Squid : Basic Authentication2021/09/15

	Set Basic Authentication and limit Squid for users to require authentication.
[1]	Install a package which includes htpasswd.

root@prox:~#

apt -y install apache2-utils

[2]	Configure Squid to set Basic Authentication.

root@prox:~#

vi /etc/squid/squid.conf

acl CONNECT method CONNECT

# line 1209 : add follows for Basic auth

auth_param basic program /usr/lib/squid/basic_ncsa_auth /etc/squid/.htpasswd
auth_param basic children 5
auth_param basic realm Squid Basic Authentication
auth_param basic credentialsttl 5 hours
acl password proxy_auth REQUIRED
http_access allow password

root@prox:~#

systemctl restart squid

# add a user : create a new file with [-c] option

root@prox:~#

htpasswd -c /etc/squid/.htpasswd debian

New password:

# set password

Re-type new password:
Adding password for user debian

Proxy Client Setting : Debian

[3]	Configure Debian Proxy Client for Basic Authentication.

root@client:~#

vi /etc/profile.d/proxy.sh

# create new
# username:password@proxyserver:port

MY_PROXY_URL="debian:password@prox.srv.world:3128"

HTTP_PROXY=$MY_PROXY_URL
HTTPS_PROXY=$MY_PROXY_URL
FTP_PROXY=$MY_PROXY_URL
http_proxy=$MY_PROXY_URL
https_proxy=$MY_PROXY_URL
ftp_proxy=$MY_PROXY_URL

export HTTP_PROXY HTTPS_PROXY FTP_PROXY http_proxy https_proxy ftp_proxy

root@client:~#

source /etc/profile.d/proxy.sh

# or it's possible to set proxy settings for each application, not System wide
# for apt

root@client:~#

vi /etc/apt/apt.conf

# create new

Acquire::http::proxy "http://debian:password@prox.srv.world:3128/";
Acquire::https::proxy "https://debian:password@prox.srv.world:3128/";
Acquire::ftp::proxy "ftp://debian:password@prox.srv.world:3128/";

# for curl

[root@client ~]#

vi ~/.curlrc

# create new

proxy=prox.srv.world:3128
proxy-user=debian:password

# for wget

root@client:~#

vi /etc/wgetrc

# add to the end

http_proxy = prox.srv.world:3128
https_proxy = prox.srv.world:3128
ftp_proxy = prox.srv.world:3128
proxy_user = debian
proxy_passwd = password

Proxy Client Setting : Windows

[4]	For Windows Clients, none of specific settings, when starting web browser, proxy server requires authentication like follows, then input username and password.

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