ip segment calculator

_ X_FORWARDED_FOR ') strcasecmp (getenv ('HTTP _ X_FORWARDED_FOR'), 'unknown ')){ $ Userip = getenv ('HTTP _ X_FORWARDED_FOR '); } Elseif (getenv ('remote _ ADDR ') strcasecmp (getenv ('remote _ ADDR'), 'unknown ')){ $ Userip = getenv ('remote _ ADDR '); } Elseif (isset ($ _ SERVER ['remote _ ADDR ']) $ _ SERVER ['remote _ ADDR '] strcasecmp ($ _ SERVER ['remote _ ADDR'], 'unknown ')){ $ Userip = $ _ SERVER ['remote _ ADDR ']; } $ Ban_range_low = ip2long ("217.0.0.0"); // on the

_ CLIENT_IP ') strcasecmp (getenv ('http _ CLIENT_IP'), 'Unknown ')){$ Userip = getenv ('http _ CLIENT_IP ');} Elseif (getenv ('http _ X_FORWARDED_FOR ') strcasecmp (getenv ('http _ X_FORWARDED_FOR'), 'Unknown ')){$ Userip = getenv ('http _ X_FORWARDED_FOR ');} Elseif (getenv ('remote _ ADDR ') strcasecmp (getenv ('remote _ ADDR'), 'Unknown ')){$ Userip = getenv ('remote _ ADDR ');} Elseif (isset ($ _ SERVER ['remote _ ADDR ']) $ _ SERVER ['remote _ ADDR '] strcasecmp ($ _ SERVER ['remote

'] strcasecmp ($ _ SERVER ['remote _ ADDR'], 'Unknown ')){$ Userip = $ _ SERVER ['remote _ ADDR '];}// Restrict ip addressesIf ($ userip = '27. 37.188.128 '){Header ("location: http:// SC .jb51.net"); // jump to the foot home site after being disabledExit;}// Restrict ip segments$ Ip_arr = explode ('.', $ userip );# The restricted ip

') strcasecmp (getenv ('HTTP _ X_FORWARDED_FOR'), 'unknown ')){$ Userip = getenv ('HTTP _ X_FORWARDED_FOR ');} Elseif (getenv ('remote _ ADDR ') strcasecmp (getenv ('remote _ ADDR'), 'unknown ')){$ Userip = getenv ('remote _ ADDR ');} Elseif (isset ($ _ SERVER ['remote _ ADDR ']) $ _ SERVER ['remote _ ADDR '] strcasecmp ($ _ SERVER ['remote _ ADDR'], 'unknown ')){$ Userip = $ _ SERVER ['remote _ ADDR '];}$ Ban_range_low = ip2long ("217.0.0.0"); // on the

/** * Determine if IP is within an IP segment * * @param args */public static boolean ipexistsinrange (string IP, String ipsection) {Ipsecti On = Ipsection.trim (); IP = Ip.trim (); int idx = Ipsection.indexof ('-'); String Beginip = ipsection.substring (0, IDX); String EndI

This article mainly introduces how php disables access from an ip address or ip address segment, and involves the operating skills of the SERVER variable $ _ SERVER, files, and strings. it has some reference value, for more information about how php disables access from an ip address or CIDR block, see the following ex

Add the following code to the page where you want to prohibit access or submit a form.Note: Below is just an instance code that restricts IP to PHP, and if you intend to apply it to a CMS, modify it yourself.PHP/Add IP Access Restrictionsif(getenv(' Http_client_ip ') strcasecmp(getenv(' Http_client_ip '), ' unknown ')) { $userip=getenv(' Http_client_ip '); } ElseIf(getenv(' Http_x_forwarded_for ') strcasecm

Now some hosts have multiple NICs how to configure each NIC with a different IP address for the same network segment:1. Use Ifconfig to see how many network cards are available: I'm hosts are Nic:eth0 and Eth8.An IP has been configured on the eth0 now I need to configure the IP address on the ETH82. First check that t

Prohibit the writing of individual IP: The code is as follows Copy Code Deny x.x.x.x; Prohibit the writing of IP segments: The code is as follows Copy Code Deny 10.0.0.0/24; It can also be implemented to allow only one IP or one IP

