Networking

Setting up your Asus Archer C50 as a travel VPN router with OpenWrt involves several steps. Here’s a general guide to get you started: 1. Install OpenWrt on Your Router Check Compatibility: Ensure your Archer C5 model is supported by OpenWrt. You can verify this on the OpenWrt Table of Hardware. Download Firmware: Visit the OpenWrt website and download the appropriate firmware for your router model. Flash the Firmware: Access your router’s web interface, upload the OpenWrt firmware, and follow the instructions to flash it. Be cautious, as flashing firmware incorrectly can brick your router. 2. Configure OpenWrt Access OpenWrt Interface: After installation, log in to the OpenWrt web interface (usually at 192.168.1.1). Set Up Basic Settings: Change the default password, configure the LAN and WAN interfaces, and enable Wi-Fi. 3. Install VPN Software Choose a VPN Protocol: OpenWrt supports OpenVPN and WireGuard. Decide which one suits your needs. Install Packages: Use the OpenWrt package manager to install the necessary VPN packages (e.g., openvpn-openssl or luci-app-wireguard). Upload VPN Configuration: Obtain the configuration files from your VPN provider and upload them to the router. 4. Configure Travelmate (Optional) Install Travelmate: Travelmate is an OpenWrt package that simplifies managing Wi-Fi connections in travel scenarios. You can find more details here. Set Up Captive Portal Handling: Travelmate can help you connect to hotel Wi-Fi networks and maintain a secure connection. 5. Test Your Setup Connect Devices: Connect your devices to the router’s Wi-Fi network. Verify VPN Connection: Check your IP address to ensure traffic is routed through the VPN. This is a high-level overview. For detailed instructions, you can refer to resources like the OpenWrt Forum or video tutorials such as this one. ...

I started studying for AI-102 AI Engineer Associate certification. I am adding the subjects that I am falling short on this blog to improve my knowledge now. First of the series is networking… :) Securing and setting up the network for Azure AI services involves several key steps to ensure that your resources are protected and accessible only to authorized users. Here’s a comprehensive guide: Step 1: Configure Virtual Networks Create a Virtual Network: In the Azure portal, create a virtual network (VNet) that will host your Azure AI services. Add Subnets: Define subnets within your VNet to segment your network and improve security. Step 2: Set Up Private Endpoints Create Private Endpoints: Use private endpoints to connect your Azure AI services to your VNet securely. This ensures that traffic between your VNet and Azure AI services remains within the Azure backbone network. Configure DNS: Update your DNS settings to resolve the private endpoint IP addresses. Step 3: Configure Network Security Groups (NSGs) Create NSGs: Apply NSGs to your subnets to control inbound and outbound traffic. Define rules to allow traffic only from trusted sources. Apply NSGs: Attach the NSGs to your subnets and network interfaces. Step 4: Enable Firewall Rules Deny All by Default: Configure your Azure AI services to deny all incoming traffic by default. Allow Specific Networks: Create rules to allow traffic from specific VNets, subnets, or IP address ranges. Step 5: Use Service Tags and Application Security Groups Service Tags: Use Azure service tags to simplify the management of NSG rules. Service tags represent a group of IP address prefixes for specific Azure services. Application Security Groups: Group VMs and define security policies based on application tiers. Step 6: Monitor and Audit Enable Monitoring: Use Azure Monitor to track the performance and health of your Azure AI services. Audit Logs: Enable and review audit logs to track access and changes to your resources. Example Configuration Here’s an example of how you might configure your network-security-group.yml for NSGs: ...