Browsing Category »Networking«

Ubiquiti M2 devices for Hotspot, Clients can’t connect

April 21, 2013
Ubiquiti M2 devices for Hotspot, Clients can’t connect

Although Ubiquiti is not a band new Wireless device, but we just start to use this wireless device in this month. Previously we stick with Mikrotik Wireless and Router for several years. Also some Linksys flashed with DD-WRT and TP-Link wireless for Indoor purpose. Recently we decided to try Ubiquiti because many friends suggest us to apply this devices in […]

Mikrotik Hotspot, Limit YouTube based on user profile

January 22, 2013
Mikrotik Hotspot, Limit YouTube based on user profile

I used to use this limitation on public hotspot. Where everyone free to connect while we’re on limited bandwidth. Video stream usually use high bandwidth, at least 384kbps for SD quality (not HD) and you can imagine if 15 peoples stream YouTube video at the same time while we only have 5MB bandwidth. On busy hours, we […]

Folder synchronize over WiFi with SyncToy

January 9, 2013
Folder synchronize over WiFi with SyncToy

While there are hundreds of free and commercial sync tools, I’ve found SyncToy quite easy and useful. It’is a free tool by Microsoft which support Windows 7, Vista and XP. To use this tool, we will need a network connection in order to sync between PCs. It can be Wired LAN or WiFi connection with 3rd party devices […]

Mikrotik Hotspot, Block website based on User Profile

December 3, 2012
Mikrotik Hotspot, Block website based on User Profile

Previously on Mikrotik Hotspot we’ve been limiting user’s connections based on user profile, today we gonna block specific website based on user profile. Please kindly re-read my previous for for instruction on trapping user address into address list. Since we also use the address list for current post. Our local internet regulation forced us to block specific websites for specific users. Mostly social […]

Mikrotik dhcp client, renew scheduler if server down

November 28, 2012
Mikrotik dhcp client, renew scheduler if server down

We have a dhcp server installed on a main linux router, a centos 6.3 with squid 3.1, ntp server and also freeradius along with mysql server installed on it. As a router for client and a hotspot server we have a Mikrotik 5.12 os installed on RB1200 power pc. Our daily problem is the electrical power […]

Ping tricks for HSDPA on Linux

February 14, 2012
Ping tricks for HSDPA on Linux

Previously i wrote about ping trick for windows to trick gsm mobile network to stay on hsdpa by keep sending a higher packet size to internet with ping so the server will think that we are not idle. Well, you might be thinking  “why don’t just send a ping?”, i tried to send without packet before but […]

Pdnsd to baypass dns transparent

January 19, 2012
Pdnsd to baypass dns transparent

We’ve been with google dns since a year ago.  Suddenly our network administrator blocked our access to all outside dns server today except access to their server.  It’s a bit irritating since they use opendns to control website access and blocked many websites. That’s not the only problem, because websites that provide proxy lists was included on their […]

Reduce wireless collision for dd-wrt and openwrt

January 8, 2012
Reduce wireless collision for dd-wrt and openwrt

I’ve been experiencing high latency caused by wireless collision, low throughput and some others wireless problem on my linksys wireless. The wireless was set as an access point for multi client (hotspot) with wds support and all of them are flashed with DD-Wrt and OpenWRT. I made this post just to remind me about tiny tweaks to linksys wireless so […]

Limit number connection based on user profile, Mikrotik Hotspot

January 5, 2012
Limit number connection based on user profile, Mikrotik Hotspot

Managing mikrotik hotspot firewall rule can be tricky, the mikrotik hotspot always ignored mangle rules. If we create a mangle rule for mikrotik hotspot and then open the statistic menu, there will be no activity. Since mangle firewall not help us on managing hotspot traffic for every user, there is one easy way to catch users […]

Ping might be able to keep gsm signal to stay HSDPA

December 28, 2011
Ping might be able to keep gsm signal to stay HSDPA

I’ve been using mobile internet since 2009 and already tried 3 different GSM networks so far. But what we can say about cheap public services which are used by hundred and maybe thousand of customers, stability become their main problem. Well, if you wanna have a stable network and you have plenty of money to […]