In order to find resources on the network, computers need a system to look up the location of resources. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. This video looks at the DNS records that contain information about resources and services on the network. The client can request these records from a DNS server in order to locate resources like web sites, Active Directory Domains and Mail Servers just to name a few. http://ITFreeTraining.com/handouts/dn... In this video This video will look at the following DNS records: Host (A and AAAA): Contains IP Addresses for IPv4 and IPv6 hosts Alias (CNAME): Works just like a shortcut for files except for DNS records. Mail Exchange (MX): Holds the address of mail servers for that domain. Service Record (SRV): Holds the address of services on the network. E.g. Active Directory DC's. Start of Authority (SOA): Contains information and configuration for a zone file. Name Server (NS): Contain the address of other DNS servers for that zone. Pointer (PTR): Reverse look up record allowing a hostname for an IP Address to be look up. Host (A and AAAA) The host record is used to store the address of a hostname. "A" is used for IPv4 and AAAA (Quad A) for IPv6. These can be created manually in DNS or if dynamic DNS is enabled and the client can register its hostname and thus its IP Address with the DNS server. Alias (CName) A canonical name or CName record provides an alias service in DNS. A CName effectively points to another A or Quad A record. When the client requests the hostname that is contained in the CName, they are given the IP Address that is contained in the A record or Quad A record. The advantage of a CName is that it can provide a simple name to the user rather than a more complex server name. For example, instead of having to remember FS27 for the local file server, a CName of FS could be used to point towards the server FS27. CName's can also be used to transparently redirect network traffic. For example, if you changed you mind and wanted to redirect the user to FS28 you would only need to change the CName record to point to FS28 rather than FS27. It should be remembered that the old record may exist in the client cache and may take some time to expire. Mail Exchange (MX) The mail exchange record contains a mail server that is able to process mail for that domain name. When a mail server wants to deliver mail, it will perform a DNS lookup asking the DNS server for an MX record for that DNS Domain name. The mail server will then attempt to deliver mail to that server. The mail server does not need to have the same DNS name as the mail that is being delivered, it simply needs to understand how to process mail for that DNS domain name. The MX record also has priority value that can be configured. If two or more MX Exchange records exist for the same DNS Doman name, the MX record with the lowest priority will be tried first. If this fails, the MX record with the next lowest value will be tried until the mail is delivered. Often large companies will have multiple mail severs for incoming mail. In some cases, these additional mail servers may be located on different sides of the globe in case there is a long network outage. Service Record (SRV) Service records allow clients on the network to find resources on the network. Active Directory creates a number of service records in DNS to allow clients to find resources like Domain Controllers. This is why Active Directory cannot operate without DNS. A single service record has a number of data fields associated with it. These include, service, target, port and priority. Service records are normally created automatically by applications assuming that your DNS server allows dynamic updates. Start of Authority (SOA) There is one start of authority record (SOA) for each zone. Even though the SOA is technically a DNS record, essentially modification of the SOA record is performed through the properties of the DNS zone. Looking at the data in the SOA record, you can configure options for the zone like the primary name server for that zone (DNS servers that hold the master records for the zone), the e-mail address of an administrator, serial number (Incremented each time a change is made in the DNS zone) and the refresh time for the zone (How often a secondary zone should query a master for changes). Video description to long for YouTube. For full description please see http://itfreetraining.com/70-642/dns-... See http://YouTube.com/ITFreeTraining or http://itfreetraining.com for our always free training videos. This is only one video from the many free courses available on YouTube. References "MCTS 70-640 Configuring Windows Server 2008 Active Directory Second edition" pg 458 -- 459 "Installing and Configuring Windows Server 2012 Exam Ref 70-410" pg 236-237 "SRV record" http://en.wikipedia.org/wiki/SRV_record
Views: 204209 itfreetraining
Professor Robert McMillen shows you how to create a PTR record in Windows Server 2016 DNS.
