ip-address

问题 I have a login script for a small application that works by storing session cookies and checking them on each page to make sure the user is logged in. One of the two users who uses the system keeps getting logged out randomly. This appears to be down to the session cookie that shows then authenticated no longer being present. After a lot of investigation the only thing I can see that is different about this user is that their IP address is changing (today it was changing every hour (their on

问题 What is the better way of getting the IP address in PHP: getenv('REMOTE_ADDR'); or, $_SERVER['REMOTE_ADDR']; please tell me the difference, if any, between the two. 回答1: getenv() can be used to access any environment variables (PHP simply registers REMOTE_ADDR as an environment variable for the script), while with $_SERVER you obviously only access the contents of the $_SERVER superglobal. The common approach is to use $_SERVER for this, although it doesn't really make a difference

问题 What is the better way of getting the IP address in PHP: getenv('REMOTE_ADDR'); or, $_SERVER['REMOTE_ADDR']; please tell me the difference, if any, between the two. 回答1: getenv() can be used to access any environment variables (PHP simply registers REMOTE_ADDR as an environment variable for the script), while with $_SERVER you obviously only access the contents of the $_SERVER superglobal. The common approach is to use $_SERVER for this, although it doesn't really make a difference

问题 I know there's already a lot of questions on this topic but I might have a few extra questions. I want to store IP addresses in a database (single column if possible). I want to be able to store either IPv4 or IPv6 addresses. I want to be able to differentiate between IPv4 and IPv6 addresses upon retrieval. Approaches I have considered: Use VARCHAR(45) to store the IP addresses in textual format. The maximum length of the textual representation of an IPv4 address is 15 characters. The maximum

问题 In my Spring Boot project I am trying to give access to several admin users with specific IP address. Is it possible to map a single role to multiple IP addresses? Here is the code from my security configuration which didn't work. (I am giving hard coded role name and ip addresses for simplicity) @SuppressWarnings("ALL") @Configuration @EnableWebSecurity public class MyWebSecurityConfig extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws

问题 I want to increase my ip address and; Here is the code ipAddressControl1.Text = "192.168.1.255"; byte[] ip = ipAddressControl1.GetAddressBytes(); ip[3] = (byte)(++ip[3]); IPAddress ipAddress1 = new IPAddress(ip); MessageBox.Show(ipAddress1.ToString()); or I also tried this ipAddressControl3.Text = "192.168.1.255"; IPAddress ipAddress1 = new IPAddress(ıpAddressControl3.GetAddressBytes()); ipAddress1.Address += 0x1 << 24; MessageBox.Show(ipAddress1.ToString()); but both of them gives me 192.168

问题 I want to increase my ip address and; Here is the code ipAddressControl1.Text = "192.168.1.255"; byte[] ip = ipAddressControl1.GetAddressBytes(); ip[3] = (byte)(++ip[3]); IPAddress ipAddress1 = new IPAddress(ip); MessageBox.Show(ipAddress1.ToString()); or I also tried this ipAddressControl3.Text = "192.168.1.255"; IPAddress ipAddress1 = new IPAddress(ıpAddressControl3.GetAddressBytes()); ipAddress1.Address += 0x1 << 24; MessageBox.Show(ipAddress1.ToString()); but both of them gives me 192.168

问题 My services file (C:\WINDOWS\system32\drivers\etc\services) has a bunch of Port to Service mappings: echo 7/tcp echo 7/udp discard 9/tcp sink null discard 9/udp sink null systat 11/tcp users #Active users systat 11/udp users #Active users daytime 13/tcp daytime 13/udp qotd 17/tcp quote #Quote of the day qotd 17/udp quote #Quote of the day chargen 19/tcp ttytst source #Character generator I am trying to find a way to convert from a Port to the Service Name programmatically through Java APIs

问题 I have a scenario where I need to start Android Emulator with a specific IP Address? Can I start the emulator like that? I do not want to do IP forwarding or other stuff, because there is an Android program running in the Emulator which on boot will configure itself with Android Emulators IP address present during boot time. As by default the ip address of emulator is 10.0.2.15 which I need to change. Also, this Ip is set in init.goldfish.rc and init.goldfish.sh. If I change them, still the

问题 I have a computer on a small network, so my ip is 192.168.2.100. I am trying to get my real ip. I download the no-ip client but that just seems like a lot of trouble for such a simple thing. I created this php script that got http://www.ip-adress.com/ page and retrieved the ip it gave me. Is there a simpler way? Either using C, WSH or something. Or if there is an easier way in php please tell me. When I get the ip I'll uploaded it to my ftp site so that I can see the ip from work. 回答1: No,