DevOps :: DevSecOps

What is "LDIF" ?. The LDAP Interchange Format (LDIF) is a standard text file format for storing LDAP configuration information and directory contents. LDIF files are often used to import new data into your directory or make changes to existing data. Name the object class types?. Structural Object class Auxiliary Object class Abstract object classes Why LDAP is called light weight?. LDAP (Lightweight Directory Access Protocol) is a protocol for communications between LDAP servers and LDAP clients. LDAP servers store "directories" which are access by LDAP clients.LDAP is called lightweight because it is a smaller and easier protocol which was derived from the X.500 DAP What is SLAPD? SLAPD stands for Stand-Alone LDAP.Clients connect to the server over the LDAP protocol, usually using a network-based connection (though SLAPD provides a UNIX socket listener). Which daemons are required for LDAP server? slapd and slurpd Tell me the name of three

Q.Explain DKIM? Ans: DomainKeys Identified Mail (DKIM) is a method for associating a domain name to an email message, thereby allowing a person, role, or organization to claim some responsibility for the message.The organization is a handler of the message, either as its originator or as an intermediary.Technically DKIM provides a method for validating a domain name identity that is associated with a message through cryptographic authentication.DKIM attaches a new domain name identifier to a message and uses cryptographic techniques to validate authorization for its presence. The identifier is independent of any other identifier in the message, such in the author's From: field. DKIM defines an authentication mechanism for email, using:      a.A domain name identifier      b.Public-key cryptography      c.A DNS-based public key publishing service. An agent in the message transit path can sign the message content and selected header fields. The signature information is placed into

What is Nagios and how it Works ?. Nagios is an open source System and Network Monitoring application.Nagios runs on a server, usually as a daemon or service. Nagios periodically run plugins residing (usually) on the same server, they contact (PING etc.) hosts and servers on your network or on the Internet. You can also have information sent to Nagios. You then view the status information using the web interface. You can also receive email or SMS notifications if something happens. Event Handlers can also be configured to "act" if something happens.The Nagios daemon behaves like a scheduler that runs certain scripts at certain moments. It stores the results of those scripts and will run other scripts if these results change. All these scripts are, of course, the scripts from the Nagios plug-in project or are scripts that you have created. Explain Main Configuration file and its location? Resource File  : It is used to store sensitive information like username,passwor

Q. What is Network? Ans: A network is simply a collection of computers or other hardware devices that are connected together, either physically or logically, using special hardware and software, to allow them to exchange information and cooperate. Networking is the term that describes the processes involved in designing, implementing, upgrading, managing and otherwise working with networks and network technologies. Q. What are The Advantages (Benefits) and Disadvantages (Costs) of Networking? Ans: Most of the benefits of networking can be divided into two generic categories: connectivity and sharing. Networks allow computers, and hence their users, to be connected together. They also allow for the easy sharing of information and resources, and cooperation between the devices in other ways. Since modern business depends so much on the intelligent flow and management of information, this tells you a lot about why networking is so valuable. Here, in no particular o