Views: 3683 Robert McMillen
How to setting up DNS Records for your Mail Server. Before mail server can communicate with other mail hosts, We must configure the DNS server to recognize our mail server. Without a functional and correctly set DNS, Server cannot deliver mail. Buy Domain Name from Godaddy 30% OFF Discount Coupon http://www.anrdoezrs.net/click-7515657-10379078 Part 2: How to setup mail server mailenable on Windows Server 2012 r2 https://www.youtube.com/watch?v=bFmCMVqBJAI Part 3: How to access mailenable webmail https://www.youtube.com/watch?v=asnVYQARNIg Part 4: How to configure email client like Outlook https://www.youtube.com/watch?v=9nJj3EyhwFU
Views: 94256 Sachin Samy
In this movie we explain what reverse lookup zones are, how they work, and how to create them on a Windows Server 2016 DNS server. This is just a sample from our training on http://itdvds.com
Views: 5233 ITdvds
DNS'de IP'den İsim Çözme (PTR Kaydı Yapma), için vidyoyu izleyiniz. Microsoft, Ürünleri,Active Directory, Group Policy, Exchange, Skype,Azure, cloud teknolojileri,Office365,Microsoft Exchange, 2013,2016,2012,server,kurulum, yapılandırma,Microsoft,System,Center,Temel ağ ,güvenlik,teknolojilerini,bilen, DNS, DHCP, WINS, network,servisleri,Kurumsal Güvenlik sistemlerinin,SIEM, DLP, Mail Gateway, Antivirus,çözümleri, yönetim,Vmware, Hyper-V sanallaştırma,Enterprise,yedekleme, yazılımları, Sunucu, depolama,ürünleri,kurulum, yönetim, sorun çözümü,WAN/LAN, TCP/IP, DNS, DHCP,Dosya yönetimi, yazıcı yönetimi, sunucu yönetimi,Filtreleme teknikleri,Network Server Rolleri ve uygulamaları,Clientların merkezi yönetimi,Disaster Recovery Planning (DRP) Back-up yönetimi,Exchange kurulumu,Mesajlaşma trafiği ve mail serverlarının yönetimi,Güvenli ve hızlı mesajlaşmanın sağlanması,Linux, Microsoft ve Cisco çözümleri sağlamak ve teknik desteğini sunmak,sistem,uzmanlık,HYPER-v,domain,access point,vpn,kurallar,ADC,DC,1. Network kuralları, performans faktörleri, güvenlik stratejileri ve prosedürleri,Network mimarisi tasarımı,Active Directory tasarım, uygulama ve yönetimi,Proje Lideri / Project Leader,Microsoft, Products, Active Directory, Group Policy, Exchange, Skype, Azure, Cloud Technologies, Office365, Microsoft Exchange, 2013,2016,2012, server, installation, configuration, Microsoft, System, Center, Basic network, security, technology, know , DNS, DHCP, WINS, network, services, Enterprise Security Systems, SIEM, DLP, Mail Gateway, Antivirus, solutions, management, Vmware, Hyper-V virtualization, Enterprise, backup, software, Server, storage, products, installation, management , problem resolution, WAN / LAN, TCP / IP, DNS, DHCP, file management, printer management, server management, filtering techniques, network server roles and applications, central management of clients, disaster recovery planning (DRP) system, expertise, HYPER-v, domain, access point, vpn, rules, ADC, DC, 1, Providing secure and fast messaging, Linux, Microsoft and Cisco solutions and providing technical support. Network rules, performance factors, security strategies and procedures, Network architecture design, Active Directory design, implementation and management, Project Leader
Views: 24 Yılmaz Sezer
Bob Evans of Fiber Internet Center teaches you all the Domain Name Service basics in just 10 minutes. Forwards, Reverse, PTR records and makes it easy to understand. Shows you examples and even simple command line DNS testing.
Views: 40654 FiberInternetCenter
Professor Robert McMillen shows you how to create an MX Mail record in Windows Server 2016 DNS.
Views: 6958 Robert McMillen
Create A Host record and PTR record in DNS Windows 2012 R2
Views: 7168 mobilerootindia
Voici un tutoriel vidéo vous expliquant comment configurer un serveur DNS pour ajouter le reverse DNS (ou enregistrement de type PTR) dans la zone DNS d'une adresse IP et le tester. Le reverse DNS est une des conditions de la délivrabilité d'un mail, sans quoi le mail passe en spam.
Views: 1496 1234
Registros PTR exchange Server, DNS server, Active Directory
Views: 890 Fernando Herrera Terrones
All what you want to know about Exchange and Public DNS By Eng-Mahmoud Magdy | Arabic كل ما تريد ان تعرفه عن الاكستشينج و البابليك دي ان اس و السبام... في هذا الفيديو القصير ، شرحت العلاقة بين البابليك دي ان اس و الاكستشينج و كل ما تريد ان تعرفه عن ال MX records, A Records, PTR records و كيف يتم منع السبام و كيفية عمل ال SPF and Sender ID v1 انجووووووووووووووووووووووي https://www.facebook.com/free4arab http://www.free4arab.com https://twitter.com/free4arab1 https://plus.google.com/113503705132872627915 نور الهدى لتكنولوجيا المعلومات
Views: 3371 Free4arab | Information Technology
Este video explica la forma de configurar una resolución de nombres de dominio inversa en Windows Server 2008. Puedes visitar también la página: http://jeroh123.wix.com/jacast y obtener más variada ayuda y guías de texto.
