Install PostgreSQL on ubuntu

Introduction PostgreSQL is a powerful object-relational database management system, provided under a flexible BSD-style license.[1] PostgreSQL contains many advanced features, is very fast and standards compliant. PostgreSQL has bindings for many programming languages such as C, C++, Python, Java, PHP, Ruby... It can be used to power anything from simple web applications to massive databases … Continue reading Install PostgreSQL on ubuntu

What information iwconfig provides on Ubuntu

Question: lo no wireless extensions. eth0 no wireless extensions. wmaster0 no wireless extensions. wlan0 IEEE 802.11bgn ESSID:"Network" Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated Tx-Power=20 dBm Retry min limit:7 RTS thr:off Fragment thr=2352 B Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 … Continue reading What information iwconfig provides on Ubuntu

Amazon Greengrass launches as a snap on Ubuntu

https://youtu.be/1rLxPOxVJoQ Personal note: Take a look at Ubuntu Core with Qt for Internet of Things development (6/25/2017) Last week, Amazon launched Greengrass, their new IoT platform allowing developers to create intelligent edge software. Amazon is collaborating with a variety of manufacturers to make Greengrass available on as many devices as possible from home gateways, industrial gateways … Continue reading Amazon Greengrass launches as a snap on Ubuntu

On Nautilus-dropbox installation on Ubuntu

I'll have to say it's somewhat problematic... The installation usually would stalk somewhere and later gives you this error: E: Unable to lock the administration directory /var/lib/dpkg/lock? How to fix it: sudo rm /var/lib/dpkg/lock should do the trick. You can use ps afx|grep dpkg to check if there is still a process runnning at the … Continue reading On Nautilus-dropbox installation on Ubuntu