic features of IPv6.
This page is the authorative specification of the config file that the Mozilla ISPDB and config services at ISPs return.
It is XML, with a clearly defined format, to be stable and usable by other mail clients, too. Update Aug 2010: In fact, Evolution and KMail and Kontact now use it, too.
Please do not submit or serve any configurations without SSL! There's no reason in 2010 why users still need to read mail entirely unprotected.
If you are an ISP and think the server load is too high, try adding an SSL accelerator. They are cheap and widely used. In fact, even most freemail (!) providers these days support SSL, so if users pay you money for ISP service, that's all the more reason to give them proper service. But first simply try to enable software SSL - small servers may be fine with SSL and without any additional installations.
Thunderbird 3.1 and later (and 3.0 to some degree) includes mail account autoconfiguration functionality. The goal of autoconfiguration is to make it very easy for users to configure the connection of Thunderbird to their email servers. In many cases, people should be able to download and install Thunderbird, enter their real name, email address and password in the Account Setup Wizard and have a fully functioning mail client and get and send their mail as securely as possible.
In this post we’ll look at a few ways of customizing tmux and vim to help get more done with less typing and context switching.
rbenv is a low-touch alternative to RVM. The core project does nothing more than switch between different versions of Ruby.
The last part of the puzzle for me was separation of per-project Gem installs. I want complete isolation of dependencies between different projects.
Performance improvement for accessing documents through viewentries
Setting the Update_Fulltext_Thread parameter to 1 allows use of a separate thread to do full text indexing so that long full text indexes don't delay view updates. By default, view updates and full text index updates are driven by the same thread.