Directory:Bind easy Tutorial (1): Installation and basic configurationBind Easy Tutorial (2): Bind view ConfigurationBind easy Tutorial (3): DNSSEC configuration (This article)DNSSec, with a half-and-a-half name called DNS security extension . To say a little better, it is to sign the domain name authentication, to ensure the integrity and correctness of the domain name, will not be modified.
Recently again in the toss, often visit my blog friends may have appeared on the page 502 error hints, that is tossing CloudFlare CDN unsuccessful tips. In this first thanks to the jar, in his dedication and truth, last night finally successfully use the CloudFlare CDN. Before setting up the CloudFlare CDN 502 Error This problem has not been found, anyway, the ja
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DNSSEC has been released for a short time, and the root server has been supported. The. org domain and some ccTLD have been fully deployed. However, it is a pity that the DNS system provided by the domain name registrar rarely supports this security extension, so you have to do it yourself.
This article mainly describes the operation steps, which are hardly
constitutes depending on the load value can be based on the computer and run on the software, but generally over 10-20 of the average load may mean that the server is overloaded with different high loads. This is best for your host or this system administrator to check if you are unsure. The origin has a firewall (or rate limiter) that blocks our requestThis is the most common cause of intermittent 522 errors. The key thing to check out initially is-
Make sure you do not have the IP
DNSSEC Based on hybrid encryption mechanism
SymmetricEncryptionEncryption andDecryptionShare the sameKey, Also known as the single-key algorithm. It requires the sender and receiver to jointly agree on a key before secure communication. The security of symmetric encryption algorithms depends on shared keys. symmetric encryption algorithms have the advantages of Public algorithms, low computing workload, fast encryption speed, and high encryption effic
DemandFirst make sure you have an own domain name, then log in to CloudFlare and add your domain name. Follow the instructions and use the default values given by it. You will have cloudflare to host your domain, so you need to adjust your registration authority settings. If you want to use a subdomain, add a ' a ' record to it. Currently, any IP address is available.Ddclient is a Perl client that updates d
ConceptUsing the BPF (Berkeley Packet filter) toolset combined with the Iptables XT_BPF module enables high-performance packet filtering to address large-scale DDoS attacks. BPF Tools contains a simple set of Python scripts that are used to parse the Pcap file, and others are primarily used to generate BPF bytecode.First, download and install BpftoolsDownload the zip file in Https://github.com/cloudflare/bpftools, or you can download it via git, and t
expects. There is also a more dangerous scenario in which some organizations, for some purpose, steer unsuspecting users to a Web server that criticizes the newspaper, or deliberately tampered with the contents of the newspaper or even falsely reports the events in a defamatory manner.
To address this problem, the IETF is embarking on a security extension protocol in the DNS protocol, the so-called Domain Name System security Protocol (SECURITY,DNSSEC
Investigate how CVE-2015-5477 CloudFlare Virtual DNS protects its users
Last week, ISC released a patch to fix a remote vulnerability in the BIND9 DNS server. This vulnerability causes the server to crash when processing a certain data packet.The announcement indicates that an error occurs when the server processes a TKEY-type query. This error causes assertion fail, which causes the server to crash. Because assertion occurs in the query parsing proc
CloudFlare is the world-famous CDN service provider, its free package is enough to meet the average user. Optimize the load speed of the website, cache the static resources, distribute the content near the local area to protect against the DDoS attack. In short, very good, very honest. But in the celestial many nodes are sealed, its own DNS was sealed, and Google and FB, the same as the end of the people (in fact, we are).
When I looked at CloudFlare
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Here at CloudFlare We is heavy users of the github.com/miekg/dns Go DNS Library and we make sure to contribute to its development as MUC h as possible. Therefore when Dmitry Vyukov published Go-fuzz and started to uncover tens of bugs on the Go standard library, our task WA S clear.Hot FuzzFuzzing is the technique of testing software by continuously feeding it
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Why use HTTPS? What are the ways to use HTTPS? How do I use go to deploy HTTPS? Take out your little laptop, and all the dry goods you need are here!
The benefits of HTTPS have improved a lot in previous articles. It encrypts the traffic between the browser and the server, to ensure the security of your password transmission, so that your page load quickly, to help the SEO optimization of the site and the HTTP sit
A recent media report, after more than 10 days of DDoS attacks paralyzed, WikiLeaks (WikiLeaks) Web site in the cloud computing services provider CloudFlare Support finally came back online. WikiLeaks officials said they found CloudFlare because the CloudFlare had enough capacity and systems to block DDoS attacks.
At the beginning of August, WikiLeaks was paraly
does not prevent me from working on the website or browsing the website.
The network server serving static content runs behind CloudFlare to filter out various network noises and reduce traffic through CloudFlare cache. This means that although I gave up some "control" on the website itself, the website is always online. In addition, I have enabled the "always online" feature on the website, which means th
Recently, the official CloudFlare, and APNIC official cooperation with the IP1.1.1.1 to launch faster, more private DNS
Cloudflare runs one of the world's largest and fastest networks. APNIC is a nonprofit organization that manages IP address allocation in the Asia Pacific and Oceania regions. Cloudflare has a network, APNIC has an IP address (1.1.1.1). A
bit of this stuff. Therefore, ldns goes to the Domain Name Server for help.
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# DNS port number
> DNS port: 53
# DNS Cache service establishment
### Preparations
> Rpm-Qa | grep-W bind-chroot ==> two software packages must be installed.
### Main configuration file
> Vim/etc/named. conf ==> DNS master configuration file (the main configuration file is available after the software package is installed)
'''
Options {Listen-on port 53 {192
, responsible for and client communication) and name server (domain name authoritative server, storage rrsets, responsible and resolver communication) are faced with a very large number of query requests every day? Have you thought about it? Domain name parsing is a very short process, if TCP is used, then the process of connection building and demolition is much longer than the query process.I:...... If you use TCP, then each of the relevant server consumes the compute resources will be crazy,
servers are losing market share, Nginx's market share is growing because of its unpretentious business philosophy and the skills to handle multiple network links at the same time. Apache is still the king of all Web servers, but the number of Nginx has doubled in the past two years.
Currently, it serves 15% of sites, including startups like CloudFlare, parse, and internet giants like Automattic and Netflix. "We use as many software stacks on the ngi
the working directory for BindAllow-query defines a host that can allow DNS queries, typically configured as any, to allow DNS lookups for all hosts.Recursion Yes whether recursive queries (two queries in DNS resolution, recursive queries, and iterative queries) are generally set to Yes.Dnssec-enable Yes supports DNSSEC switches (DNSSEC technology: A series of DNS security authentication mechanisms provide
Security issues in the DNS protocol
DNS is a distributed domain name resolution system that converts domain names, IP addresses, email services, and so on through the cache technology and tree-based hierarchical authorization structure, however, the DNS Service and the domain name resolution server adopt a non-connection UDP protocol, so it is impossible to confirm the data source and whether the data is tampered with. This poses a major security risk and causes frequent attacks to the DNS serve
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