I have a varnish 3.xx server which currently works.
Varnish is caching the login page of my site.
www.mysite.com/staff
but it may have different urls depending on the staff members link, for example
www.mysite.com/staff/index.php?/Tickets/Ticket/View/222200
My varnish config file is set as follows to exclude caching the staff page, but it is not working, as it is caching the login page and it is will not login untill i restart varnish to clear it's cache.
sub vcl_recv {
# Allow purge only from internal users
if (req.request == "PURGE") {
if (!client.ip ~ internal_net) {
error 405 "Not allowed.";
}
return (lookup);
# Exclude the following
if (req.url ~ "^/login\.php" ||
req.url ~ "^/search\.php" ||
req.url ~ "^/admin(.*)" ||
req.url ~ "^/admin(.*)" ||
req.url ~ "^/search(.*)" ||
req.url ~ "^/visitor(.*)" ||
req.url ~ "^/staff(.*)" ||
req.url ~ "^/staff\.php"
) {
return(pass);
}
if (req.http.cookie ~ "vb(.*)" ||
req.http.cookie ~ "bb(.*)" ||
req.http.cookie ~ "SWIFT_(.*)" ||
req.url ~ "\?(.*\&)?s=[a-fA-F0-9]{32}(\&|$)" ||
req.http.cookie ~ "bb_password") {
return(pass);
} else {
unset req.http.cookie;
}
}
Do you perhaps have another method to exclude and entire directory from being cached?
IE: everything from /staff no matter what the suffix is after that must not be cached
The exclusion should work perfectly the way you have implemented it. However if the code you pasted is your actual VCL you have an open if() statement in the PURGE section.
sub vcl_recv {
# Allow purge only from internal users
if (req.request == "PURGE") {
if (!client.ip ~ internal_net) {
error 405 "Not allowed.";
}
return (lookup);
# Exclude the following
should read
sub vcl_recv {
# Allow purge only from internal users
if (req.request == "PURGE") {
if (!client.ip ~ internal_net) {
error 405 "Not allowed.";
}
return (lookup);
}
# Exclude the following
Varnish should not accept invalid VCL though, so if the error does not exist in your actual VCL, please update the question with your entire VCL.
Related
curl command:
curl -X PURGE <URL>
so it is possible to clear only one page
how to clean the all cache by using CURL?
Add this VCL and then you can use "curl -X BANRE ." to clear the cache.
sub vcl_recv {
if (req.method == "BANRE") {
# Same ACL check as above:
if (!client.ip ~ purge) {
return(synth(403, "Not allowed."));
}
ban("req.url ~ " + req.url).
return(synth(200, "Ban added"));
}
}
(varnish 3) I was able to clear the all cache so
if (req.request == "BAN") {
if (!client.ip ~ purge) {
# Not from an allowed IP? Then die with an error.
error 405 "This IP is not allowed to send PURGE requests.";
}
ban("req.http.host == " +req.http.host+" && req.url ~ "+req.url);
error 200 "Ban added";
}
curl -X BAN http://domain.com/.
After reading the varnish 4.1 document, I found that I can set 'req.hash_always_miss' to true to force a 'miss' while looking up cache and fetch the latest content in backend.
But I still can not figure out how to configure the vcl file.
below is the config file in my server.
backend default {
.host = "127.0.0.1";
.port = "8080";
}
acl purgers {
"localhost";
}
sub vcl_recv {
if (req.method == "PURGE") {
if (!client.ip ~ purgers) {
return(synth(405,"Not allowed."));
}
set req.hash_always_miss = true;
}
}
sub vcl_backend_response {
unset beresp.http.set-cookie;
set beresp.ttl = 1d;
}
while backend content change, I want to refresh the varnish cache before it get expired.
so I call curl -X PURGE http://localhost:6081/path/to/my/content
I do get the latest content as a response, but I found that varnish cache is still not get refreshed. Can someone tell me why? thanks
We are trying to get Varnish to cache range requests. We are using Varnish 4.0.
We the following configurations
vcl 4.0;
import std;
# Default backend definition. Set this to point to your content server.
backend default {
.host = "194.142.x.x";
.port = "8008";
}
sub vcl_recv {
if (req.url ~ "(?i)\.(png|avi|mkv|mp4)(\?[a-z0-9]+)?$") {
unset req.http.Cookie;
}
# Happens before we check if we have this in cache already.
#
# Typically you clean up the request here, removing cookies you don't need,
# rewriting the request, etc.
set req.http.host = regsub(req.http.host, "v\.","\rms\.");
std.log("REWRITED TO"+req.http.host+" "+req.url);
}
sub vcl_backend_response {
# Happens after we have read the response headers from the backend.
#
# Here you clean the response headers, removing silly Set-Cookie headers
# and other mistakes your backend does.
}
sub vcl_deliver {
# Happens when we have all the pieces we need, and are about to send the
# response to the client.
#
vcl 4.0;
import std;
# Default backend definition. Set this to point to your content server.
backend default {
.host = "194.142.x.x";
.port = "8008";
}
sub vcl_recv {
if (req.url ~ "(?i)\.(png|avi|mkv|mp4)(\?[a-z0-9]+)?$") {
unset req.http.Cookie;
}
# Happens before we check if we have this in cache already.
#
# Typically you clean up the request here, removing cookies you don't need,
# rewriting the request, etc.
set req.http.host = regsub(req.http.host, "v\.","\rms\.");
std.log("REWRITED TO"+req.http.host+" "+req.url);
}
sub vcl_backend_response {
# Happens after we have read the response headers from the backend.
#
# Here you clean the response headers, removing silly Set-Cookie headers
# and other mistakes your backend does.
}
sub vcl_deliver {
# Happens when we have all the pieces we need, and are about to send the
# response to the client.
#
how ever range requests are taking too long to be served so we feel its not being cached as the original server is hit.
