Prohibit IP access to Web sites in a variety of ways to share (Linux,php,nginx,apache) _ Server Other

PHP prohibits access to an IP or IP segment

Don't say much nonsense, sir please see:

?  
Prohibit an IP
$banned _ip = Array (
"127.0.0.1",
//"119.6.20.66",
"192.168.1.4"
);
if (In_array getenv ("REMOTE_ADDR"), $banned _ip))
{
die ("Your IP is prohibited from accessing!") ");
}
Prohibit an IP segment
$ban _range_low=ip2long ("119.6.20.65");
$ban _range_up=ip2long ("119.6.20.67");
$ip =ip2long ($_server["REMOTE_ADDR"]);
if ($ip > $ban _range_low && $ip < $ban _range_up)
{
echo "Your IP is prohibited in the banned IP segment, access is forbidden!") ";
Exit ();
}

Apache prohibits using IP access

Method One: At the end of the httpd.conf file, add the following code

Namevirtualhost 221.*.*.*
<virtualhost 221.*.*.*>
ServerName 221.*.*.* <location/>
Order
Allow,deny
  Deny from all
</Location>
</VirtualHost>
<virtualhost 221.*.*.*>
DocumentRoot "C:/web"
ServerName www.jb51.net

Description: The blue part is to implement any access request that refuses to 221.*.*.* this IP directly, then if you use 221.*.*.* access, you will be prompted to deny access. The red section is to allow access through the Www.jb51.net domain name, and the home directory points to C:/web (assuming that your site's root directory is c:/web)

Linux Shielded IP Access

#屏蔽单个IP的命令是
iptables-i input-s 123.45.6.7-j DROP
#封整个段即从123.0.0.1 to 123.255.255.254 command
iptables-i INPUT- s 123.0.0.0/8-j drop
#封IP段即从123.45.0.1 to 123.45.255.254 command iptables-i input-s 124.45.0.0/16-j
Drop
# An IP segment is a command from 123.45.6.1 to 123.45.6.254 is
iptables-i input-s 123.45.6.0/24-j DROP
service iptables Save 

Save in/etc/sysconfig/iptables If no iptables files are created automatically

Nginx Prohibit IP access

The following configuration file is first established under Nginx's conf directory, named Blocksip.conf:

Deny 4.4.4.4//This is Nginx IP to be banned

Save it for a second.
In the Nginx configuration file nginx.conf, include blocksip.conf; Then restart the Nginx, and it will take effect. When the blocked IP opens the site, you will be prompted:

403 Forbidden

Blocksip.conf: There are a number of formats that can be configured to allow only IP access or IP segment access:

Deny IP;
Allow IP;
# Block all IPs
Deny all;
# Allow all IPs
Allow all;

The pattern of the network segment is this: 192.168.1.0/24 such a form.