https://devzone.nordicsemi.com/f/nordic-q-a/10382/peripheral-not-connecting-to-linux-centralHi. I am using SD s110, ble_app_uart example from SDK10.0.0 on dk pca10028 as a peripheral. The central is a laptop running linux. I am trying to establish a connection from the laptop using gatttool with the dk, but the connection always fails. canen-USTelligent Community 13Sat, 21 Nov 2015 07:35:07 GMThttps://devzone.nordicsemi.com/thread/38540?ContentTypeID=1Sat, 21 Nov 2015 07:35:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2d6d038b-695c-4c9c-a91b-98d894a154b5yafis<p>got it. Seems you have to specify the baddr of periphral as random, or gatttool assumes it to be a public bt addr. here is the command: sudo gatttool -b --interactive -t random</p><div style="clear:both;"></div>