Can you solve this...?
I'm pretty sure the block config:
if (req.url ~ "(?i)\.(png|avi|mkv|mp4)(\?[a-z0-9]+)?$") {
unset req.http.Cookie;
}
# Happens before we check if we have this in cache already.
#
# Typically you clean up the request here, removing cookies you don't need,
# rewriting the request, etc.
set req.http.host = regsub(req.http.host, "v\.","\rms\.");
std.log("REWRITED TO"+req.http.host+" "+req.url);
Are in wrong position, needs to be in vcl_backend_response not in vcl_recv
Caching partial objects with varnish 4.0
sub vcl_recv {
if (req.http.Range ~ "bytes=") {
set req.http.x-range = req.http.Range;
}
}
sub vcl_hash {
if (req.http.x-range ~ "bytes=") {
hash_data(req.http.x-range);
unset req.http.Range;
}
}
sub vcl_backend_fetch {
if (bereq.http.x-range) {
set bereq.http.Range = bereq.http.x-range;
}
}
sub vcl_backend_response {
if (bereq.http.x-range ~ "bytes=" && beresp.status == 206) {
set beresp.ttl = 10m;
set beresp.http.CR = beresp.http.content-range;
}
}
sub vcl_deliver {
if (resp.http.CR) {
set resp.http.Content-Range = resp.http.CR;
unset resp.http.CR;
}
}
I'm having a problem with the purge configuration in Varnish. I have a purge URL configured as below, but on attempting to start the service I get an error, also below. If I comment out this piece of config, the service starts without issue. Does anyone have any ideas where I'm going wrong?
Cheers.
sub vcl_recv {
#purge all
if (req.request == "PURGE") {
if (!client.ip ~ purge) {
error 405 "Not allowed.";
}
if (req.url ~ "varnish/index/purgeall/key/#Fj1nzljh") {
purge_hash( ".*" );
}
}
The error message on start reads:
user#ubuntu:/var/www$ sudo service varnish start
* Starting HTTP accelerator varnishd [fail]
storage_file: filename: /var/lib/varnish/ubuntu/varnish_storage.bin size 1024 MB.
Message from VCC-compiler:
Expected an action, 'if', '{' or '}'
(input Line 18 Pos 7)
purge_hash( ".*" );
------##########---------
Running VCC-compiler failed, exit 1
VCL compilation failed
mark#ubuntu:/var/www$ sudo service varnish start
* Starting HTTP accelerator varnishd [fail]
storage_file: filename: /var/lib/varnish/ubuntu/varnish_storage.bin size 1024 MB.
Message from VCC-compiler:
Expected an action, 'if', '{' or '}'
(input Line 18 Pos 7)
purge_hash( ".*" );
The correct way to do this in 3.0.x is something like this:
acl our_lan {
"localhost";
"10.0.0.0"/8;
"192.168.0.0"/16;
}
sub vcl_recv {
# ...
if (req.request == "PURGE") {
if (! (client.ip ~ our_lan)) {
error 405 "Not allowed.";
}
return (lookup);
}
# ...
}
sub vcl_hit {
if (req.request == "PURGE") {
purge;
error 200 "Purged.";
}
}
sub vcl_miss {
if (req.request == "PURGE") {
error 200 "OK: but URL not in cache.";
}
}
YMMV.
purge_hash seems to have been removed in latest versions of varnish http://www.varnish-cache.org/trac/changeset/e20226fa977bb3e05d49b4e497a0b9f64ca5f272
it seems that you want to clear the whole cache, you can achieve it with the other purge functions
I have been Googling aggressively, but without luck.
I'm using Varnish with great results, but I would like to host multiple websites on a single server (Apache), without Varnish caching all of them.
Can I specify what websites by URL to cache?
Thanks
(edited after comment) It's req.http.host, so in your vcl file (e.g. default.vcl) do:
sub vcl_recv {
# dont cache foo.com or bar.com - optional www
if (req.http.host ~ "(www\.)?(foo|bar)\.com") {
pass;
}
# cache foobar.com - optional www
if (req.http.host ~ "(www\.)?foobar\.com") {
lookup;
}
}
And in varnish3-vcl:
sub vcl_recv {
# dont cache foo.com or bar.com - optional www
if (req.http.host ~ "(www\.)?(foo|bar)\.com") {
return(pass);
}
# cache foobar.com - optional www
if (req.http.host ~ "(www\.)?foobar\.com") {
return(lookup);
}
}
Yes,
in vcl_recv you just match the hosts that you would like not to cache and pass them. Something like this (untested):
vcl_recv {
# dont cache foo.com or bar.com - optional www
if (req.host ~ "(www)?(foo|bar).com") {
return(pass);
}
}
For Varnish 4
replace lookup with hash
default.vcl:
sub vcl_recv {
# dont cache foo.com or bar.com - optional www
if (req.http.host ~ "(www\.)?(foo|bar)\.com") {
return(pass);
}
# cache foobar.com - optional www
if (req.http.host ~ "(www\.)?foobar\.com") {
return(hash);
}
}