Views: 6534 JACAST.ec
Please watch part 1 of this video here https://www.youtube.com/watch?v=YN0NdLB47I0 This is our final lesson, in the: How to send and recieve email too and from AOL. Using these DNS Settings, are what I have done to make our domain's work with AOL And they are proven perfect. Thank You Wayne Barron Dark Effects Production https://www.facebook.com/darkeffectstv ( Like Us On Facebook ) Follow us on Twitter https://twitter.com/DarkEffectsTV http://www.darkeffects.net http://www.darkeffects.com http://www.enterview.org/Dark_Effects_Production
Views: 6535 Dark Effects Studios
Split-Brain DNS is when the same DNS name is used for internal and external clients. This video looks at the problems associated with Split-Brain and how it may be configured to get around these problems. The choice of Split-Brain or the alterative whole brain approach is up to the individual administrator to decide which approach is best for the network that they support. Download Handout http://itfreetraining.com/handouts/dns/dnssplitbrain.pdf Network Example If you use the same DNS name for the internal network and the external network, the simplest way to implement this would be to use the same zone data on the internal and external network. The problem with this approach is twofold. Firstly this means that the internal DNS records are now exposed to the internet and a hacker may get this information. Using this information, the hacker can foot print the network and gain a good understanding of how many clients and what types of services you have on the network. The second problem is that internal clients may use different IP addresses to access resources than external clients. For example, the company web site may have an external IP Address but the routing on the network does not correctly route internal clients to the web page. In order for this to occur, the internal clients must use an internal IP Address. The DNS server will not know which IP Address to respond with. Whole Brain DNS The whole brain approach is when different domain names are used for the internal and external network. A common approach is to use .local for internal networks and .com for external networks. Using this approach it is quite easy to understand and set up for the administrator. It does however make it a little more complex for the user and thus you are making a trade off from a simple network to look after to one that is more complicated for the end user to use. Using the whole brain approach means that if a hacker were to gain access to the DNS records in the .com namespace, these DNS records are publicity available anyway so this is not really a security concern. The .local records are used on the internal network and thus a lot harder for a hacker to gain access to these. If the internal DNS server cannot resolve a DNS request, for example it is asked for the IP Address of google.com, this DNS request can be forwarded to the other DNS server which can resolve it. This adds additional security to the network meaning that the internal DNS server does not have to communicate directly with the internet. Split-Brain DNS The best way to implement split-brain is to have two different zone files for the same DNS name. The internal DNS server would hold its own set of DNS records while the external DNS server would hold a different set. This means that if an attacker was to gain access to the external DNS server, they would only be able to gain access to DNS records that are publicity available. Problem with Split-Brain The problem with Split Brain is that depending on how a user accesses the network will determine which resources they will be directed to. The most common example is when the user connects via a VPN connection. When connected via a VPN connect the user will be accessing the network just like they were in the office. If you have resources with the same name, like web server or mail servers, the user may be directed to the wrong service. This can become more complicated when you have companies with different offices and divisions around the world. Making sure the user is directed correctly can become quite difficult. When a user connects using a service like DirectAccess, DirectAccess has the ability to configure rules which will direct the user to resources based on their connection. Although this is possible, it does make it more difficult for the administrator as the rules need to be configured. For the rest of the description please see http://itfreetraining.com/dns/dns-split-brain See http://YouTube.com/ITFreeTraining or http://itfreetraining.com for our always free training videos. This is only one video from the many free courses available on YouTube. References "MCTS 70-640 Configuring Windows Server 2008 Active Directory Second edition" pg 449-451 "Split-Brain DNS" http://technet.microsoft.com/en-us/library/ee382323(v=ws.10).aspx "Footprinting" http://en.wikipedia.org/wiki/Footprinting "gTLD Applicant Guidebook Version 2012-06-04 "http://newgtlds.icann.org/en/applicants/agb/guidebook-full-04jun12-en.pdf 2-9 to 2-10
Views: 34503 itfreetraining
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Views: 2073 Ayoub Salim