To mount NFS, the first step is to enable the virtual machine to bridge the Internet. You do not need to check the box below the bridge Internet. The IP address and Host IP address must be configured in the same network segment. Record the following steps: I. I initially referred: 1), # ifconfig eth0 up (Note: After the system is installed, the default Nic is eth

(First of all, this method is based on Ubuntu installed in VMware) There are two ways to connect Ubuntu to a network: bridging and NAT In embedded development, this is often the case: develop in bridging mode, and switch to NAT mode if Ubuntu needs (Apt-get intall) to install software or surf the Internet. Method One: Modify the/etc/network/interfaces configuration file (not recommended) Method Two: Through the graphical interface of Ubuntu to set The first step: click on System Settings-network

You can specify a single IP address or a subnet of IPv4 or IPv6 addresses. To specify a subnet , enter the IP address using a syntax similar to the following:192.168.1.0/24The number following the forward slash (/) represents the number of bits in the subnet mask. may be 32 bits. In this example, 24 indicates that the first three octal numbers are subnet addresses, and the last octal number is the host ID

') strcasecmp (getenv ('http _ CLIENT_IP'), 'Unknown ')){ $ Userip = getenv ('http _ CLIENT_IP '); } Elseif (getenv ('http _ X_FORWARDED_FOR ') strcasecmp (getenv ('http _ X_FORWARDED_FOR'), 'Unknown ')){ $ Userip = getenv ('http _ X_FORWARDED_FOR '); } Elseif (getenv ('remote _ ADDR ') strcasecmp (getenv ('remote _ ADDR'), 'Unknown ')){ $ Userip = getenv ('remote _ ADDR '); } Elseif (isset ($ _ SERVER ['remote _ ADDR ']) $ _ SERVER ['remote _ ADDR '] strcasecmp ($ _ SERVER ['remote _ ADDR

(' http_x_forwarded_for ') strcasecmp (getenv (' http_x_forwarded_for '), ' unknown ')) { $userip = getenv (' http_x_forwarded_for '); } elseif (getenv (' remote_addr ') strcasecmp (getenv (' remote_addr '), ' unknown ')) { $userip = getenv (' Remote_addr '); } elseif (Isset ($_server[' remote_addr ']) $_server[' remote_addr '] strcasecmp ($_server[' Remote_addr '], ' unknown ') { $userip = $_server[' remote_addr ']; } $ban _range_low=ip2long ("217.0.0.0"), $ban _r

This article mainly introduces how php disables access from an ip address or ip address segment, and involves the operating skills of the SERVER variable $ _ SERVER, files, and strings. it has some reference value, for more information about how php disables access from an ip address or CIDR block, see the following ex

This article mainly introduces the shell script to determine whether the IP address in an IP segment code sharing, this article directly to the implementation code, the need for friends can refer to the ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20-21 Cat ipcalc.sh #!/bin/bash ip=$1 If [-Z $

You can specify a single IP address or a subnet for a IPv4 or IPV6 address. To specify a subnet, enter the IP address using a syntax similar to the following: 192.168.1.0/24 The number following the forward slash (/) represents the number of digits in the subnet mask. may be 32 digits. In this example, 24 indicates that the first three octal numbers are subnet addresses, and the last octal number is the h

Because we have not studied Apache and Nginx in-depth, so I wrote a small program that can disable the address in PHP.Usage To disable a single IP:Ban.dat:begin:119.184.251.245127.0.0.1192.168.1.100To disable an IP segment:PHP disables an IP or IP address segment access

IP address segment of Google Google China IP address segment: 203.208.32.0-203.208.63.255 total [8192] IP address recordsAddress: Beijing Google (China) Company203.208.32.17 255.203.208.32.15 203.208.32.14 255.255.255.255.255.255.255.203.208.32.5 203.208.32.4 203.208.32.

Due to recent business needs, a function to get all the IP in the network segment is written, as well as a function to allocate the available subnet segments/** * Calculate all IP * @param string $segment network segment ' 139.217.0.1/24 ' * @return array