Difference between revisions of "SME Server:Documentation:Glossary"
From SME Server
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Below are some useful terms and their definitions. | Below are some useful terms and their definitions. | ||
| − | ADSL | + | ADSL and ADSL2 |
Asymmetric Digital Subscriber Line. ADSL is a technology to transmit digital | Asymmetric Digital Subscriber Line. ADSL is a technology to transmit digital | ||
information at high bandwidths across existing copper phone lines. Download | information at high bandwidths across existing copper phone lines. Download | ||
| Line 43: | Line 43: | ||
LDAP | LDAP | ||
Lightweight Directory Access Protocol | Lightweight Directory Access Protocol | ||
| − | PPTP | + | PPTP (see VPN) |
| − | Warning: PPTP is insecure, deprecated and should be avoided | + | Point-to-Point Tunneling Protocol |
| − | + | Warning: PPTP is completely insecure, deprecated and should be avoided. | |
RAID1 | RAID1 | ||
Disk mirroring | Disk mirroring | ||
| Line 54: | Line 54: | ||
SSH | SSH | ||
Secure shell. A secure, encrypted way to log in to a remote machine across a network, | Secure shell. A secure, encrypted way to log in to a remote machine across a network, | ||
| − | or to copy files from a local machine to a server | + | or to copy files from a local machine to a server. It also supports secure file transfer via sFTP or SCP. |
| + | VDSL and VDSL2 | ||
| + | Very high-speed Digital Dubscriber Line. VDSL can provide up to 52 Mbit/s down and 16 Mbit/s up. VDSL2 can reach rates up to 300+ Mbit/s downstream and upstream. | ||
VPN | VPN | ||
| − | Virtual Private Network | + | Virtual Private Network |
| + | Currently directly supported protocol is OpenVPN; IPsec/xl2tpd are available as contribs, and coming soon userspace Wireguard support, Wireguard is now part of the Linux kernel. | ||
Revision as of 16:28, 24 April 2021
Glossary
Below are some useful terms and their definitions.
ADSL and ADSL2
Asymmetric Digital Subscriber Line. ADSL is a technology to transmit digital information at high bandwidths across existing copper phone lines. Download speeds are typically much faster than upload speeds (hence the term "asymmetric").
Domain Name
This refers to the unique name attached to your organization on the Internet. For example, "tofu-dog.com" or "contribs.org". If you don't have a domain name, your ISP can help you select one, ensure it is available, and register it.
DNS
Domain Name Service. Refers to the software and protocols involved in translating domain names to IP addresses. Your server provides DNS lookup services for your local network, and your ISP typically also provides you with the IP addresses of DNS servers. These servers do not need to be configured into your server as the DNS server that is provided with your server will correctly resolve all local and Internet names.
ETRN
ETRN is a command used for dialup solutions in order to retrieve e-mail temporarily stored at your ISP
Gateway IP Address
A gateway is the device on your network that forwards packets to and from the Internet. The gateway IP address is the IP address for that device.
i-bay
Information Bay. A mechanism for creating intranets, extranets, shared directories and other resources
ISDN
Integrated Services Digital Network. Digital modem line. Provides higher speeds than K56/V90. Single channel ISDN provides speeds of 56K to 64K. Dual channel ISDN provides speeds of 110K to 128K.
ISO
1. International Organization for Standardization. Relevant link: http://www.iso.org - ISO Home Page 2. ISO followed by a number is used to identify one of the published ISO standards. Relevant link: http://www.standardsglossary.com - ISO Standards Glossary, lists all the international standards published by ISO and provides a quick reference for looking up the topic of an ISO standard. 3. A file containing a complete release of SME Server that is downloaded and burned to CD. The CD is then used to install the SME Server Operating System
ISP
Internet Service Provider
LDAP
Lightweight Directory Access Protocol
PPTP (see VPN)
Point-to-Point Tunneling Protocol Warning: PPTP is completely insecure, deprecated and should be avoided.
RAID1
Disk mirroring
SCSI
Small Computer Systems Interface
SME
Small and Medium Enterprise
SSH
Secure shell. A secure, encrypted way to log in to a remote machine across a network, or to copy files from a local machine to a server. It also supports secure file transfer via sFTP or SCP.
VDSL and VDSL2 Very high-speed Digital Dubscriber Line. VDSL can provide up to 52 Mbit/s down and 16 Mbit/s up. VDSL2 can reach rates up to 300+ Mbit/s downstream and upstream. VPN
Virtual Private Network Currently directly supported protocol is OpenVPN; IPsec/xl2tpd are available as contribs, and coming soon userspace Wireguard support, Wireguard is now part of the Linux kernel.
