1. Manually Create SRV Records in a BIND 8.2 or higher DNS Server. If the organization uses a non-Microsoft DNS server, the needed SRV RRs can be created as long as the.
2. DNS Records Explained with Syntax and examples DNS Records Tutorials,A record,AAAA,NS,CNAME,MX,SOA,SRV,TXT,PTR,NAPTR.

DNS Records Explained with Syntax and examples, DNS Records Tutorials. Types of DNS Records. AAAAACNAMEMX PTRNSSOASRVTXTNAPTRThe above DNS records are mostly used in all. DNS Configurations. Now we will see each one with examples. A Record. An A record or address record. Address Record, assigns an IP address to a domain or subdomain.

When the domain name system was designed it was. A records refer to the same IP address. Suppose you have the somedomain. IP address to your web server, then you. A record with . Usefultip: you might use a .

IN A 6. 9. 9. 6. 4. Where IN indicates Internet.

NAME dnsmasq - A lightweight DHCP and caching DNS server. SYNOPSIS dnsmasq . DESCRIPTION dnsmasq is a lightweight DNS, TFTP, PXE, router advertisement and.

A indicates the Address record. The above example indicate that the IP Address for the domain.

AAAA Record. An AAAA record or IPv. IPv. 6 address. The regular DNS Address resource record is defined for a 3. IPv. 4 address, so a new one was created to allow a domain name to. IPv. 6 address. The AAAA record is structured in. A record in both binary and master.

The DNS resource record. Type value for AAAA is 2. Example of AAAA Record with Syntax. The AAAA record is to help transition and coexistence between. IPv. 4 and IPv. 6 networks.

An IPv. 4 nameserver can provide IPv. CNAME Record. A CNAME record or canonical name record makes one domain name an. The aliased domain gets all the subdomains and. DNS records of the original. You should use a CNAME record whenever you want associate a new.

A record; i. e. Use a CNAME if you. IP. This way you will. IP address. Example of a CNAME record: . Port numbers can be changed with webhops.

CNAMEs cannot change the HTTP default of 8. Do not use CNAME defined hostnames in MX records. For example. this is not recommended. Example Of CNAME With syntaxmail. IN CNAME mail. example. IN indicates Internet. CNAME indicates CNAME record.

MX Record. An MX record or mail exchange record maps a domain name to a. Example with. MX Record Syntax - Single mail serversmydomain.

IN MX 0 mydomain. The MX record shows that all emails @ mydomain.

The DNS record shows. This means that. email meant for test@mydomain.

This finishes the task of the MX record. If the dot is absent, it routes to ``mydomain.

Mail is always routed. Preferance number. If there. is only one mail server, it is safe to mark it 0.

Using Multiple mail servers. If you want to use multiple mail servers you have to use MX.

The MX record preference values indicate. A larger preference number is less. Thus, a mail exchanger with a preference of zero (0). Setting. preference values to equal numbers makes mail servers equally.

Example with MX Record Syntax - . Multiple mail serversmydomain. IN MX 0 mydomain. IN MX 3. 0 server. You can have unlimited MX entries for Fallback or backup.

If all the MX records are equal Preference numbers, the. Preference servers in random. MX record with the next highest.

Preference number. PTR Record. A PTR record or pointer record maps an IPv. Setting up a PTR record for a. IP. address implements reverse DNS lookup for that address. For. example www.

IP address 1. 22. PTR. record maps 1.

Example of PTR Record with syntax. IN PTR name. net. Here as you see the IP Address is reversed and added with in- addr. IN PTR. This is mostly used as a security and an anti- spam measure. DNS lookup to check if the host is actually coming from where it. It is always advisable to have a proper.

DNS record (PTR) is been setup for your servers. NS Record. An NS record or name server record maps a domain name to a list. DNS servers authoritative for that domain. Delegations depend. NS records. NS Record Name Server Record which indicates the Authoritative. Name Servers for a particular Domain. The NS records of the.

Authoritative Name Server for any given Domain will be listed on. Parent Server. These are called as the Delegation Records as. Parent Server indicates the delegation of. Authoritative servers. The NS record will also be listed in the Zone records of the. Authoritative Name Server itself. These records are called as.

