KERNEL 4.12

Linux Kernel 4.12 has been released. It may take some time for various distributions to get it ready for installation. Support for AMD Vega Support for NVIDIA Pascal Two new I/O schedulers Intel Atomic Mode is now enabled by default Two new I/O schedulers have also found a place in Linux kernel. These schedulers are …

Continue reading

WORDPRESS 4.7.4 LINKS

For some reason WordPress 4.7.4 has made some changes to the way it handles advertising links. The problem arose with the abuse of target=”_blank” where it was termed reverse tab napping. We have not seen this reported so we suspect that is more a WordPress related problem. WordPress adds rel=”noreferrer noopener” to links using target=”_blank” which will …

Continue reading

KERNEL 4.4.0 UPDATE

If you are using Linux there is a large update to the kernel with 4.4.0 to deal with some problems in the heap. A security audit noticed that elevated applications could access sensitive areas in the heap potentially causing some security problems. The stack used my processors can be configured to be range bound which …

Continue reading

HIGHPOINT SSD7101A SSD CONTROLLER

The HighPoint SSD7101A is a PCI Express 3.0 x16 card with four M.2 slots on the card. Using the recent Samsung 2TB M.2 SSD cards, it’s possible to install four of them for a RAID0 array of 8TB. Such an array can achieve 16GB/s with fast enough SSD drives. The card routes each M.2 slot …

Continue reading

WORDPRESS HTTP 304 ETAG HEADER PLUGIN

By deploying some additional code to your WordPress site, it can cut down on the need to have Google etc have to download every page on your site. The idea of HTTP 304 is to tell a search engine a given page is unchanged. By using a hash value, a tag called ETAG can be …

Continue reading

NETGEAR RECALL

Netgear has reported that four of its product lines that use the Intel Atom C2000 line of processors may experience “higher-than-normal failure rates” and that it is contacting affected customers to assess whether replacement or repair is appropriate. ReadyNAS devices RN3130 and RN3138, and Wi-Fi managers WC7500 and WC7600v2 all have Atom C2000 processors. We …

Continue reading

SHA-1 COLLISION

It took several years but researchers have finally beat SHA-1 and found it is easily possible to have 2 different documents with the game hash value. SHA-1 was officially deprecated by NIST in 2011 SHA-1 is widely used with HTTPS certificates in addition to many other applications. SHA-1 is also widely used for file integrity. Consider …

Continue reading

SITEMAP NOW 50MB

We have noticed that sitemaps can now be 50MB up from the previous 10MB. The change was made to manage for longer URLs which are becoming more common with database driven sites. We use descriptive permalinks which make it easier for people to read when they wish to save a URL. The sitemap is still …

Continue reading

LOCATION BASED ADVERTISEMENTS

At its most basic, an agent on a website has an IP address. By using a database, then known ip address ranges can narrow down the search. We have seen many problems with mixed http and https configurations. OBTAIN THE CLIENT IP ADDRESS $protocol = "http://"; $useraddress =  $_SERVER[‘REMOTE_ADDR’];$protocol = "http://"; $useraddress =  $_SERVER[‘REMOTE_ADDR’]; if ($_SERVER[’HTTPS’] == ‘on’) …

Continue reading

UBUNTU FORUM

Screenshot (222)

Given the problems we have experienced with the Ubuntu forum is why this site exists. Over time more and more general self-help articles will be posted. The original post has been removed and inquiries have failed.  Security is a serious problem which needs more attention. We are aware that in 2016, a full 20% of …

Continue reading