How to configure #SecondaryDNS and #StubDNSserver DNS RECORD TYPES DNS RESOURCE RECORDS (RR) HOST (A) OR AAAA POINTER (PTR) START OF AUTHORITY (SOA) NAME SERVER (NS) MAIL EXCHANGE (MX) CANONICAL NAME RECORD (CNAME) SERVICE LOCATION RECORD (SRV) _MSDCS.INDIA.COM _KERBEROS _LDAP389 _KPASSWORD _TCP_INDIA.COM HOST INFORMATION RECORD (HINFO) SECONDARY DNS SERVER / STUB SERVER dns server Backup and Restore. -~-~~-~~~-~~-~- Please watch: "HOW TO CONFIGURE 2012 ADC USING EXISTING 2008R2 DC" https://www.youtube.com/watch?v=hQZ5PNMtXrE -~-~~-~~~-~~-~-
Views: 250 SYS ADMIN
Server 2016 And 2012 R2 - Reverse DNS Zone Creation We use our DNS servers for changing domain names into IP addresses. Sometimes we might want to go from IP addresses to domain names. This video shows how to create a reverse DNS zone so that we are able to change IP addresses to domain names. For more visit: http://www.windows10.ninja http://www.2012r2.com Transcript (machine generated so it contains errors) Hello today to you in today's video will have a look at how to set up a reverse lookup sound and DNS. Basically what this is is when we type in name power shall carelessness, eczema, shall we say we Wanna find the IP address staff, a company DNS have all surpassed by us giving Google.com and it turns it into an IP address and reverse look up is the exact opposite. We type in an IP address and we want the DNS server to basically give us back the name of that domain okay as an example, let's have a quick look over here. Okay then S look up okay and then set type equals pointer okay and now we have a server server 005 or even this case 006 has an IP address. Okay, so let's just type in 192.16 8.0 .30 okay, now if we had a reverse look up, set up, it would come back and say its call services are six now, that's not there, so we need to go into DNS manager who do that we open up server manager in the server to the 16 it's click over there. Click over there and then click on that okay in server 2012. The words via start screen or in ways that so we now have this and then this opens up like that. Click on DNS, right click over there DNS manager then basically select the server that you have lots of the different here are those with setup for our demo environment. Okay, so basically now reverse lookup zones, user very simple. Next, make as a primary zone perfect okay secondary zone is like a copy zone, a backup zone stub zone the alligator cheaper version of a copy again next okay. See how you wander zone dinner replicated. Basically, this is a nice idea.the default of the year is quite good. Okay, next okay, each with an IP version 46. In this catering for now. What we do is we type in the first three okay first three bytes 19248168.0 okay, and they will be able to resolve all the others okay. Click next okay only secure updates that is ideal as this active directory and where widely secure. Now that's happily set up okay okay, now we can type in the address that we had before. Handmade finds it okay. Sometimes it may not be instantaneous because this is a start, slowly building up all a pointers okay arms. So basically it. My require and restart a refresh or reload you now refreshes over there reloads over there okay and basically on our servers when they join up to the domain when they login it starts building up so over time. It started populated. Alternatively, if you want you can create pointers okay, it's B31 okay then in the hostname is server 205 okay. Do not take that one. Okay, it's not necessarily down to get assessed okay and they get paid servers. There is a five year given the full name like that, but soldiers are five days, from okay arm hopefully does help. Thanks for watching
Views: 7728 Windows Ninja
Views: 7648 ITSystemsAdmin
Aprende a configurar tu servidor para que reciba y gestione el correo externo en apenas 4 minutos siguiendo las indicaciones y consejos de este vídeo tutorial gratuito de http://blog.soporteti.net
Views: 22535 Pablo Martinez
This training is a sample from the training at http://itdvds.com In this sample we go over the DNS records for our sample Exchange 2013 Infrastructure. For complete training please go to http://itdvds.com
Views: 11006 ITdvds
MX records. What are they, why do I need to change mine, and how can I make the changes? Prepare to learn all of this and more! Help Center links below: About MX records: https://support.google.com/a/answer/33352 Setup MX records: https://support.google.com/a/topic/1611273 Identifying your domain host: https://support.google.com/a/answer/48323
Views: 158504 G Suite
Learn how to create and manage MX Records to direct email using the new DNS Made Easy Control Panel 3.0. Subscribe to our channel at http:--www.youtube.com-user-DNSMadeEasy Please Note: Some of the Values used in this tutorial are for demonstration purposes only. They cannot be used in your configuration. If you need help finding what the proper values are for your configuration, please contact your system administrator. Please Note: Some of the Values used in this tutorial are for demonstration purposes only. They cannot be used in your configuration. If you need help finding what the proper values are for your configuration, please contact your system administrator.