Authoritative Records. The NS records found on the Parent Server should match the NS.

Authoritative Server as well. However, you can. NS records listed on the Authoritative server that is not.

Parent Server. This arrangement is normally used. Stealth Name Servers. Example of NS Record With syntaxexample. IN NS ns. 1. live. An SOA(State of Authority) Record is the most essential part of. Zone file. The SOA record is a way for the Domain.

Administrator to give out simple information about the domain. A Zone file can contain only one SOA Record. A properly optimized and updated SOA record can reduce bandwidth. DNS server is. down. Example of SOA Record with syntax. Here is the SOA record. Notice the starting bracket ``(``.

This. has to be on the same line, otherwise the record gets broken. IN SOA ns. mynameserver. TTL - 1. 44. 00 - TTL defines the. If it is set as 0, it indicates that the record should.

The range is defined to be between 0 to. Class - IN - The. IN equates to Internet. Other. options are all historic. So as long as your DNS is on the.

Internet or Intranet, you must use IN. Nameserver - . ns. It can be either an external server in which. In case it is defined in this zone file, then it can be.

Email address - . Now, this is really confusing, because people. However in this case. And yes, remember to put the dot behind.

Serial number - 2. This. is a sort of a revision numbering system to show the changes.

DNS Zone. This number has to increment , whenever. Zone file. The standard convention is. YYYYMMDDnn, where nn is a revision. So if. the first update done today would be 2.

Refresh - 8. 60. 00 - . This is time(in seconds) when the slave DNS server will refresh. This value represents how often a secondary. It can be written as ``2. M'' indicating. 2. If you have a regular Internet server. Retry - 7. 20. 0 - Now assume that a.

The Retry value (time in seconds) will. This value is not very important and. Expiry - 3. 60. 00. This is the time.

If this value. were set to say 2 weeks ( in seconds), what it means is that a. The recommended value is between 2 to 4 weeks. Minimum - 6. 00 - This is the default. Zone. file. This is the most important time field in the SOA Record. Otherwise if your DNS record doesn't change regularly. The benefit of keeping this. Caching servers around the globe.

SRV Record. The theory behind SRV is that given a known domain name e. Mcafee Black Antivirus Protection. IN SRV 0 5 8. 0 www. Defines the symbolic service name (see IANA port- numbers).

Case insensitive. Common. values are: . Case insensitive. Common values are . Leaving the entry.

ORIGIN), or you can explicitly add it as in the above . For more information about TTL values. Lowest. is highest priority. Used when more than one service with same priority. A 1. 6 bit. unsigned integer in the range 0 - 6. The value 0 indicates.

If the weight is 1 or greater it. Does not. have to be in the same zone (domain). TXT Record. A TXT record allows an administrator to insert arbitrary text.

DNS record. For example, this record is used to implement. Sender Policy Framework specification. Example of TXT Record with syntax. SPF domains have to publish at least two directives: a version. So we add an . When an SPF MTA sees a blank. HELO. domain name instead.

These records take care of that scenario. Example of NAPTR Record with syntax$ORIGIN 3. NAPTR 1. 0 1. 00 . NAPTR 1. 0 1. 01 .

NAPTR 1. 0 1. 02 . In each case, the regular. AUS (^. As this is a terminal record. URI is returned to the client. Though most NAPTR records. AUS, it is possible for the regular expression.

AUS, to grab an extension number. ORIGIN 0. 6. 9. 2.

Configuring DNSThe following sections describe concepts for configuring DNS to work with Volume Activation: If more than one KMS host is used, see the section “Change the Default DNS Permissions for SRV Records.”To enable KMS clients using different DNS servers to find KMS hosts, see the section “Publish to Multiple DNS Domains.”To manually add SRV resource records for KMS hosts, see the sections “Manually Create SRV Records in DNS,” “Manually Create SRV Records in a BIND 8. Higher DNS Server,” and “Disable Publishing of KMS SRV Records to DNS.”Note   DNS changes may not be reflected until all DNS servers have been replicated. Change the Default DNS Permissions for SRV Records. If you are using only one KMS host, you might not need to configure permissions in DNS.

