Friday, 29 January 2016

back at brekkekiosken

src: facebook.

my second vernissage at brekkehagen storkiosk, in oslo, was held earlier this january. last year's exhibition was great, this equally as good. in a total of 12 drawings are on display. four of them were sold on the very first evening. the exhibition, with my drawings, will be on until march.

by the way, i do plan to create a proper website, displaying my drawings. until then, my old drawings can be viewed on this blog, and some of my later works are on my instagram account.

all in all i have sold 20 drawings. i never ever expected that, when i started drawing back in august 2014. and as long as it is fun i will "keep building" new things.

the deer - src: img.chronicles.no

a big thanks to those who did show up, to mr manager, and heidi, the owner of the location - src: img.chronicles.no

"don't grow up, grow down" - src: img.chronicles.no






Thursday, 28 January 2016

netstat

just listened to security now episode 544, and decided to do a netstat on my pc. interesting to find out what internet connections you have going.

C:\Windows\system32>netstat -help

Displays protocol statistics and current TCP/IP network connections.

NETSTAT [-a] [-b] [-e] [-f] [-n] [-o] [-p proto] [-r] [-s] [-t] [interval]

  -a            Displays all connections and listening ports.
  -b            Displays the executable involved in creating each connection or
                listening port. In some cases well-known executables host
                multiple independent components, and in these cases the
                sequence of components involved in creating the connection
                or listening port is displayed. In this case the executable
                name is in [] at the bottom, on top is the component it called,
                and so forth until TCP/IP was reached. Note that this option
                can be time-consuming and will fail unless you have sufficient
                permissions.
  -e            Displays Ethernet statistics. This may be combined with the -s
                option.
  -f            Displays Fully Qualified Domain Names (FQDN) for foreign
                addresses.
  -n            Displays addresses and port numbers in numerical form.
  -o            Displays the owning process ID associated with each connection.
  -p proto      Shows connections for the protocol specified by proto; proto
                may be any of: TCP, UDP, TCPv6, or UDPv6.  If used with the -s
                option to display per-protocol statistics, proto may be any of:
                IP, IPv6, ICMP, ICMPv6, TCP, TCPv6, UDP, or UDPv6.
  -r            Displays the routing table.
  -s            Displays per-protocol statistics.  By default, statistics are
                shown for IP, IPv6, ICMP, ICMPv6, TCP, TCPv6, UDP, and UDPv6;
                the -p option may be used to specify a subset of the default.
  -t            Displays the current connection offload state.
  interval      Redisplays selected statistics, pausing interval seconds
                between each display.  Press CTRL+C to stop redisplaying
                statistics.  If omitted, netstat will print the current
                configuration information once.

i found the "netstat -ban" command handy, as this gives the the name of the binary of programme using the port and ip (use "netstat -ba" for hostname instead of ip).

after being presented the long list, the next task was to go through and identify all connections and processes. from a security point of view i am publishing my result here. luckily i found nothing fishy running.

however, the question is: would a cleverly crafted virus be able to hide completely from netstat, or be able to make itself look legit?

update 16.02.09:
a gui alternative to netstat for windows is tcpview.



Wednesday, 6 January 2016

carbon footprint

i have to admit that i have done more than a fair bit of travelling in 2015, and earlier. last year i went on several trips abroad. for some of them i had no choice (work related). some where more or less important (visiting family, going to one of my best friend's wedding), but several were only for the fun of it. i am not super conscious when it comes to the environment. at least i have not been. i realise i need to change my attitude.

craziness?

in december i did travel from oslo to fuerteventura. a one week holiday in the heat, to exercise and relax. my own well-being was the only goal of this trip. from oslo to fuerteventura is almost a 6 hours flight. so 12 hours in total, on a plane, just for the purpose of some sun and fun. using carbonfootprint.com it says that this return flight results in 1.11 tonnes of CO2e.

1.11 tonnes co2e sounds much. but is it really? i found one page that helped me out.

"Picture a football field, and then imagine a round balloon with one end lined up on the goal line and the other on the 10 yards line [9.14 meters] – that is, a balloon with a diameter of 10 yards. If that balloon were filled with CO2, it would weigh about 1 ton; it would be a 1-ton CO2 balloon."
src: http://blogs.edf.org/climate411/2007/02/20/picturing-a-ton-of-co2/

source.

one ton of co2 equals about 400 kilo of waste sent to the landfill.

source.

one ton equals driving an average passenger car 2643 miles or 4235 km (in one year i used to drive a maximum of 8000 km).

miles to km conversion.

the trip to fuerteventura was a nice one. i trained well, and recharged my batteries. i have a lot more energy now, compared with what i normally do this time of year. in general i feel better. well, i felt better until i started calculating the carbon footprint i did leave by going on this trip. and then i have not added all the extra resources required to serve one hotel guest with good food, miscellaneous activities, and lush surroundings on a desert island in the atlantic ocean. i have to ask myself the question: is it possible to justify such behaviour, just for my own well-being?