Category: openwrt

Freifunk: Setup Router Software Bugfix

If you want to share Public Wifi at home for friends and you don’t want to share the Wifi Password, you can setup cheap a Public Openwrt Wifi Router as Access Point. Advantages: Public Setup needs no Wifi Password You are not responsible, cause the Internet is pulled thru a VPN of Freifunk Network It’s anonymous! It’s free of Charge! Supported by a big Community Can installed on very cheap old Routers like the TP-Link 841 (find the Singleband Router on Amaz or EbXX 12$ or Powerfull Dualband Router TP Link C7 at 50$) Can by used at EVERY Freifunk […]

Security: Harden DSL Routers and Networks against attacks

Last days there was a high count of news about the Bot Attacks against T-Com Telekom Router devices. To understand the behavior about this up comming security problems you should know following points : Every network supported device can be a goal for a attack ( Routers, Modems, PC, Fridges,IP-TV, IP Switches, IP-Cams…) You have to update the OS for each device monthly, if not supported by the manufacter, then dont buy! Try to get Opensource Hardware with Opensource Software for full access (ssh / console) to have full control Reduce the count of devices who are connected direct to […]

Openwrt : Openwrt 15.XX loses settings if the ROM Root Filesystem is full

On openwrt 15.XX i have seen if you installed additional Sofware via opkg and the /overlay path is nearby full you can’t save any settings via Luci Webinterface (blue Info box right upper corner) or the Router reboots hard automatic into failsave mode (lost all settings / factory reset) Workaround: You can install a external usb stick on most routers and move the “/overlay” folder to it You should always Download the “backup-settings.tgz” from Software Menu to get the Router easy  and fast online again on last working state. If the rootfs (root filesystem and overlay path) is nearby full, […]

Openwrt: Turn older Router into Wifi Accesspoint Repeater Extender Solar Powered

At the Summer Time you need perhaps a Wifi Extender for your Garden?? Solution: TP Link 841/N (low power/Battery 9V/Solar /Type-N-allows external planar Antennas!!), 3600+4300 (USB-NAS/CIFS/SFTP/Classroom Library with USB Strorage) Openwrt 15.XX Calmer as OS with Firewall, Webinterface and REALTIME Monitor for Traffic and Connections! Easy Setup, replace the OS by the TP-Link-Updater, reboot and Login to Openwrt You got professional Options! works as Firewall, Extender, Repeater, WIFI-to-WIFI Bridge, LAN-to-WIFI Bridge, NTP-Server, DNS/DHCP Server can isolate connected WIFI Clients can handle different WIFI SSIDs / Networks on same Hardware modded Hardware can be used with 5Volts of Power! (841 removed Resistor) […]