Contents
Overview
Many accesses from outside via WWW or FTP to
a site with a limited line capacity may cause difficulties to other activities
at the site. If this is the case, starting up a mirror on the server at
Educational Software Development and Use Promotion Center, the center server,
would be of help,
since it reduces accesses to the server at the original site.
It also helps effective use of disks, since decrease in accesses means less
logs and smaller log files.
This service is available to those sites which comply with
the objectives of Educational Software Development and Use Promotion Center
. The service is not necessarily limited to the 100-school project
members.
WWW Mirror Service
Service Details
The details of the service are as follows.
- The URL of a mirror would be
http://www.cec.or.jp/es/mirrors/xxxx
- As a general practice, mirrors are updated weekly.
- The access log to a mirror may be provided, if the source so desires.
- Access control and CGI mirroring are not supported.
Illegal Conditions
Illegal conditions are listed below. If any of them exists, the mirror may not
be created properly. Please pay attention.
- Extensions of files do not match with one of the standard forms of .html,
.gif, .jpg, .jpeg, and so on.
- Data of a new type, such as Java Applet, are included.
- Though reference to a file subordinate to the mirror is made, corresponding
HREF=, in the html text, is not written in the relative form.
FTP Mirror Service
Service Details
The details of the service are as follows.
- The URL of a mirror would be
ftp://ftp.cec.or.jp/pub/mirrors/xxxx
- As a general practice, mirrors are updated weekly.
- The access log to a mirror may be provided, if the source so desires.
Application
To apply for the services, please send an e-mail, bearing the information
listed below, to
webmaster@cec.or.jp
, or
ftpmaster@cec.or.jp
The project administration decides whether or not to accept the request.
The capacity of the center server and the information or contents to be
mirrored are the main factors of consideration.
- Name, Organization, Phone number and E-mail address of the person in
charge.
- URL of the source to be mirrored
- Description about information, objectives, contents of the mirror source
Related Technique
If employed together with mirroring, the techniques listed below may help
effective operations of the servers at the mirror source sites.
We recommend that sites concerned consider use of these techniques.
- Redirection features of a http server.
- Message features of a ftp server.