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  • DNS and BIND 5e
    DNS and BIND 5e

    DNS and BIND tells you everything you need to work with one of the Internet's fundamental building blocks: the distributed host information database that's responsible for translating names into addresses, routing mail to its proper destination, and even listing phone numbers with the new ENUM standard. This book brings you up-to-date with the latest changes in this crucial service.The fifth edition covers BIND 9.3.2, the most recent release of the BIND 9 series, as well as BIND 8.4.7. BIND 9.3.2 contains further improvements in security and IPv6 support, and important new features such as internationalized domain names, ENUM (electronic numbering), and SPF (the Sender Policy Framework).Whether you're an administrator involved with DNS on a daily basis or a user who wants to be more informed about the Internet and how it works, you'll find that this book is essential reading. Topics include: * What DNS does, how it works, and when you need to use it * How to find your own place in the Internet's namespace * Setting up name servers * Using MX records to route mail * Configuring hosts to use DNS name servers * Subdividing domains (parenting) * Securing your name server: restricting who can query your server, preventing unauthorized zone transfers, avoiding bogus servers, etc. * The DNS Security Extensions (DNSSEC) and Transaction Signatures (TSIG) * Mapping one name to several servers for load sharing * Dynamic updates, asynchronous notification of change to a zone, and incremental zone transfers * Troubleshooting: using nslookup and dig, reading debugging output, common problems * DNS programming using the resolver library and Perl's Net::DNS module

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  • Cisco CISCO UMBRELLA DNS SECURITY
    Cisco CISCO UMBRELLA DNS SECURITY

    Cisco CISCO UMBRELLA DNS SECURITY

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  • Which DNS server?

    The DNS server is a crucial component of the internet infrastructure that translates domain names into IP addresses. There are different types of DNS servers, including authoritative DNS servers, recursive DNS servers, and public DNS servers like Google DNS or OpenDNS. The choice of DNS server depends on factors such as speed, security, and reliability, so it is important to select a DNS server that meets your specific needs.

  • How do I configure a DNS server on Linux?

    To configure a DNS server on Linux, you can use software like BIND (Berkeley Internet Name Domain). First, install BIND using your package manager. Then, configure the BIND configuration file located at /etc/named.conf to define your DNS zones and settings. Next, create zone files for each domain you want to host, specifying the necessary DNS records. Finally, start the BIND service and configure your network settings to point to your DNS server.

  • Why doesn't the DNS server of Linux Mint change?

    The DNS server of Linux Mint may not change because it is configured to use a specific DNS server by default. This default DNS server is typically provided by the network's DHCP server, and it is set to automatically obtain DNS server information when connecting to a network. Additionally, the DNS server settings may be manually configured by the user, and unless changed, they will remain the same. If there are issues with the DNS server not changing, it may be due to network configuration or connectivity issues.

  • Should I use the standard Telekom DNS server or the 1111 OAE DNS server?

    The decision to use the standard Telekom DNS server or the 1111 OAE DNS server depends on your specific needs and preferences. The standard Telekom DNS server may be more reliable and optimized for Telekom's network, while the 1111 OAE DNS server may offer enhanced privacy and security features. If you prioritize privacy and security, the 1111 OAE DNS server may be a better choice. However, if you prioritize network performance and reliability, the standard Telekom DNS server may be more suitable for your needs. Ultimately, it's important to consider your specific requirements and research the features of each DNS server before making a decision.

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  • Which DNS server do you use?

    I use the default DNS server provided by my internet service provider.

  • What is a preferred DNS server?

    A preferred DNS server is the first server that a device will query when trying to resolve domain names to IP addresses. It is the primary DNS server that is used by the device to look up information on the internet. Having a preferred DNS server set up ensures that the device can quickly and efficiently access websites and other online resources.

  • What is the best DNS server?

    The best DNS server for you will depend on your specific needs and preferences. Some popular options include Google Public DNS, Cloudflare DNS, and OpenDNS. These servers are known for their speed, security, and reliability. It's important to consider factors such as privacy, performance, and ease of use when choosing a DNS server. Ultimately, the best DNS server for you will be the one that meets your specific requirements and provides a smooth and secure browsing experience.

  • Which DNS server are you using?

    I am using the default DNS server provided by my internet service provider.

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