Commit fdabaa15 authored by Federico G. Schwindt's avatar Federico G. Schwindt

Spelling

parent a88dbf91
...@@ -36,7 +36,7 @@ vcl_fetch by setting do_gzip to true, like this:: ...@@ -36,7 +36,7 @@ vcl_fetch by setting do_gzip to true, like this::
} }
Please make sure that you don't try to compress content that is Please make sure that you don't try to compress content that is
incompressable, like jpgs, gifs and mp3. You'll only waste CPU uncompressable, like jpgs, gifs and mp3. You'll only waste CPU
cycles. You can also uncompress objects before storing it in memory by cycles. You can also uncompress objects before storing it in memory by
setting do_gunzip to *true* but I have no idea why anybody would want setting do_gunzip to *true* but I have no idea why anybody would want
to do that. to do that.
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...@@ -28,7 +28,7 @@ Setting this header can be as simple as:: ...@@ -28,7 +28,7 @@ Setting this header can be as simple as::
} }
There are different commercial and free offerings in doing grouping and There are different commercial and free offerings in doing grouping and
identifiying clients in further detail than this. For a basic and community identifying clients in further detail than this. For a basic and community
based regular expression set, see based regular expression set, see
https://github.com/varnish/varnish-devicedetect/ . https://github.com/varnish/varnish-devicedetect/ .
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...@@ -99,9 +99,9 @@ and facilities Varnish offers. ...@@ -99,9 +99,9 @@ and facilities Varnish offers.
Finally, Murphys Law must be contended with: Things will go wrong, and Finally, Murphys Law must be contended with: Things will go wrong, and
more likely than not, they will do so at zero-zero-dark O'clock. Most more likely than not, they will do so at zero-zero-dark O'clock. Most
likely during a hurricane, when your phones battery is flat and your likely during a hurricane, when your phones battery is flat and your
wife had prepared a intimate evening to celebrate your aniversary. wife had prepared a intimate evening to celebrate your anniversary.
Yes, we've all been there, havn't we? Yes, we've all been there, haven't we?
When things go wrong :ref:`users_trouble` will hopefully be of some help. When things go wrong :ref:`users_trouble` will hopefully be of some help.
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...@@ -5,7 +5,7 @@ Parameters ...@@ -5,7 +5,7 @@ Parameters
Varnish Cache has a set of parameter that affect its behaviour and Varnish Cache has a set of parameter that affect its behaviour and
performance. Most of these parameters can be set on the Varnish performance. Most of these parameters can be set on the Varnish
command line (through varnishadm) useing the param.set keyword. command line (through varnishadm) using the param.set keyword.
Some parameters can, for security purposes be read only using the "-r" Some parameters can, for security purposes be read only using the "-r"
command line switch to varnishd. command line switch to varnishd.
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...@@ -9,7 +9,7 @@ this chapter: We have protected Varnish as well as we can from ...@@ -9,7 +9,7 @@ this chapter: We have protected Varnish as well as we can from
anything which can come in through HTTP socket. anything which can come in through HTTP socket.
If parts of your web infrastructure are outsourced or otherwise If parts of your web infrastructure are outsourced or otherwise
partitioned along adminitrative lines, you need to think about partitioned along administrative lines, you need to think about
security. security.
Varnish provides four levels of authority, roughly related to Varnish provides four levels of authority, roughly related to
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...@@ -3,7 +3,7 @@ ...@@ -3,7 +3,7 @@
Altering the backend response Altering the backend response
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Here we override the TTL of a object comming from the backend if it Here we override the TTL of a object coming from the backend if it
matches certain criteria:: matches certain criteria::
sub vcl_fetch { sub vcl_fetch {
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...@@ -3,7 +3,7 @@ VCL Examples ...@@ -3,7 +3,7 @@ VCL Examples
------------ ------------
These are a short collection of examples that showcase some of the These are a short collection of examples that showcase some of the
capabilites of the VCL language. capabilities of the VCL language.
.. toctree:: .. toctree::
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...@@ -3,7 +3,7 @@ Hashing ...@@ -3,7 +3,7 @@ Hashing
Internally, when Varnish stores content in it's store it uses a hash Internally, when Varnish stores content in it's store it uses a hash
key to find the object again. In the default setup this key is key to find the object again. In the default setup this key is
calculated based on the content of the *Host* header or the IP adress calculated based on the content of the *Host* header or the IP address
of the server and the URL. of the server and the URL.
Behold the default vcl:: Behold the default vcl::
...@@ -19,8 +19,8 @@ Behold the default vcl:: ...@@ -19,8 +19,8 @@ Behold the default vcl::
} }
As you can see it first chucks in req.url then req.http.host if it As you can see it first chucks in req.url then req.http.host if it
exsists. It is worth pointing out that Varnish doesn't lowercase the exists. It is worth pointing out that Varnish doesn't lowercase the
hostname or the URL before hashing it so in thery having Varnish.org/ hostname or the URL before hashing it so in theory having Varnish.org/
and varnish.org/ would result in different cache entries. Browers and varnish.org/ would result in different cache entries. Browers
however, tend to lowercase hostnames. however, tend to lowercase hostnames.
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...@@ -15,7 +15,7 @@ In VCL, there several important objects. ...@@ -15,7 +15,7 @@ In VCL, there several important objects.
*beresp* *beresp*
The backend respons object. It contains the headers of the object The backend respons object. It contains the headers of the object
comming from the backend. Most of the work you do in vcl_fetch you coming from the backend. Most of the work you do in vcl_fetch you
do on the beresp object. do on the beresp object.
*resp* *resp*
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...@@ -16,7 +16,7 @@ the request is being handled by altering the VCL code. You can direct ...@@ -16,7 +16,7 @@ the request is being handled by altering the VCL code. You can direct
certain requests to certains backends, you can alter the requests and certain requests to certains backends, you can alter the requests and
the responses or have Varnish take various actions depending on the responses or have Varnish take various actions depending on
arbitrary properties of the request or the response. This makes arbitrary properties of the request or the response. This makes
Varnish an extremly powerful HTTP processor, not just for caching. Varnish an extremely powerful HTTP processor, not just for caching.
Varnish translates VCL into binary code which is then executed when Varnish translates VCL into binary code which is then executed when
requests arrive. The performance impact of VCL is negligible. requests arrive. The performance impact of VCL is negligible.
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