http://www.cyberciti.biz/tips This is a Linux sys admin journal by Vivek about sys admin work, Linux tips & tricks, hacks, news and more. Wed, 24 Apr 2013 18:50:55 +0000 en-US hourly 1 http://wordpress.org/?v=3.5.1 http://www.cyberciti.biz/tips/linux-unix-bsd-mac-filtering.html http://www.cyberciti.biz/tips/linux-unix-bsd-mac-filtering.html#comments Tue, 17 Feb 2009 18:37:21 +0000 nixCraft http://www.cyberciti.biz/tips/?p=4452 MAC Filtering (layer 2 address filtering) refers to a security access control methodology whereby the 48-bit address assigned to each network card is used to determine access to the network. Iptables, pf, and IPFW can block a certain MAC address on a network, just like an IP. One can deny or allow from MAC address like 00:1e:2a:47:42:8d using open source firewalls. MAC address filtering is often used to secure LAN or wireless network / devices. Is this technique effective? ]]> http://www.cyberciti.biz/tips/linux-unix-bsd-mac-filtering.html/feed 14 http://www.cyberciti.biz/tips/largest-us-id-fraud-case.html http://www.cyberciti.biz/tips/largest-us-id-fraud-case.html#comments Wed, 06 Aug 2008 09:40:07 +0000 nixCraft http://www.cyberciti.biz/tips/?p=2588 The US authorities have charged 11 people in connection with the theft of credit-card details in the country's largest-ever identity theft case. The cracking was done using nothing but wireless routers and by driving around neighbourhoods and cracking into wireless equipment. I've already written about few basic tips about securing wifi router.]]> http://www.cyberciti.biz/tips/largest-us-id-fraud-case.html/feed 3 http://www.cyberciti.biz/tips/securing-home-wireless-wifi-networking.html http://www.cyberciti.biz/tips/securing-home-wireless-wifi-networking.html#comments Sun, 04 May 2008 16:52:21 +0000 nixCraft http://www.cyberciti.biz/tips/?p=2262 http://www.cyberciti.biz/tips/securing-home-wireless-wifi-networking.html/feed 2 http://www.cyberciti.biz/tips/howto-debian-ubuntu-linux-wlan-wpa2-configuration.html http://www.cyberciti.biz/tips/howto-debian-ubuntu-linux-wlan-wpa2-configuration.html#comments Mon, 18 Feb 2008 05:09:22 +0000 nixCraft http://www.cyberciti.biz/tips/howto-debian-ubuntu-linux-wlan-wpa2-configuration.html http://www.cyberciti.biz/tips/howto-debian-ubuntu-linux-wlan-wpa2-configuration.html/feed 2 http://www.cyberciti.biz/tips/ping-tunnel-ping-proxy.html http://www.cyberciti.biz/tips/ping-tunnel-ping-proxy.html#comments Mon, 17 Dec 2007 13:30:07 +0000 nixCraft http://www.cyberciti.biz/tips/ping-tunnel-ping-proxy.html http://www.cyberciti.biz/tips/ping-tunnel-ping-proxy.html/feed 1 http://www.cyberciti.biz/tips/howto-crack-wirless-wep-104.html http://www.cyberciti.biz/tips/howto-crack-wirless-wep-104.html#comments Wed, 04 Apr 2007 17:52:35 +0000 nixCraft http://www.cyberciti.biz/tips/howto-crack-wirless-wep-104.html http://www.cyberciti.biz/tips/howto-crack-wirless-wep-104.html/feed 2 http://www.cyberciti.biz/tips/openbsd-atheros-usb-ar5005ugar5005ux-and-connexantintersil-prism-gt-driver-download.html http://www.cyberciti.biz/tips/openbsd-atheros-usb-ar5005ugar5005ux-and-connexantintersil-prism-gt-driver-download.html#comments Sun, 17 Sep 2006 23:55:52 +0000 nixCraft http://www.cyberciti.biz/tips/openbsd-atheros-usb-ar5005ugar5005ux-and-connexantintersil-prism-gt-driver-download.html http://www.cyberciti.biz/tips/openbsd-atheros-usb-ar5005ugar5005ux-and-connexantintersil-prism-gt-driver-download.html/feed 0 http://www.cyberciti.biz/tips/comparison-of-open-source-wireless-drivers.html http://www.cyberciti.biz/tips/comparison-of-open-source-wireless-drivers.html#comments Thu, 14 Sep 2006 22:30:38 +0000 nixCraft http://www.cyberciti.biz/tips/comparison-of-open-source-wireless-drivers.html Linux => FreeBSD => OpenBSD => NetBSD => Solaris and OpenSolaris => Darwin, OpenDarwin and Mac OS X etc Comparison of open source wireless drivers]]> http://www.cyberciti.biz/tips/comparison-of-open-source-wireless-drivers.html/feed 0 http://www.cyberciti.biz/tips/linux-install-and-configure-dlink-dwl-g-520-wireless-lan-pci-card.html http://www.cyberciti.biz/tips/linux-install-and-configure-dlink-dwl-g-520-wireless-lan-pci-card.html#comments Wed, 26 Jul 2006 18:13:35 +0000 nixCraft http://www.cyberciti.biz/tips/linux-install-and-configure-dlink-dwl-g-520-wireless-lan-pci-card.html http://www.cyberciti.biz/tips/linux-install-and-configure-dlink-dwl-g-520-wireless-lan-pci-card.html/feed 121 http://www.cyberciti.biz/tips/linux-how-to-setup-as-dns-client.html http://www.cyberciti.biz/tips/linux-how-to-setup-as-dns-client.html#comments Wed, 01 Dec 2004 13:49:00 +0000 nixCraft http://www.cyberciti.biz/tips/linux-how-to-setup-as-dns-client.html Linux DNS Client / Nameserver configuration. Explains how to set or add ISP or your own dns servers to /etc/resolv.conf file to resolve hostnames.]]> http://www.cyberciti.biz/tips/linux-how-to-setup-as-dns-client.html/feed 44