1	#
2	# This is a basic VCL configuration file for varnish.  See the vcl(7)
3	# man page for details on VCL syntax and semantics.
4	#
5	# $Id: default.vcl 1424 2007-05-15 19:38:56Z des $
6	#
7	
8	
9	#Backends. We run several services. Two have IP-based hosts, the others are normal namevirtualhost. Define backends:
10	
11	backend www  {
12	        set backend.host = "158.36.78.2";
13	        set backend.port = "81";
14	}
15	
16	backend studkat {
17	        set backend.host = "158.36.78.84";
18	        set backend.port = "81";
19	}
20	
21	backend localhost {
22	        set backend.host = "127.0.0.1";
23	        set backend.port = "81";
24	}
25	
26	sub vcl_hash {
27	        if(req.http.host == "www.hio.no" && req.url == "/" && ! req.http.Referer ~ "hio\.no" && client.ip ~ hio) {
28	                set req.hash += "hio";
29	        }
30	}
31	
32	sub vcl_recv {
33	
34	        #Want to determine backend first:
35	        #First IP4 host
36	        if (req.http.host == "studiekatalog.hio.no" || req.http.host == "158.36.78.84" || req.http.host == "[2001:700:700:2:219:b9ff:fee2:85f9]") {
37	                set req.backend = studkat;
38	        }
39	       
40	        #Second IP4 host
41	        elsif (req.http.host ~ "^(www.)?hio.no$" || req.http.host == "158.36.78.2" || req.http.host ~ "(www.)?ouc.no$" || req.http.host == "[2001:700:700:2:219:b9ff:fee2:85f7]") {
42	                set req.backend = www;
43	        }
44	
45	        #NameVirtualHosts
46	        else {
47	                set req.backend = localhost;
48	        }
49	
50	        #Various redirects
51	        #Check for internal frontpage load, and rewrite to node 27 if no referer
52	        if(req.http.host  ~ "^(www.)?hio.no$" && req.url == "/" && ! req.http.Referer ~ "hio\.no" && client.ip ~ hio) {
53	                set req.url = "/content/view/full/27";
54	        }
55	
56	        #Now, our englishspeaking friends, redirect to english page:
57	        if(req.http.host ~ "(www.)?ouc.no$" && req.url == "/") {
58	                set req.url = "/content/view/full/4563";
59	        }
60	
61	        #Things we MUST do:
62	        #Always cache images, stylesheets and docs.
63	        if (req.url ~ "\.(gif|jpg|swf|css|js|pdf|doc|xsl)$") {
64	                lookup;
65	        }
66	
67	        #VCL trickery, from varnish.linpro.no
68	        #force lookup even when cookies are present
69	        if (req.request == "GET" && req.http.cookie) {
70	                lookup;
71	        }
72	}
73	
74	sub vcl_fetch {
75	       
76	        #Remove cookies from responses altogether:     
77	        remove obj.http.Set-Cookie;
78	
79	        #Make category searches cache a lot longer
80	        if (req.http.host == "studiekatalog.hio.no" && req.url ~ "^/categorysearch/") {
81	                set obj.ttl = 14400s;
82	        }
83	}
84	
85	#ACL for redirect lookup
86	acl hio {
87	        "158.36.98.0"/23;
88	        "158.36.161.0"/24;
89	        "158.36.78.0"/23;
90	        "158.36.108.0"/23;
91	        "158.36.118.0"/23;
92	        "158.36.144.0"/22;
93	        "128.39.73.0"/23;
94	        "128.39.75.0"/24;
95	        "128.39.89.0"/24;
96	        #"2001:700:700::"/48; #IPv6 not supported by varnish atm.... :(
97	}