Articles about firewall | UserComp.com | Page [ 2 ]

How to Restrict Access to a Specific IP on Port 1111 with UFW

Restricts access to port 1111 on UFW by allowing only a specific IP address while denying all other sources.

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Reroute and tunnel udp connection to another server

Redirect UDP traffic to another server using iptables DNAT and static routing.

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PFsense: Fake Subnet and IPsec Tunnel Mapping

Resolve IPsec routing failures for remote fake subnets by configuring precise Phase 2 definitions and excluding traffic from NAT in pfSense.

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Which FW rules to make smb safer (and still usable) in Win and Mac?

Restrict SMB firewall rules to trusted subnets and disable NetBIOS to prevent unauthorized access while maintaining file sharing.

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Windows 11 23H2 Installation: Firewall Drops DHCP, Reaktek 2.5GbE 8125 Adapter Connection Issues

Resolve Realtek 8125 network drops during Windows 11 23H2 installation by manually injecting the correct driver via pnputil in the setup environment.

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Troubleshooting Wireguard and Firewalld Connectivity Issues on Debian Linux and Fedora

Resolve Wireguard internet access failures on Debian and Fedora by configuring firewalld zone assignment and enabling masquerading for proper NAT routing.

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Understanding Default Network Settings in Windows Defender Firewall

Resolve Windows Defender Firewall blocking trusted local resources by manually switching network profiles from Public to Private.

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Default Network Access to the Docker Host

Resolve conflicts between Docker and UFW firewall rules on Ubuntu to prevent security gaps or broken container connectivity.

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Windows Defender Firewall not blocking Internet connection

Resolve Windows Defender Firewall failing to block internet traffic by verifying services, repairing system integrity, and removing third-party interference.

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Troubleshooting Firewall or Proxy Issues: How to Resolve Internet Accessibility Problems

Resolve internet connectivity failures caused by misconfigured local firewalls or proxy servers by verifying network paths and adjusting security rules.

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Troubleshooting SSH Port Change Issues in Almalinux9

Resolve lost SSH connectivity on AlmaLinux 9 after changing the port by synchronizing sshd, SELinux, and firewall configurations.

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How to Fix 'Destination Host Unreachable' Error on Your Laptop

Resolve the Destination Host Unreachable error by flushing DNS, checking firewalls, and resetting network adapters on Windows or macOS.

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Unblocking Port 80443 for IIS Web Server

Resolve external connectivity issues for an IIS web server by configuring Windows Firewall inbound rules and router port forwarding for TCP port 80443.

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How to Allow Group IPs on a Single NIC in Windows Server 2022 for Exclusive Access

Configure Windows Firewall rules to restrict access to a specific NIC by targeting its local IP address via PowerShell.

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Iptables Command: A Guide to Firewall Configuration on Ubuntu Router

Resolve Ubuntu router firewall misconfigurations by configuring iptables chains to secure traffic while maintaining SSH and DNS connectivity.

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Windows 10 - Firewall - Outbound rule to allow access for one service hosted by svchost.exe

Resolve the inability to create granular outbound firewall rules for specific services hosted by svchost.exe by binding rules to unique service names instead of the shared executable path.

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How to Prevent Access to Websites Built in Certain Regions on Windows 10

Resolve Windows 10 firewall limitations for regional website blocking by using third-party DNS services or proxy servers with geo-filtering capabilities.

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How to Fix Firewall Reducing Maximum Download Speed on Celeron J1900 ARH Linux Router

Fix firewall throttling download speeds on Celeron J1900 ARH Linux by tuning connection tracking limits and enabling TCP segmentation offload.

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How to allow Microsoft OneNote in Windows Firewall?

Resolve OneNote sync and connection errors by creating a Windows Firewall inbound rule for the executable.

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Refresh Windows Firewall Modification with PowerShell's NetSecurity Module

Use PowerShell's NetSecurity module to dynamically create and apply Windows Firewall rules instantly without restarting the system.

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VPN Client Can't Connect to Windows VPN Server: Firewall Issues

Resolve Windows VPN client connection failures by configuring inbound firewall rules for specific protocols like PPTP, L2TP/IPsec, SSTP, or IKEv2.

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Bypassing GEOIP Protection with VPN: A Web Application Firewall Issue

Resolve inaccurate geolocation data in WAF logs caused by users masking their true location with VPNs.

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Troubleshooting Return Traffic Not Routed Properly Through Passthrough Server

Resolve asymmetric routing and reverse path filtering drops to ensure return traffic passes through a passthrough server.

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How to Add Windows Firewall Rule Like Linux Interface eth0

Resolve ambiguity in Windows firewall rules by targeting specific network interfaces using the InterfaceAlias parameter in PowerShell.

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