Basic Authentication2017/04/23

	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 Auth.

root@prox:~#

vi /etc/squid/squid.conf

acl CONNECT method CONNECT

# line 994: 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

# add a user : create a new file with "-c" (add the "-c" option only for the initial registration)

root@prox:~#

htpasswd -c /etc/squid/.htpasswd ubuntu

New password:

# set password

Re-type new password:

# confirm

Adding password for user ubuntu

root@prox:~#

systemctl restart squid

Proxy Client : Ubuntu

[3]	Configure Ubuntu Proxy Client for Basic Auth.

root@client:~#

vi /etc/profile

# add follows to the end

# username:password@proxyserver:port

MY_PROXY_URL="http://ubuntu: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

# it's OK all, but it's possible to set proxy settings for each application like follows

# for apt

root@client:~#

vi /etc/apt/apt.conf

# create new

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

# for wget

root@client:~#

vi /etc/wgetrc

# add to the end

http_proxy = http://prox.srv.world:3128/
https_proxy = http://prox.srv.world:3128/
ftp_proxy = http://prox.srv.world:3128/
proxy_user = ubuntu
proxy_passwd = password

Proxy Client : Windows

[4]	or Windows Clients, none of specific settings, but when access to a web, proxy server requires authentication like follows, then input username and password.

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