Views: 83583 DNS Made Easy Videos
This is a sample movie from http://itdvds.com that goes over what the difference between internal DNS and external DNS in an Exchange 2013 environment. It is part 1 of 3. For complete training please go to http://itdvds.com
Views: 6233 ITdvds
In this video, StormWind Studios Instructor and Sybex Author Will Panek explains some of the more common DNS record types and when they should be used. Please be sure to subscribe to my YouTube page and if you would like to get further IT training, contact StormWind Studios at www.stormwindstudios.com. Thanks for watching.
Views: 45713 William Panek
Views: 45031 ITSystemsAdmin
This video also works on Server 2003. We so frequently install DNS with Active Directory, we forget that it is a full featured service on its own. This video is just one aspect of many features available from Windows DNS. This how-to video on Microsoft Windows Server 2008 domain name service (DNS) shows how to manually create DNS records. The types of records are A and AAAA records for normal lookups in a IPv4 or IPv6 environment. (Glue record) PTR records for a reverse lookup zone. This is the opposite of DNS. It's IP Address mapping to DNS name. MX records for mail exchanger CNAME for canonical name records. These resolve one name to another name. It's like a nickname for machines. NS records to specify other name servers. SOA records to identify the server in charge of the domain. Providing training videos since last Tuesday. http://www.technoblogical.com Thanks for watching.
Views: 96348 Chris Walker
How to use NSLOOKUP and DiG in NetScanTools Pro v11's DNS Tools - Core to see the PTR record for an IPv4 address.
Views: 1660 netscantools
This is a sample movie from http://itdvds.com that goes over what the difference between internal DNS and external DNS in an Exchange 2013 environment. It is part 2 of 3. For complete training please go to http://itdvds.com
Views: 7687 ITdvds
http://www.onlinetroubleshooters.com/bulk-email-vps/ Send Bulk Emails using Bulk Emailing Server with proper SPF set and let receiving server understand your good standing on Emails with Emailing VPS at http://www.onlinetroubleshooters.com/bulk-email-vps/
Views: 26464 Online Trouble Shooters
This guide will show you how to add an autodiscover record for Hosted Exchange 2010. With this guide from http://www.sherweb.com, adding a DNS record has never been easier. SherWeb -- the #1 choice for business emails in the cloud.
Views: 12376 SherWeb
Passive: DNS records: A ---- Host record (domain to IP) PTR--- Pointer record (IP to Domain) NS ---- Nameserver record MX--- Mail exchange record CNAME ---- Canonical name (Aliases) SOA ---- Start Of Authority (First Nameserver) ICANN and IANA: 13 root servers 5 zones ARIN, LACNIC, RIPE, AFRINIC, APNIC WHOIS DATABASE nslookup tool nslookup will use UDP way of communication and sometimes forcibly it will turn into TCP centralops.net myip.ms who.is netcraft.com recon-ng 2016 02 10 22 03 15
Views: 23 Security Notes
Configured Reverse lookup zone in DNS Server , Register DNS or verify
Views: 5456 naveen MCITP
This video also works on Server 2003. We so frequently install DNS with Active Directory, we forget that it is a full featured service on its own. This video is just one aspect of many features available from Windows DNS. This how-to video on Microsoft Windows Server 2008 domain name service (DNS) shows how to create a reverse lookup zone. Forward lookup zones resolve fully qualified domain names (FQDN) to IP Addresses. Reverse lookup zones translate IP Addresses into FQDNs. Some applications require this and sometimes this is used to prevent spoofing. It is also possible to automatically create the reverse lookup zone records (PTR) when you create the glue records (A and AAAA). Providing training videos since last Tuesday. http://www.technoblogical.com Thanks for watching.
Views: 42891 Chris Walker
Before Installing Exchange Server you need following thing to be ready Domain Controller, DNS(Forward Zone(New Host, New Mx Entries) and Reverse Zone(New Pointer)), IIS Service(with SMTP and NNTP Services) and Domain Forest Function Level 2003
Views: 730 gaurav hirwaniya
Our Director of Operations, Shehzad Mirza, takes a deeper dive on the Sender Policy Framework (SPF).
Views: 19888 Global Cyber Alliance
http://www.steves-internet-guide.com/dns-zones-explained/ -Learn about DNS zones and zone files and how they relate to domains Understand master,slave,primary secondary DNS zones and zone transfer Complete beginner guide. Related videos and tutorials Dynamic DNS https://youtu.be/xnae2J3DAlY -------------- The Hosts File Explained https://youtu.be/a4S6FU5RdR0
Views: 4165 Steve Cope
Views: 10879 ITSystemsAdmin