Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Iran has now been offline for 96 hours

twitter.com

Post reply on HN
Print view View original

11–20 of 194 posts

Re: Iran has now been offline for 96 hours

#11

Post by echoangle »

tripplyons wrote: post #9
payamb wrote: post #7

Starlink appear to be jammed too

Wouldn't you just be able to shield the antenna to only point up? I think that is how some aircraft stay protected from GPS jamming/spoofing, and I assume you can do something similar.

The satellite still needs to be able to receive the signal from the terminal. If the Iranian Government sets up transmitters that send up Noise at the satellites, the satellite isn't going to be able to receive the low power transmissions from the terminal if the jammer is close enough to the terminal.

It depends on the Jamming power and the satellite beamforming how close you would have to be to jam it.

This is not the case for GPS because GPS is receive-only and the satellite doesn't listen for user transmissions (although you could still try to jam the control uplink to prevent synchronization which would decrease accuracy over a few days, but then you would have to be close to the GPS control stations and you'll probably get arrested soon)

Re: Iran has now been offline for 96 hours

#12

Post by jpmattia »

tripplyons wrote: post #9
payamb wrote: post #7

Starlink appear to be jammed too

Wouldn't you just be able to shield the antenna to only point up? I think that is how some aircraft stay protected from GPS jamming/spoofing, and I assume you can do something similar.

I would guess that someone is beaming a whole lot of wideband power at the satellites themselves, to overload the input receivers.

Re: Iran has now been offline for 96 hours

#13

Post by submeta »

Western governments do not want democracy in Iran. They want the son of Shah back in Iran, the Shah whose father tortured and exploited Iranians, and that led to the revolution and the rise of the mullahs. The US and Israel want regime change so Israel can dominate the ME. Just like they replaced Assad in Syria by Jolani, a wanted Al Qaeda terrorist who does not oppose Israel in any way but slaughter kurds and alavites because they are moderate muslims.

The revolts in Iran are backed by US/Israel. They openly brag about it on every channel. They don’t care about Iranian‘s freedoms. They are the same who support every dictator in the region if and only if that dictator accepts Israel‘s dominance.

Edit: Yeah, let’s downvote instead if arguing.

Edit 2: https://x.com/ggreenwald/status/2010798811288133695

> Glenn Greenwald:

> Trump's former CIA Director and the largest newspapers of the Israeli media can state explicitly and clearly that the Mossad is all over the protests in Iran, and yet still people will deny it and say only a conspiracy theorist could believe such a crazy tale.

Re: Iran has now been offline for 96 hours

#14

Post by Drupon »

deadbabe wrote: post #10

Horrible, but also very exciting. Imagine the huge content drop we’re gonna get when it comes back online and all the images and videos will go out all at once.

This is one of those thoughts you are supposed to keep to yourself and feel bad about having had to begin with because it reflects poorly on the morals you were raised with.

Re: Iran has now been offline for 96 hours

#15

Post by joshstrange »

dpoloncsak wrote: post #8

There's been some talk of people using Starlink to stay online. Is this a practical counter measure, or is Iran just not yet prepared to deal with them? It's my understanding Iran polices the ISPs, who aren't assigning IP addresses at this time. Iran could treat the dishes as contraband, but short of working with Starlink, is there a practical way for them to prevent satellite internet? You could flood all channels w…

They did seem to block Starlink with jamming.

See: https://news.ycombinator.com/item?id=46575224

Re: Iran has now been offline for 96 hours

#16

Post by csomar »

observationist wrote: post #3

This looks like it might be the end for the current regime. There are still people getting information out, and they are tearing down and burning state buildings - around 3000 protesters killed since the crackdown began, but there appear to be tens, if not hundreds, of thousands of people who have risen up against the ayatollah, with an unknown number of state forces and officials killed. Crazy start to the year.

Very unlikely. Unlike Syria or Venezuela, the Iranian regime has an ideological base and a very solid base of supporters. A civil war has more odds than that base of supporters accepting a new secular regime.

Re: Iran has now been offline for 96 hours

#17

Post by EB-Barrington »

observationist wrote: post #3

This looks like it might be the end for the current regime. There are still people getting information out, and they are tearing down and burning state buildings - around 3000 protesters killed since the crackdown began, but there appear to be tens, if not hundreds, of thousands of people who have risen up against the ayatollah, with an unknown number of state forces and officials killed. Crazy start to the year.

[dead]

Re: Iran has now been offline for 96 hours

#18

Post by tripplyons »

echoangle wrote: post #11
tripplyons wrote: post #9

Earlier quoted context omitted.

Wouldn't you just be able to shield the antenna to only point up? I think that is how some aircraft stay protected from GPS jamming/spoofing, and I assume you can do something similar.

The satellite still needs to be able to receive the signal from the terminal. If the Iranian Government sets up transmitters that send up Noise at the satellites, the satellite isn't going to be able to receive the low power transmissions from the terminal if the jammer is close enough to the terminal. It depends on the Jamming power and the satellite beamforming how close you would have to be to jam it. This is not…

I did not consider that direction of communication! Seems much easier to locate and send nonsense to satellites than to land-based terminals.

Re: Iran has now been offline for 96 hours

#19

Post by ianburrell »

dpoloncsak wrote: post #8

There's been some talk of people using Starlink to stay online. Is this a practical counter measure, or is Iran just not yet prepared to deal with them? It's my understanding Iran polices the ISPs, who aren't assigning IP addresses at this time. Iran could treat the dishes as contraband, but short of working with Starlink, is there a practical way for them to prevent satellite internet? You could flood all channels w…

Iran has deployed jammers for Starlink. It sounds like they got help from Russia and China. They may not be jamming Starlink directly, but GPS that Starlink needs to locate dishes.

Easiest way would be to fly drones or planes around and look for the dishes. Should be possible to receive and triangulate the signals.

The problem for Iran regime is that they are busy putting down the uprising.

Post reply on HN