vim /etc/squid/squid.conf

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[[email protected] ~]# vi /etc/squid/squid.conf

#
# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines

acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT

#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager

# Deny requests to certain unsafe ports
http_access deny !Safe_ports

# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports

# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
"/etc/squid/squid.conf" 77L, 2510C

以上是squid.conf的初始值。

 

解釋如下：#

# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1 　　 //定義源地址為本地迴環地址的ACL
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1 　　 //定義目的地址的ACL

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network 　　 //定義本地網段的ACL
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines

acl SSL_ports port 443 　　 //定義安全連接埠為443的ACL
acl Safe_ports port 80 # http 　　 //定義安全連接埠為80的ACL
acl Safe_ports port 21 # ftp　　 //定義安全連接埠為21的ACL
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT　　 //定義串連方式為CONNECT的ACL
#
#auth
auth_param basic program /usr/lib64/squid/squid_db_auth --user cache --password bmv7RfSA --plaintext --persist
auth_param basic children 5
auth_param basic realm Web-Proxy
auth_param basic credentialsttl 1 minute
auth_param basic casesensitive off
acl db-auth proxy_auth REQUIRED
http_access allow db-auth
http_access allow localhost
#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost　　 //僅允許本機主機進行緩衝管理
http_access deny manager 　　 //拒絕其他主機的所有緩衝管理

# Deny requests to certain unsafe ports
http_access deny !Safe_ports 　　 //拒絕所有非Safe_ports的串連，Safe_ports為設定檔中所定義的若干連接埠

# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports

# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost

#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#

# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow localnet　　//允許本地網段使用
http_access allow localhost

# And finally deny all other access to this proxy
#http_access deny all　　//拒絕所有

http_access allow all 　　 //允許所有

# Squid normally listens to port 3128
http_port 8089　　 //設定監聽的IP與連接埠號碼
cache_mem 128 MB 　　 //記憶體緩衝總容量，額外提供給squid使用的記憶體，squid的記憶體總佔用為 X * 10+15+“cache_mem”，其中X為squid的cache佔用的容量（以GB為單位），
//比如下面的cache大小是100M，即0.1GB，則記憶體總佔用為0.1*10+15+64=80M，推薦大小為實體記憶體的1/3-1/2或更多。
maximum_object_size 4 MB 　　//設定squid磁碟緩衝最大檔案，超過4M的檔案不儲存到硬碟
maximum_object_size_in_memory 4 MB　　 //設定可以緩衝的單個檔案最大容量為4MB
https_port 443 cert=/usr/local/squid/etc/bpoj.crt key=/usr/local/squid/etc/bpoj.key
cache_log /var/log/squid/cache.log　　 //設定緩衝日誌

access_log /var/log/squid/access.log//log　　 //檔案存放路徑和日誌格式

#access_log syslog squid
cache_dir ufs /var/log/squid/cache 200 16 512 read-only　　//定義squid的cache存放路徑、cache目錄容量（單位M）、一級緩衝目錄數量、二級緩衝目錄數量

# Uncomment and adjust the following to add a disk cache directory.
#cache_dir ufs /usr/local/squid/var/cache/squid 100 16 256

# Leave coredumps in the first cache dir
coredump_dir /var/log/squid/core_dump

//percent為百分比，如果squid最後修改係數演算法低於百分比則資料到期
# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
# We recommend you to use at least the following line.
hierarchy_stoplist cgi-bin ?　　//禁止緩衝CGI指令碼

# Uncomment and adjust the following to add a disk cache directory.
#cache_dir ufs /var/spool/squid 100 16 256

# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid

# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320

#custom error
error_directory /etc/squid/pages/

vim /etc/squid/squid.conf