Syntax:
CacheSize <size>
Default:
CacheSize 5
Context:
server config, virtual host
Override:
Not applicable
Status:
Base
Module:
mod_proxy
Compatibility:
CacheSize is only available in Apache 1.1 and later.
Sets
the desired space usage of the cache, in KB (1024-byte units). Although
usage may grow above this setting, the garbage collection will delete files
until the usage is at or below this setting.
CacheGcInterval
Syntax:
CacheGcInterval <time>
Default:
None
Context:
server config, virtual host
Override:
Not applicable
Status:
Base
Module:
mod_proxy
Compatibility:
CacheGcinterval is only available in Apache 1.1 and later.
Check
the cache every <time> hours, and delete files if the space usage is
greater than that set by CacheSize.
CacheMaxExpire
Syntax:
CacheMaxExpire <time>
Default:
CacheMaxExpire 24
Context:
server config, virtual host
Override:
Not applicable
Status:
Base
Module:
mod_proxy
Compatibility:
CacheMaxExpire is only available in Apache 1.1 and later.
Cachable
HTTP documents will be retained for at most <time> hours without checking
the origin server. Thus documents can be at most <time> hours out of
date. This restriction is enforced even if an expiry date was supplied
with the document.
CacheLastModifiedFactor
Syntax:
CacheLastModifiedFactor <factor>
Default:
CacheLastModifiedFactor 0.1
Context:
server config, virtual host
Override:
Not applicable
Status:
Base
Module:
mod_proxy
Compatibility:
CacheLastModifiedFactor is only available in Apache 1.1 and later.
If the origin HTTP server did not supply an expiry date for the document, then estimate one using the formula
expiry-period = time-since-last-modification * <factor>
For
example, if the document was last modified 10 hours ago, and <factor>
is 0.1, then the expiry period will be set to 10*0.1 = 1 hour. If the expiry-period
would be longer than that set by CacheMaxExpire, then the latter takes
precedence.
CacheDirLevels
Syntax:
CacheDirLevels <levels>
Default:
CacheDirLevels 3
Context:
server config, virtual host
Override:
Not applicable
Status:
Base
Module:
mod_proxy
Compatibility:
CacheDirLevels is only available in Apache 1.1 and later.
CacheDirLevels
sets the number of levels of subdirectories in the cache. Cached data will
be saved this many directory levels below CacheRoot.
CacheDirLength
Syntax:
CacheDirLength <length>
Default:
CacheDirLength 1
Context:
server config, virtual host
Override:
Not applicable
Status:
Base
Module:
mod_proxy
Compatibility:
CacheDirLength is only available in Apache 1.1 and later.
CacheDirLength
sets the number of characters in proxy cache subdirectory names.
CacheDefaultExpire
Syntax:
CacheDefaultExpire <time>
Default:
CacheDefaultExpire 1
Context:
server config, virtual host
Override:
Not applicable
Status:
Base
Module:
mod_proxy
Compatibility:
CacheDefaultExpire is only available in Apache 1.1 and later.
If
the document is fetched via a protocol that does not support expiry times,
then use <time> hours as the expiry time. CacheMaxExpire does not override
this setting.
NoCache
Syntax:
NoCache <word/host/domain list>
Default:
None
Context:
server config, virtual host
Override:
Not applicable
Status:
Base
Module:
mod_proxy
Compatibility:
NoCache is only available in Apache 1.1 and later.
The NoCache directive specifies a list of words, hosts and/or domains, separated by spaces. HTTP and non-passworded FTP documents from matched words, hosts or domains are not cached by the proxy server. The proxy module will also attempt to determine IP addresses of list items which may be hostnames during startup, and cache them for match test as well. Example:
NoCache joes_garage.com some_host.co.uk bullwinkle.wotsamattau.edu
'bullwinkle.wotsamattau.edu'
would also be matched if referenced by IP address.
Note
that 'wotsamattau' would also be sufficient to match 'wotsamattau.edu'.
Note also that
NoCache *
disables
caching completely.
Port 8000
ProxyRequests on
ProxyRemote http://www.fujitsu.com
http://gandalf.uccs.edu:8000
CacheRoot /home/chow/site.proxy/cache
CacheSize 2000
TransferLog /home/chow/site.proxy/proxy/logs/access_log
Syntax: ProxyRemote
<match> <remote-server>
Default: None
Context: server
config, virtual host
Override: Not applicable
Status: Base
Module: mod_proxy
(version 1.1) or modules/proxy (version 1.2)
Compatibility: ProxyRemote
is only available in Apache 1.1 and later.
This defines remote proxies to this proxy. <match> is either the name of a URL-scheme that the remote server supports, or a partial URL for which the remote server should be used, or '*' to indicate the server should be contacted for all requests. <remote-server> is a partial URL for the remote server.
Syntax:
<remote-server> = <protocol>://<hostname>[:port]
<protocol> is the protocol that should be used to communicate with the remote server; only "http" is supported by this module.
Example:
ProxyRemote
http://goodguys.com/ http://mirrorguys.com:8000
ProxyRemote
* http://cleversite.com
ProxyRemote
ftp http://ftpproxy.mydomain.com:8080
In the last example,
the proxy will forward FTP requests, encapsulated as yet another HTTP proxy
request, to another proxy which can handle them.
static const
char table[64]=
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_@";
MD5Init(&context);
MD5Update(&context, (const unsigned char *)it, strlen(it));
MD5Final(digest, &context);
/* encode 128 bits
as 22 characters, using a modified uuencoding */
/* the encoding
is 3 bytes -> 4 characters
* i.e. 128
bits is 5 x 3 bytes + 1 byte -> 5 * 4 characters + 2 characters
*/
for (i=0, k=0; i < 15; i += 3)
{
x = (digest[i] << 16) | (digest[i+1] << 8) | digest[i+2];
tmp[k++] = table[x >> 18];
tmp[k++] = table[(x >> 12) & 0x3f];
tmp[k++] = table[(x >> 6) & 0x3f];
tmp[k++] = table[x & 0x3f];
}
/* one byte left */
x = digest[15];
tmp[k++] = table[x >> 2]; /* use up 6 bits */
tmp[k++] = table[(x << 4) & 0x3f];
/* now split into directory levels */
for(i=k=d=0 ; d < ndepth ; ++d)
{
strncpy(&val[i],&tmp[k],nlength);
k+=nlength;
val[i+nlength]='/';
i+=nlength+1;
}
GIF89a\^@^T^@Õÿ^@ÿÿÿÌÌ~YËÊ~X·°~D ...
The first hexadecmical string, 3501C618, is equivalent to 889308696 seconds since 1970, 1,1. You can use hex2dec() in MS Excell spreadsheet to compute this. It is 10292.92 days and 28.20 years from 1970. That matches with the 07 Mar 1998 date.
The expiration date string, 350317C2, is equivalent to 10293.93 days and it is 1day after the date of reqeust.