A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

The process of installing software on a computer/server. Can also refer to the process of installing hardware, e.g. in a datacenter.
1537 questions
A command-line interface (CLI) is a mechanism for interacting with a computer operating system or software by typing commands to perform specific tasks.
1529 questions
An IMAP and POP3 email server. When asking about Dovecot problems, please include relevant maillog lines and output of the following command: `doveconf -n`
TCP stands for Transmission Control Protocol and is one of the core protocols of the Internet Protocol Suite. TCP complements the Internet Protocol (IP), and therefore the entire suite is commonly ref…
A location or process for storing of transitory or temporary data in order to improve application or system performance.
1509 questions
Rsync is a fast and extraordinarily versatile file copying tool. It can copy locally, to/from another host over any remote shell, or to/from a remote rsync daemon
1506 questions
Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the use…
FreeBSD is an advanced operating system for a variety of architectures. It is derived from BSD, the version of UNIX® developed at the University of California, Berkeley; and is developed and maintaine…
1501 questions
Software and/or protocols allowing a user to access the graphical desktop on a system from a remote computer. Common protocols are RDP from Microsoft, and RFB (used by VNC).
1495 questions
A domain controller is a server in a Microsoft Active Directory or NT4 domain that is responsible for central authentication.
HP (Hewlett-Packard) is a server and network equipment manufacturer. This is a generic tag to be used when discussing HP hardware or software with no more specific tag available - See the list in the…
1476 questions
a device that bridges network segments, operating at the OSI link layer level.
1445 questions
OpenSSL: The Open Source Toolkit for SSL and TLS
1439 questions
A shared resource or network share is a device or piece of information on a computer that can be remotely accessed from another computer, typically via a local area network or an enterprise Intranet, …
The Apache HTTPd Server. When asking questions about virtualhosts, please include the output of the following command: "apache2ctl -S" (or "httpd -S" depending on your OS)
Ansible is an open-source software platform for configuring and managing computers. It combines multi-node software deployment, ad-hoc task execution, and configuration management.
YUM is an open-source command-line package-management utility for RPM-compatible Linux operating systems.
1407 questions
In computer storage, Logical Volume Management or LVM provides a method of allocating space on mass-storage devices that is more flexible than conventional partitioning schemes.
httpd is a typical process name of a web server.
1379 questions
Unsolicited e-mail, comments or posts, often sent out in large volumes; possibly but not necessarily commercial in nature
In the Domain Name System (DNS) hierarchy, a subdomain is a domain that is part of a larger domain.[1]
1345 questions
OpenLDAP Software is a free, open source implementation of the Lightweight Directory Access Protocol (LDAP) developed by the OpenLDAP Project. LDAP is a platform-independent protocol for querying and …
The acronym SVN stands for Subversion, a very common and popular Version Control System.
1329 questions
Squid is a FOSS package licensed under the GNU GPL and is primarily used as a web proxy server and cache.
Google Compute Engine offers scalable and flexible virtual machine computing capabilities in the cloud.
A computer cluster consists of a set of loosely connected computers that work together so that in many respects they can be viewed as a single system.
1295 questions
A shell is terminology for a command-line interpreter most commonly used with Unix-like operating systems, but also used to interact with GUI-based operating systems in a more granular fashion. No…
ZFS is a modern file system and volume manager originally developed by Sun Microsystems and licensed under the CDDL. It is a copy-on-write file system with support for large storage arrays, protection…
1284 questions
General purpose email routing software that supports mail transport via TCP/IP using SMTP
1277 questions
port-forwarding on firewall or via SSH
Nagios is a monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.
1274 questions
vSphere is an enterprise level virtualization solution. It acts as the cloud computing OS managing a set of VMware ESXi-based hosts.
1256 questions
Database language for managing data in relational database management systems (RDBMS). Note that each database implements SQL with slight variations. Please remember to tag with your specific databa…
1253 questions
WiFi is a layer 1 and 2 networking protocol for wireless communication between devices. It is typically used in local networks for client access, but can also be used in point-to-point network links. …
1241 questions
systemd is a modern replacement for the traditional Linux init. Its main features include the ability to express dependencies between services and aggressive parallelization of service startup.
Deployment is the process or collection activities that make a system available for use.