Difference between revisions of "SME Server:Documentation:Glossary"
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== Glossary == | == Glossary == | ||
| − | Below are some useful terms and their definitions. | + | Below are some useful terms and their brief definitions. For more information refer to the many |
| + | sites on the Internet offering expansion. | ||
| − | ADSL | + | <!--'''ADSL (or DSL)''' |
| + | ADSL is a type of high-speed Internet access that uses regular phone lines | ||
| + | and is available in many metropolitan areas. | ||
| + | '''Domain Name''' | ||
| + | This refers to the unique name attached to your organization on the Internet. | ||
| + | For example, "tofu-dog.com" or "e-smith.com". 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)''' | ||
| + | DNS, or 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. | ||
| + | '''DNS: Publication of DNS Address Records''' | ||
| + | The publication of DNS address information allows other DNS servers to look up | ||
| + | your domain information. Your ISP must publish DNS address records associating the | ||
| + | name of your web server ("www.domain.xxx"), FTP server ("ftp.domain.xxx") and e-mail | ||
| + | server ("mail.domain.xxx") with the IP address of your server. | ||
| + | '''DNS: Publication of DNS Mail (MX) Records''' | ||
| + | The publication of DNS mail (MX) records is the method used to inform Domain Name Services | ||
| + | worldwide that all e-mail to your domain ("yourdomain.xxx") should be delivered to | ||
| + | your e-mail server ("mail.yourdomain.xxx"). | ||
| + | '''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. | ||
| + | === --> | ||
| + | |||
| + | '''ADSL and ADSL2 (or 'DSL')''' | ||
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 | ||
speeds are typically much faster than upload speeds (hence the term "asymmetric"). | speeds are typically much faster than upload speeds (hence the term "asymmetric"). | ||
| − | Domain Name | + | '''Domain Name''' |
This refers to the unique name attached to your organization on the Internet. | 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, | 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. | your ISP can help you select one, ensure it is available, and register it. | ||
| − | DNS | + | '''DNS''' |
Domain Name Service. Refers to the software and protocols involved in translating | 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 | domain names to IP addresses. Your server provides DNS lookup services for your local | ||
| Line 16: | Line 48: | ||
These servers do not need to be configured into your server as the DNS server that is | 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. | provided with your server will correctly resolve all local and Internet names. | ||
| − | ETRN | + | '''ETRN''' |
ETRN is a command used for dialup solutions in order to retrieve e-mail temporarily | ETRN is a command used for dialup solutions in order to retrieve e-mail temporarily | ||
stored at your ISP | stored at your ISP | ||
| − | Gateway IP Address | + | '''Gateway IP Address''' |
A gateway is the device on your network that forwards packets to and from the Internet. | 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. | The gateway IP address is the IP address for that device. | ||
| − | i-bay | + | '''i-bay''' |
Information Bay. A mechanism for creating intranets, extranets, shared directories | Information Bay. A mechanism for creating intranets, extranets, shared directories | ||
and other resources | and other resources | ||
| − | ISDN | + | '''ISDN''' |
Integrated Services Digital Network. Digital modem line. Provides higher speeds than | 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 | K56/V90. Single channel ISDN provides speeds of 56K to 64K. Dual channel ISDN | ||
| − | provides speeds of 110K to 128K. | + | provides speeds of 110K to 128K. Now mostly replaced with versions of DSL. |
| − | ISO | + | '''ISO''' |
1. International Organization for Standardization. | 1. International Organization for Standardization. | ||
| − | Relevant link: www.iso.org - ISO Home Page | + | 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. | 2. ISO followed by a number is used to identify one of the published ISO standards. | ||
| − | Relevant link: www.standardsglossary.com - ISO Standards Glossary, lists all the | + | Relevant link: http://www.standardsglossary.com - ISO Standards Glossary, lists all the |
international standards published by ISO and provides a quick reference for looking | international standards published by ISO and provides a quick reference for looking | ||
up the topic of an ISO standard. | up the topic of an ISO standard. | ||
3. A file containing a complete release of SME Server that is downloaded and | 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 | burned to CD. The CD is then used to install the SME Server Operating System | ||
| − | ISP | + | '''ISP''' |
Internet Service Provider | Internet Service Provider | ||
| − | LDAP | + | '''LDAP''' |
Lightweight Directory Access Protocol | Lightweight Directory Access Protocol | ||
| − | PPTP | + | '''PPTP (see VPN)''' |
| − | Point-to-Point Tunneling Protocol | + | Point-to-Point Tunneling Protocol |
| − | RAID1 | + | Warning: PPTP is completely insecure, deprecated and should be avoided. |
| + | '''RAID1''' | ||
Disk mirroring | Disk mirroring | ||
| − | SCSI | + | '''SCSI''' |
Small Computer Systems Interface | Small Computer Systems Interface | ||
| − | SME | + | '''SME''' |
Small and Medium Enterprise | Small and Medium Enterprise | ||
| − | 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. |
| − | VPN | + | It also supports secure file transfer via sFTP or SCP. |
| − | Virtual Private Network | + | '''VDSL and VDSL2''' |
| + | Very high-speed Digital Subscriber 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. | ||
| + | Userspace Wireguard support is coming soon, Wireguard is now part of the Linux kernel. | ||
Latest revision as of 15:09, 26 April 2021
Glossary
Below are some useful terms and their brief definitions. For more information refer to the many sites on the Internet offering expansion.
ADSL and ADSL2 (or 'DSL')
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. Now mostly replaced with versions of DSL.
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 Subscriber 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. Userspace Wireguard support is coming soon, Wireguard is now part of the Linux kernel.
