Swanno
Super Anarchist
Not sure on weight but I did hear that it had 1/3 more carbon than a ‘normal’ build
The Ocean Race 2023 leg 2: Cabo Verde to Capetown
- Thread starter Herman
- Start date
Then this needs to be a 100% private DNS server which won't resolve anything public.
As the dns server cannot tell if my query to somehost.somedomain.com is a genuine dns query or has hidden message embedded in either the query itself or the payload returned. This is very hard covert channel to block. You simply cannot do it while maintaining ability for the public services to work.
This will break things and most nothing public will work, including most apps.
Yes, but this pretty much prevents using anything modern like social media or youtube or similar with hundreds of POPs and CDNs and locations all over the globe.
Also the this IP whitelist will need to update real time, and with things like AWS route 53 even this will be not enough, as it can literally change on the fly per request.
Its absolutely is not an option for Whatsapp. Its end to end encrypted - if you allow it, then you have zero aka no control what goes inside.
Bottom line is, if you allow any access to internet, you cannot control nor block anything 100%. You can try, but it will never cover everything.
Airgapping is only way to be sure, and even then you might have countless "interesting" possible covert channels, like hidden messages inside gribs / video files / social media post tags / ais destination or eta field etc. You would need to basically control everything.
Thats the point, there are no public services on this hypothetical network. DNS is a distributed system that is designed to work with partial or complete indexes, corporate networks often work in this fashion where the internal DNS server provides routes for internal traffic and then delegates for outside addresses, in this scenario you just wouldn't delegate to another DNS but cache anything you want, then it doesn't matter if the client sends an invalid query, it'll just error as not being an address you wish to resolve.
Yes but this is easy to automate based on your DNS resolver.
You misunderstand my point, of course you can't read whats inside, you are just allowing access to it.
Thats my point, your not allowing access to the internet, but essentially a VLAN.
oceangeek
Member
5 minutes of "life aboard at 20+ knots" on 11th hour. A luxury cruise it ain't...
sailing4life
New member
You can download the image and import it under WX Data - Images - Import and than manually georeference some points with coordinates. If you then open the image it is shown over the map.
Then you won't be able to use any public services, really. Why then dns at all - why not just hard coded host files?
If you allow access to Whatsapp, you essentially allow access to everything, as it can transfer files of any content.
Yes, thats what I said by airgapping it.
But once you allow any public services, its a lost battle if you cannot control every piece of gear connecting into it with an iron fist policy.
Great sequence.
11th currently seems to be the fastest in terms of pure speed, but Malizia has better VMG. They will all have to gybe soon. The boundary is comming closer.
oceangeek
Member
it's looking like 11th and Malizia might run along the boundary from 45 down to 47.
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@Herman I'm not sure the 105% Windspeed Scaling is the correct adjustment. My understanding is that boats normalize windspeed readings and polars to 10m windspeeds to match forecasts and so crew have a consistent 'feel' on various boats. Stan Honey talked about crews losing confidence in instruments if they're not calibrated/corrected to 10m, especially with tall masts, because their senses and the instruments don't line up.
TheDragon
Super Anarchist
This is nuts, they are going to have hearing damage eventually.
As it means the device can't edit it, and means you can allow devices like tablets and phones.
wildbirdtoo
Member
This update from Holcim made me laugh.. Kevin is so cheerful!
Schakel
Dayboat sailor
How do you get to Cape Town in these conditions?
My bets are on 11 th hour racing.
My bets are on 11 th hour racing.
Yes nice one
(but short), they have a patch on the main sail no ? That can be seen at then end 0:59 , that was reported ?
damien
New member
- 38
- 136
Yes, they made a hole during first leg, the repair was recorded in a video you can see. They don't change anything in Mindelo...Yes nice one
damien
New member
- 38
- 136
Tonight's routing...
Situation 17z : the 3 leaders have been taken over by the cold front yesterday and gybe SE in westerlies. They are going south-east, will gybe at 23z if they follow GFS, 6z tomorrow if they follow ECMWF...
None of them will have to cross the ice exclusion zone.
the 10/02 at 0z they will be slowed by a HP ridge from Santa Helena HP. Following boats will get closer to the leaders thanks to another cold front coming from another LP that will push the HP ridge.
This CF will go with the boats to Cape Town. ETA 0830z the 12/02. You can see on the routing Guyot will cut his 500 milles late to just a few milles...
On the pictures : Black : GFS routing&wind, red, ECMWF routing&wind. Wind 110%. Polar : imoca_foil 105% downwind. Software : qtVlM
Pic 1 : satellite picture with current condition
Pic 2 : situation the 10/02 0z CF approaching
Pic 3 : situation the 11/02 0z
Pic 4 : situation the 12/02 0z . wind + rain
Since the doldrums, I found ECMWF has been more reliable that GFS for route planning, boats have often choose the ECMWF routing... Guyot East position was favoured by GFS that predicted a smaller HP when boats were there.
dg_sailingfan
Super Anarchist
Rainbow Spirit
Anarchist
The 'Wall of Death' of light winds will block the way to Cape Town, all they can do is aim for the narrowest section and hope for the best.
