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Some DNS server packages have overcome this problem by automatically constructing the serial number from the last modification timestamp of the database file on disk. This is the case for djbdns, for example. The operating system ensures that the last modification timestamp is updated whenever an administrator edits the database file ...
RNAME Email address of the administrator responsible for this zone. (As usual, the email address is encoded as a name. The part of the email address before the @ becomes the first label of the name; the domain name after the @ becomes the rest of the name.
State-based CRDTs (also called convergent replicated data types, or CvRDTs) are defined by two types, a type for local states and a type for actions on the state, together with three functions: A function to produce an initial state, a merge function of states, and a function to apply an action to update a state.
Replication involves using specialized software that looks for changes in the distributive database. Once the changes have been identified, the replication process makes all the databases look the same. The replication process can be complex and time-consuming, depending on the size and number of the distributed databases.
dig is a network administration command-line tool for querying the Domain Name System (DNS). dig is useful for network troubleshooting and for educational purposes. [ 2 ] It can operate based on command line option and flag arguments, or in batch mode by reading requests from an operating system file.
Contains the DNSSEC signature for a record set. DNS resolvers verify the signature with a public key, stored in a DNSKEY record. DNSKEY Contains the public key that a DNS resolver uses to verify DNSSEC signatures in RRSIG records. DS (delegation signer) Holds the name of a delegated zone. References a DNSKEY record in the sub-delegated zone.
A name can be any string such as "com.example.ejb.MyBean". A name can also be an object that implements the Name interface; however, a string is the most common way to name an object. A name is bound to an object in the directory by storing either the object or a reference to the object in the directory service identified by the name.
Some researchers have made a functional and experimental analysis of several distributed file systems including HDFS, Ceph, Gluster, Lustre and old (1.6.x) version of MooseFS, although this document is from 2013 and a lot of information are outdated (e.g. MooseFS had no HA for Metadata Server at that time).