wiki:TipAndDoc/network/proxy/squid

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Version 5 (modified by mitty, 11 years ago) (diff)
--

no disk cache
forward proxy with SSL
1. --enable-ssl
2. install debs

Squid のキャッシュオブジェクトを解析する
nginx+squidで画像キャッシュサーバーの作り方 - Perlとかmemoとか日記とか。

仕事で画像キャッシュサーバーを構築した時のメモ。大規模事例の設定例が検索してもあまり見つからなかったので同じような境遇の誰かの参考になれば。

Freak: Squidのメモ（キャッシュしない設定）

no disk cache

~~Ubuntu 12.04 (3.1.19-1ubuntu3.12.04.1)ではcache_dir nullは使用できない~~
- $ squid3 -v
```
Squid Cache: Version 3.1.19
configure options: ... '--enable-storeio=ufs,aufs,diskd' ...
```
- http://wiki.squid-cache.org/SquidFaq/ConfiguringSquid#Can_I_make_Squid_proxy_only.2C_without_caching_anything.3F
```
With Squid-2.7, Squid-3.1 and later you can also remove all 'cache_dir' options from your squid.conf to avoid having a cache directory.
```
- squid : cache_dir configuration directive
  
  'null' storage type dropped. In-memory cache is always present. Remove all cache_dir options to prevent on-disk caching.

forward proxy with SSL

http://wiki.squid-cache.org/Features/HTTPS#Encrypted_browser-Squid_connection

Unfortunately, popular modern browsers do not permit configuration of TLS/SSL encrypted proxy connections.
- IE 9/Firefox 17/Chrome 23では、chromeのみ(23.0.1271.97)サポートしている模様
- Secure Web Proxy - The Chromium Projects
- chrome --proxy-pac-url=D:\ssl.pacのようにして起動する
```
function FindProxyForURL(url, host) { return "HTTPS proxy.example.jp:8443"; }
```
  - インターネットオプション > 接続 > LANの設定 > 自動構成スクリプトに file://D:/ssl.pac のように指定することも出来るが、IEその他のクライアントにも影響が出るため好ましくない

--enable-ssl

Ubuntu 12.04のsquid3パッケージは、httpsサイトへのプロクシとしては動作するが、configure --enable-sslされていないため、リビルドが必要

(SOLVED) Squid3-3.1.19 on Ubuntu 12.04 - https ssl shebang - Ubuntu Forums

必要なパッケージ

mitty@test:~$ sudo aptitude build-dep squid3

Unable to satisfy the build-depends: Build-Depends: libcap2-dev.

mitty@test:~$ sudo aptitude install -R devscripts
- debuildを含むパッケージ -> Linux/Packages?

mitty@test:~$ sudo aptitude install -R libcap2-dev

Note: selecting "libcap-dev" instead of the
      virtual package "libcap2-dev"
The following NEW packages will be installed:
  libcap-dev

不足していると、debuild -us -ucが以下のエラーで失敗する
```
dpkg-checkbuilddeps: Unmet build dependencies: libcap2-dev
```

mitty@test:~$ sudo aptitude install -R libssl-dev

不足していると、debuild -us -ucが以下のエラーで失敗する

../../src/ssl/gadgets.h:39:1: error: variable or field 'X509_free_cpp' declared void
../../src/ssl/gadgets.h:39:1: error: 'X509' was not declared in this scope
../../src/ssl/gadgets.h:39:1: error: 'a' was not declared in this scope
../../src/ssl/gadgets.h:40:21: error: 'X509' was not declared in this scope

i'm having a problem while compiling squid 3.2.0.12 (since 3.2.0.6) on ubuntu server

mitty@test:~$ apt-get source squid3

Get:1 http://ftp.tsukuba.wide.ad.jp/Linux/ubuntu/ precise-updates/main squid3 3.1.19-1ubuntu3.12.04.1 (dsc) [1,912 B]
Get:2 http://ftp.tsukuba.wide.ad.jp/Linux/ubuntu/ precise-updates/main squid3 3.1.19-1ubuntu3.12.04.1 (tar) [3,403 kB]
Get:3 http://ftp.tsukuba.wide.ad.jp/Linux/ubuntu/ precise-updates/main squid3 3.1.19-1ubuntu3.12.04.1 (diff) [22.1 kB]

squid3-3.1.19/
squid3_3.1.19-1ubuntu3.12.04.1.debian.tar.gz
squid3_3.1.19-1ubuntu3.12.04.1.dsc
squid3_3.1.19.orig.tar.gz

