ip

问题 I have a program in go which accepts URLs from clients and gets them using the net/http package. Before doing further processing, I would like to check if the URL maps to private (non-routable / RFC1918 networks) address space. The straight-forward way would be to perform an explicit DNS request and check the address for the known private ranges. After that, perform the HTTP GET request for the URL. Is there a better way to accomplish this? Preferably integrating with http.Client so it can be

问题 I am having a single page application running in webpack dev server for hot reloading on my local. However, the backend application of it was not on my local, it was host in a remote server, say http://remote-server.com. When I use such address in the chrome address field: 0.0.0.0:3000/homepage , the http request (api calls to remote backend server) was 5 times (even more) slower than using localhost:3000/homepage I am really confused why would this happen? Actually, more precisely, the

问题 I have the file ip.txt which contain the following ata001dcfe16f85.mm.ph.ph.cox.net (24.252.231.220) 220.231.252.24.xxx.com (24.252.231.220) and I made this bash command to extract ips : grep -Eo '(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)' ip.txt | sort -u > good.txt I want to edit the code so it extracts the ips between the parentheses ONLY . not all the ips on the line

问题 In the documentation of recaptcha it says that the remoteip argument is optional, but I don't understand its purpose, because even if I send a different IP than REMOTE_ADDR, the response from Google is still a valid captcha. 回答1: It is already asked in Information Security and I will provide the accepted answer here, too. Because it is not clear that it is mainly a security issue: Because there could be a DNS/hosts reroute in place to allow the captcha to be parsed differently by a malicious

问题 In the documentation of recaptcha it says that the remoteip argument is optional, but I don't understand its purpose, because even if I send a different IP than REMOTE_ADDR, the response from Google is still a valid captcha. 回答1: It is already asked in Information Security and I will provide the accepted answer here, too. Because it is not clear that it is mainly a security issue: Because there could be a DNS/hosts reroute in place to allow the captcha to be parsed differently by a malicious

问题 Im trying configure the docker daemon so i can connect to it from inside the docker containers i start.. So i changed /etc/docker/daemon.json to { "hosts": ["unix:///var/run/docker.sock", "tcp://0.0.0.0:2375"] } So that i connect to it through the docker bridge.. However when i restart docker i get netstat -tunlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 3728/mysqld tcp 0 0 127.0

问题 How can determine class of IP address in python. I am working with ipaddress module of python. Following are class definitions Class Private Networks Subnet Mask Address Range A 10.0.0.0 255.0.0.0 10.0.0.0 - 10.255.255.255 B 172.16.0.0 - 172.31.0.0 255.240.0.0 172.16.0.0 - 172.31.255.255 C 192.168.0.0 255.255.0.0 192.168.0.0 - 192.168.255.255 Given a IP how can I check if it belongs to Class A, B or C 回答1: IPv4 Use ipaddress.IPv4Address and ipaddress.IPv4Network types. from ipaddress import

问题 How can I find that an IP address is a LAN IP address or WAN IP address? I am writing a C API in Windows.Thanks 回答1: Private IP addresses are usually set from the private IP address spaces : 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 If the interface's IP addresses falls into one of these spaces, you can assume it is a private IP . Otherwise, it is a public (WAN) IP . 回答2: Most likely, what you want to determine is whether the address is a global address, or a private address. The wikipedia

问题 How can I find that an IP address is a LAN IP address or WAN IP address? I am writing a C API in Windows.Thanks 回答1: Private IP addresses are usually set from the private IP address spaces : 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 If the interface's IP addresses falls into one of these spaces, you can assume it is a private IP . Otherwise, it is a public (WAN) IP . 回答2: Most likely, what you want to determine is whether the address is a global address, or a private address. The wikipedia

问题 How can I find that an IP address is a LAN IP address or WAN IP address? I am writing a C API in Windows.Thanks 回答1: Private IP addresses are usually set from the private IP address spaces : 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 If the interface's IP addresses falls into one of these spaces, you can assume it is a private IP . Otherwise, it is a public (WAN) IP . 回答2: Most likely, what you want to determine is whether the address is a global address, or a private address. The wikipedia