How WordPress installs varnish acceleration under CentOS server

Varnish is a high-performance open-source HTTP accelerator, Norway's largest online newspaper Verdens Gang (http://www.vg.no) using 3 units varnish replaced the original 12 squid, performance is even better than before. Visible varnish is a rather powerful accelerator. Roy is here to introduce how to install varnish on CentOS to speed up your WordPress blog.

1, install Varnsih

Use SSH to log in to your VPS and execute the following command to install varnish:

Yum Install varnish

And then we start varnish:

/etc/init.d/varnish start

Set to boot:

Chkconfig–level 345 Varnish on

2, configure varnish

Open DEFAULT.VCL:

Nano/etc/varnish/default.vcl

Confirm that the default DEFAULT.VCL matches the following code:

# Back-end Backend default {. Host = "127.0.0.1";. Port = "n";. connect_timeout = 60s;. First_byte_timeout = 10s;. b Etween_bytes_timeout = 10s; } # Custom Sub vcl_recv {remove req.http.x-forwarded-for; set req.http.x-forwarded-for = Client.ip; if (req.url ~ "^/wp-" ( login|admin) "") {return (pipe);} if (Req.http.Cookie ~ "(wp-postpass|wordpress_logged_in|comment_author_)") {return ( Pipe); } if (req.request = "POST") {return (pass),} if (Req.http.cache-control ~ "No-cache") {return (pass);} if (Req.http.a Uthorization) {return (pass);} if (Req.url ~). ( JPG|JPEG|GIF|PNG|ICO|CSS|ZIP|TGZ|GZ|RAR|BZ2|PD f|txt|tar|wav|bmp|rtf|js|flv|swf|htm|html) $ ") {unset Req.http.Cookie; Unset req.http.accept-encoding; Unset req.http.Vary; return (lookup); } if (req.http.accept-encoding) {if (Req.url ~). ( Jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg) $ ") {remove req.http.accept-encoding;} elsif (req.http.accept-encoding ~" gzip ") { Set req.http.accept-encoding = "gzip"; } elsif (req.http.accept-encoding ~ "Deflate") {Set req.http.accept-encoding = "deflate";} else {remove req.http.accept-encoding;}} if (req.backend.healthy) {Set req.grace = 30s;} else {set req.grace = 1h;} unset Req.http.Cookie; Unset req.http.Vary; return (lookup); Sub Vcl_fetch {Set beresp.grace = 1h; unset beresp.http.set-cookie; if (req.url ~). JPG|JPEG|GIF|PNG|ICO|CSS|ZIP|TGZ|GZ|RAR|BZ2|PD f|txt|tar|wav|bmp|rtf|js|flv|swf|htm|html) $ ") {set beresp.ttl = 24h;} else {Set beresp.ttl = 5m;} return (deliver); Sub Vcl_deliver {if (obj.hits > 0) {Set resp.http.x-cache = ' HIT ';} else {Set resp.http.x-cache = ' MISS ';} set re Sp.http.cache-control = "private"; Set resp.http.Pragma = "Private"; Remove Resp.http.x-varnish; Remove Resp.http.Via; Remove Resp.http.Age; Remove Resp.http.Server; Remove resp.http.x-powered-by; Sub Vcl_pipe {Set bereq.http.connection = ' close '; Restart varnish to take effect:/etc/init.d/varnish restart