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Networking
How to Scan for mDNS/DNS-SD services published on the local network using mdns-scan command ? How to … Read more
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Networking
Technical resources about Networking.
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Monitor Android Network Connectivity Correctly
A connected Wi-Fi or cellular network is not proof that your server is reachable. Observe Android’s default network and capabilities, expose conservative UI state, and let each request handle DNS, TLS, timeout, authentication, and server failures independently.
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Maximize Network Performance: Measure Throughput Effectively with Netperf
Network throughput is a critical metric that determines the efficiency of your network infrastructure. It helps you … Read more
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Identify all devices in a network using nmap and ARP scan
What is Nmap? Nmap (Network Mapper) is a free and open-source network scanning tool. It is widely … Read more
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How to Block External Network Downloads in Yocto Using BB_NO_NETWORK
The Yocto Project is a powerful and flexible toolset for creating custom Linux distributions for embedded systems. … Read more
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Build a Small Ubuntu LAN That You Can Actually Debug
Connect Ubuntu systems through a switch, decide whether DHCP or an isolated static subnet fits, configure Netplan with rollback, and test each network layer.
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How to check if Wi-Fi is connected on Android Programmatically ?
To check if your Android device is already connected to a Wi-Fi network, you can use the … Read more
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Set a Static IP on Ubuntu Without Losing Access
A stable address is usually safest as a DHCP reservation. When the host itself must own a static address, identify the active renderer, choose an address outside the dynamic pool, validate Netplan syntax, use rollback-capable apply, and verify link, route, DNS, and remote access separately.
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Connect adb shell over Wireless / Wifi / Ethernet / TCP network
NOTE: for below article, replace IP address whereever required with your IP address If you want to … Read more
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How to check if password for WiFi network is correct in Android ?
The following sample code in android can be used to check if the Password entered to connect … Read more
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Block Websites on Home Wi-Fi Without Fooling Yourself
A router can block domains for a whole household, but encrypted traffic and alternate DNS paths make the result less absolute than many setup screens imply. Here is how to choose, test, and safely reverse the right control.
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Fix Git RPC Failed: curl 56 GnuTLS Error
Git curl 56 and GnuTLS recv error (-54) usually mean the HTTPS response ended before Git received a complete packfile. Start with a clean retry and network diagnosis, then reduce the transfer or change transport—without blindly increasing http.postBuffer.
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Inspecting Linux Network Interfaces, MACs, and IP Addresses in Go
Learn how to enumerate network interfaces, inspect MAC addresses, extract IPv4/IPv6 CIDR subnets, and check interface status flags using Go.
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Connect Wi-Fi from Linux Terminal Using Nmcli
nmcli is a command-line tool for controlling NetworkManager and reporting network status. It can be utilized as … Read more
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Auto-Share WordPress Posts Without Losing Control
Connect WordPress to supported social accounts, preserve editorial control, test previews safely, and build a maintenance routine for failed or expired connections.
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Fix apt Stuck at 0% Connecting on Ubuntu
When apt pauses at “0% Connecting,” the last displayed address is evidence, not a diagnosis. Determine whether DNS, IPv6 routing, IPv4 routing, a proxy, TLS, a captive portal, the selected mirror, or an unsupported Ubuntu release is failing before changing system-wide address selection.
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Querying Network Interface Details by Name in Go (net.InterfaceByName)
Write a Go program using net.InterfaceByName to lookup IP addresses, MAC hardware addresses, MTU, and status flags for a specific network interface.
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Scanning and Listing Available Wi-Fi Networks in Linux: nmcli, iw, and iwlist
Scan and list available Wi-Fi networks in Linux using nmcli, iw, and iwlist. Learn BSSID, SSID, RSSI signal strength, and channel parsing.
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Different between WifiNetworkSpecifier and WifiNetworkSuggestion
WifiNetworkSpecifier and WifiNetworkSuggestion are both classes introduced in Android to facilitate the management and connection to Wi-Fi … Read more