networking

问题 I am using NWPathMonitor(https://developer.apple.com/documentation/network/nwpathmonitor) to detect any network changes in my background process. I have noticed recently that every time I open an app and close it the handler is invoked. I also notice that there is no change in the path from the previous value that is passed. I am comparing these fields: interfaceType, supportsIpV4, supportsIpV6 and isSatisfied. I have seen it many times consistently that when I open an app and close it by

问题 I am working in Linux kernel module which is using NF_INET_PRE_ROUTING hook. In that hook I need to know the status of all my net_devices, specially wireless devices. I am able get some information about devices from net_device->flags i.e IFF_UP is device up or down. But I need some more detail about the wireless net_device . Is net_device wireless / wired? Is wireless devices connected to wireless access point? If yes which wireless access point (name of access point)? Gateway address

问题 I am working in Linux kernel module which is using NF_INET_PRE_ROUTING hook. In that hook I need to know the status of all my net_devices, specially wireless devices. I am able get some information about devices from net_device->flags i.e IFF_UP is device up or down. But I need some more detail about the wireless net_device . Is net_device wireless / wired? Is wireless devices connected to wireless access point? If yes which wireless access point (name of access point)? Gateway address

问题 I am writing a (rather simple :) networking application, and am testing it using localhost:27488 ( 127.0.0.1:27488 ). I am using a System.Net.Sockets.TcpClient for the connection, which takes a System.Net.IPAddress to specify the host... the only thing is, I can't figure out how to initialize the class with the right IP address. I went over the MSDN docs and it says it takes either a Byte(4) or an Int64 ( long ) for the address. The probelm is, when I initialize the IPAddress like this: Dim

问题 I am writing a (rather simple :) networking application, and am testing it using localhost:27488 ( 127.0.0.1:27488 ). I am using a System.Net.Sockets.TcpClient for the connection, which takes a System.Net.IPAddress to specify the host... the only thing is, I can't figure out how to initialize the class with the right IP address. I went over the MSDN docs and it says it takes either a Byte(4) or an Int64 ( long ) for the address. The probelm is, when I initialize the IPAddress like this: Dim

问题 I am writing a (rather simple :) networking application, and am testing it using localhost:27488 ( 127.0.0.1:27488 ). I am using a System.Net.Sockets.TcpClient for the connection, which takes a System.Net.IPAddress to specify the host... the only thing is, I can't figure out how to initialize the class with the right IP address. I went over the MSDN docs and it says it takes either a Byte(4) or an Int64 ( long ) for the address. The probelm is, when I initialize the IPAddress like this: Dim

问题 I'm trying to implement a tcp 'echo server'. Simple stuff: Client sends a message to the server. Server receives the message Server converts message to uppercase Server sends modified message to client Client prints the response. It worked well, so I decided to parallelize the server; make it so that it could handle multiple clients at time. Since most Python interpreters have a GIL, multithreading won't cut it. I had to use multiproces... And boy, this is where things went downhill. I'm

问题 Am curious about how OpenStack handles IP configuration, i have a complete working openstack dashboard with a static IP of 192.168.1.73/24 and i want to change it to something else. Running as a VM using RHEL\Scientific Linux\Centos 7.5 as the Guest Host. Am running openstack-queens (repo) -- /etc/yum.repos.d What i've tried and failed... 1.Changing static IP in /etc/sysconfig/network-scripts/ifcfg-eth0 2.Made sure in /etc/resolv.conf reflects my new configuration. 2.Replacing IP

问题 Am curious about how OpenStack handles IP configuration, i have a complete working openstack dashboard with a static IP of 192.168.1.73/24 and i want to change it to something else. Running as a VM using RHEL\Scientific Linux\Centos 7.5 as the Guest Host. Am running openstack-queens (repo) -- /etc/yum.repos.d What i've tried and failed... 1.Changing static IP in /etc/sysconfig/network-scripts/ifcfg-eth0 2.Made sure in /etc/resolv.conf reflects my new configuration. 2.Replacing IP

问题 Am curious about how OpenStack handles IP configuration, i have a complete working openstack dashboard with a static IP of 192.168.1.73/24 and i want to change it to something else. Running as a VM using RHEL\Scientific Linux\Centos 7.5 as the Guest Host. Am running openstack-queens (repo) -- /etc/yum.repos.d What i've tried and failed... 1.Changing static IP in /etc/sysconfig/network-scripts/ifcfg-eth0 2.Made sure in /etc/resolv.conf reflects my new configuration. 2.Replacing IP