The default behavior is to allow a computer to create an SRV resource record and then update it. However, if you have more than one KMS host (the usual case), the other hosts will be unable to update the SRV resource record unless SRV default permissions are changed. The following high- level procedure is an example from Microsoft’s own environment. It does not give detailed steps, which might be different from one organization to another, and it is not the only way to achieve the desired result: Create a global security group in Active Directory. An example is Key Management Service Group. Add each of your KMS hosts to this group. They must all be joined to the same domain.

Once the first KMS host is created, it will create the original SRV record. If the first KMS host is unable to create the SRV resource record, it may be because your organization has changed the default permissions. In this case, manually create the SRV resource record as the section “Manually Create SRV Records in DNS” describes. Set the permissions for the SRV group to allow updates by members of the global security group. Note   A domain administrator can delegate the ability to carry out the preceding steps to administrators in the organization.

To do so, create a security group in Active Directory, give that group permission to change the SRV records, and then add the delegates. Publish to Multiple DNS Domains.

By default, the KMS host is registered only in the DNS domain to which the host belongs. If the network environment has only one DNS domain, no further action is required. If there is more than one DNS domain name, a list of DNS domains can be created for a KMS host to use when publishing its SRV RR. Setting this registry value suspends the KMS host’s default behavior of publishing only in the domain specified as the Primary DNS Suffix. Optionally, add priority and weight parameters to the Dns. Domain. Publish. List registry value for KMS. This feature enables an administrator to establish KMS host priority groupings and weighting within each group to define which KMS host to try first and balance traffic among multiple KMS hosts.

Note   DNS changes might not be reflected until all DNS servers have been replicated. Changes made too frequently (time < replication time) can leave older records if the change is performed on a server that has not been replicated. To automatically publish KMS in multiple DNS domains, add each DNS domain suffix to whichever KMS should publish to the multi- string registry value Dns. Domain. Publish. List in HKEY.

After changing the value, restart the Software Licensing Service to create the SRV RRs. Note   This key has changed from the Windows Vista. To verify that this procedure was successful, check the Application event log on each KMS host. Event ID 1. 22. 94 indicates that the KMS host successfully created the SRV RRs.

Event ID 1. 22. 93 indicates that the attempt to create the SRV RRs was unsuccessful. For a complete list of error codes, see the Volume Activation Operations Guide.

Manually Create SRV Records in DNSIf the environment does not support DDNS, the SRV RRs must be manually created to publish the KMS host. Environments that do not support DDNS should disable publishing on all KMS hosts to prevent event logs from collecting failed DNS publishing events. To disable auto- publishing, use the Slmgr. See the “Configuring KMS” section for more information about the Slmgr.

Note   Manually created SRV RRs can coexist with SRV RRs that KMS hosts automatically publish in other domains as long as all records are maintained to prevent conflicts. Using DNS Manager, in the appropriate forwarding lookup zone, create a new SRV RR using the appropriate information for the location. By default, KMS listens on TCP port 1. Table 2 contains example settings for a SRV RR. Table 2   SRV Resource Record.

Name. Setting. Service. When creating the record, include the information shown in Table 3. The Priority and Weight settings shown in Table 3 are only used by Windows 7 and Windows Server 2. R2. Table 3   SRV RR Information.

Name. Setting. Name. For example, add the following line to the zone definition in named.

Note   An allow- update statement can also be added in named. DDNS for all zones hosted on this server. Disable Publishing of KMS SRV Records to DNSKMS hosts automatically publish their existence by creating SRV RRs in DNS. To disable automatic DNS publishing by a KMS host, use the Slmgr. Using the Slmgr. vbs script to disable automatic DNS publishing is preferred, but you can also perform this task by creating a new DWORD value called Disable.

Dns. Publishing in the registry, and set its value to 1. This value is at HKEY. Download Gba Games For Symbian Phones.

To re- enable the default behavior for publishing of KMS SRV records to DNS, set the value to 0.