mitty@test:~$ vim squid3-3.1.19/debian/rules

rules

-                      old
+                      new
         --enable-esi \
         --enable-zph-qos \
         --enable-wccpv2 \
+        --enable-ssl \
         --disable-translation \
         --with-logdir=/var/log/squid3 \
         --with-pidfile=/var/run/squid3.pid \

mitty@test:~/squid3-3.1.19$ debuild -us -uc

squid_3.1.19-1ubuntu3.12.04.1_amd64.deb
squid3_3.1.19-1ubuntu3.12.04.1_amd64.deb
squid3-common_3.1.19-1ubuntu3.12.04.1_all.deb
squid3-dbg_3.1.19-1ubuntu3.12.04.1_amd64.deb
squid-cgi_3.1.19-1ubuntu3.12.04.1_amd64.deb
squidclient_3.1.19-1ubuntu3.12.04.1_amd64.deb
squid-common_3.1.19-1ubuntu3.12.04.1_all.deb

install debs

依存パッケージ
- mitty@squid:~$ sudo aptitude install -R libcap2 libldap-2.4-2 libltdl7 libsasl2-2 ssl-cert squid-langpack
mitty@squid:~$ sudo dpkg -i squid3_3.1.19-1ubuntu3.12.04.1_amd64.deb squid3-common_3.1.19-1ubuntu3.12.04.1_all.deb

mitty@squid:~$ squid3 -v

Squid Cache: Version 3.1.19
configure options:  '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--libexecdir=${prefix}/lib/squid3' '--srcdir=.' '--disable-maintainer-mode' '--disable-dependency-tracking' '--disable-silent-rules' '--datadir=/usr/share/squid3' '--sysconfdir=/etc/squid3' '--mandir=/usr/share/man' '--with-cppunit-basedir=/usr' '--enable-inline' '--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd' '--enable-removal-policies=lru,heap' '--enable-delay-pools' '--enable-cache-digests' '--enable-underscores' '--enable-icap-client' '--enable-follow-x-forwarded-for' '--enable-auth=basic,digest,ntlm,negotiate' '--enable-basic-auth-helpers=LDAP,MSNT,NCSA,PAM,SASL,SMB,YP,DB,POP3,getpwnam,squid_radius_auth,multi-domain-NTLM' '--enable-ntlm-auth-helpers=smb_lm,' '--enable-digest-auth-helpers=ldap,password' '--enable-negotiate-auth-helpers=squid_kerb_auth' '--enable-external-acl-helpers=ip_user,ldap_group,session,unix_group,wbinfo_group' '--enable-arp-acl' '--enable-esi' '--enable-zph-qos' '--enable-wccpv2' '--enable-ssl' '--disable-translation' '--with-logdir=/var/log/squid3' '--with-pidfile=/var/run/squid3.pid' '--with-filedescriptors=65536' '--with-large-files' '--with-default-user=proxy' '--enable-linux-netfilter' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security' 'LDFLAGS=-Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now' 'CPPFLAGS=-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security' --with-squid=/home/mitty/squid3-3.1.19

オリジナルのconfigure options

mitty@test:~$ squid3 -v

Squid Cache: Version 3.1.19
configure options:  '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--libexecdir=${prefix}/lib/squid3' '--srcdir=.' '--disable-maintainer-mode' '--disable-dependency-tracking' '--disable-silent-rules' '--datadir=/usr/share/squid3' '--sysconfdir=/etc/squid3' '--mandir=/usr/share/man' '--with-cppunit-basedir=/usr' '--enable-inline' '--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd' '--enable-removal-policies=lru,heap' '--enable-delay-pools' '--enable-cache-digests' '--enable-underscores' '--enable-icap-client' '--enable-follow-x-forwarded-for' '--enable-auth=basic,digest,ntlm,negotiate' '--enable-basic-auth-helpers=LDAP,MSNT,NCSA,PAM,SASL,SMB,YP,DB,POP3,getpwnam,squid_radius_auth,multi-domain-NTLM' '--enable-ntlm-auth-helpers=smb_lm,' '--enable-digest-auth-helpers=ldap,password' '--enable-negotiate-auth-helpers=squid_kerb_auth' '--enable-external-acl-helpers=ip_user,ldap_group,session,unix_group,wbinfo_group' '--enable-arp-acl' '--enable-esi' '--enable-zph-qos' '--enable-wccpv2' '--disable-translation' '--with-logdir=/var/log/squid3' '--with-pidfile=/var/run/squid3.pid' '--with-filedescriptors=65536' '--with-large-files' '--with-default-user=proxy' '--enable-linux-netfilter' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security' 'LDFLAGS=-Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now' 'CPPFLAGS=-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security' --with-squid=/build/buildd/squid3-3.1.19

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