Electrum servers are currently under a DoS attack

[bL4nkcode]

Electrum servers are currently under a DoS attack. We are working on a more robust version of the electrum server. In the meantime, affected users should disable auto-connect, and select their server manually.

https://twitter.com/ElectrumWallet/status/1114987055736655873

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[OmegaStarScream]

Did anyone manage to find servers that are not being ddosed? I disabled the auto connect and I've been trying to connect to at least 10-15 servers and I still can't.

[mocacinno]

If the DDos attack continues, we can probably setup a private electrumX node for bitcointalk users... It's all written in python, so it shouldn't be that hard to add some authentication so non-invited users cannot connect. But usually those attacks don't continue that long...

[anu1908]

this issue is not yet resolved? who the hell do this? the one who run malicious server maybe?

lots of my friends are having problems with electrum since yesterday. though there's a solution for this, they prefer to use auto-selection as usual.

[hugeblack]

usually, those attacks don't continue that long...

There have been some syncing problems yesterday "it took more than 15 minutes" but today the wallet works well even with auto connect server.
Perhaps such solutions may be useful in the future but the situation is safe for now.

[AB de Royse777]

Okay now I understand why I was/am having this connection issue. From the morning I noticed it keeps synchronising and running slow like s**t LOL

Thanks for the post.

Cheers :-)

Did anyone manage to find servers that are not being ddosed? I disabled the auto connect and I've been trying to connect to at least 10-15 servers and I still can't.

By the way, it does connect (my one is set to auto) and allow to do transaction

[BitMaxz]

I thought I'm the only one who experienced syncing issue lately that is why I created transaction temporarily in coinb.in.

I was planning weeks ago to have my own Electrum server to contribute and to keep it safe to DDOS attacks and Phishing attacks but the problem how much I could spend to start a server and I don't have much knowledge protecting a server but I have little knowledge using cloudflare.

Do you have any idea how much budget do I need to start my own Electrum server and let me know if there is a guide to make a server that includes cloudflare to add a server and protect the server to DDOS attacks?

[jackg]

Can I downgrade electrum for it to connect. I've completely emptied my wallet so there's no risk of a phishing attack doing anything..

It's good to hear you're trying to find a solution.

Bitmaxz, is cloudflare capable of that? I though since clients connect to electrum in a manner that is similar to a bot then therell be a load of issues... If anyone has a private electrum node set up and fancies giving someone a hand the let me know. (also why don't we just try dosing that bad electrum server)....

[BitMaxz]

More/less just like budget required to run Bitcoin full nodes. You can run Bitcoin full nodes + electrum server on Raspberry Pi 3.

I've no idea about cloudflare integration, but there are many ways to protect server from DDoS attack such as block known malicious IP and limit request amount.

My raspberry is currently broken so my plan is to run it in AWS or DO with their free credit.

Well, I don't have much knowledge of other software only Cloudflare that I know to use to protect it from DDoS attack.

Bitmaxz, is cloudflare capable of that?

I don't know but it might be possible?

Temporarily I'm using https//coinb.in for making transaction from electrum offline and get hex then broadcast it to coinb.in just to make a transaction.

[stevegee58]

Can I downgrade electrum for it to connect. I've completely emptied my wallet so there's no risk of a phishing attack doing anything..

It's good to hear you're trying to find a solution.

Bitmaxz, is cloudflare capable of that? I though since clients connect to electrum in a manner that is similar to a bot then therell be a load of issues... If anyone has a private electrum node set up and fancies giving someone a hand the let me know. (also why don't we just try dosing that bad electrum server)....

All Electrum clients were forced to upgrade recently due to phishing vulnerabilities so downgrading won't help.

I've found that Electrum does connect but you have to be patient and wait a few minutes.  It's annoying because it used to connect instantly but not a show-stopper.

Cloudflare probably won't help in this situation.

[jackg]

My raspberry is currently broken so my plan is to run it in AWS or DO with their free credit.

Vod tried running a full node on an aws instance, I think he said it cost him $200/month.

How do you manage to break a raspberry pi!? I mean I couldn't install bitcoin core on mine but still...

And actually there was a thread where I was asking about making a vps instance from yself to run a full node and it got quite a lot of good suggestions, I think most of those were valued at aroun 10 to 20 euros a month. I didn't go through with the idea because I'll just run my own node when I get roujnd to it, I'm in the process of configuring an old laptop for it.

[BitMaxz]

Vod tried running a full node on an aws instance, I think he said it cost him $200/month.

How do you manage to break a raspberry pi!? I mean I couldn't install bitcoin core on mine but still...
~snip~

Too expensive to run a full node on AWS instance I thought $20 per month is enough or maybe it depends on the machine specs?
What is the minimum required to run a full node?

What I mean about my Raspberry Pi it's totally dead after my son drops it into the water salt then after one day when I opened it all parts are rusty.

[Abdussamad]

AWS is premium web hosting. If you want to run electrumx what you need is a bargain basement dedi from ovh, online.net or hetzner. Most public servers run in hetzner's DCs.  If you want to run electrum personal server a 4GB ram VPS from ramnode, vultr or DO will suffice. Make sure to enable pruning in bitcoin core to save space.

However unless you need the special features of electrum there is little point in running a complicated setup like above. Much easier to just switch to bitcoin core.

[50 Cent]

In the meantime, affected users should disable auto-connect, and select their server manually.

are no problem when generate new wallet offline?, because first time open have choose auto or manually server

[Abdussamad]

Non of the servers seem to be working ATM. Seems like the network is dead.

[HCP]

Seems to be working fine for me ... 2019-04-09 03:22 UTC

Granted, it took a few minutes to finish syncing, but it definitely connected and synced up OK... I just created a new copy of Ledger Hardware wallet (following OS reinstall).

[pooya87]

Non of the servers seem to be working ATM. Seems like the network is dead.

i honestly have not yet encountered any problems so far with connectivity in the past couple of days since the news about DoS attacks came out. every time i open Electrum (3.3.4) it automatically connects to multiple servers (currently and syncs easily.

[Lucius]

i honestly have not yet encountered any problems so far with connectivity in the past couple of days since the news about DoS attacks came out. every time i open Electrum (3.3.4) it automatically connects to multiple servers (currently and syncs easily.

I confirm the same, I did not have any problems with sync - it take 5-10 seconds and I always have it on automatic. Is there any explanation why some users have big problems to connect to server and sync, while others do not have such problems? Except those who use versions older then 3.3.4, all users with latest version should have the same user experience. Is there something else what influence on sync problems, except fact that servers are under DoS attack?

[jackg]

I had a complete outage yesterday (I think) it still won't load currency data now.

Electrum servers are currently under a DoS attack. We are working on a more robust version of the electrum server. In the meantime, affected users should disable auto-connect, and select their server manually.

https://twitter.com/ElectrumWallet/status/1114987055736655873

Perhaps they could use something like Andrea's schildbach added to android electrum and get them. To ping compatible core nodes?

[OmegaStarScream]

By the way, it does connect (my one is set to auto) and allow to do transaction

It's still not functional for me. It says either stuck at synchronization or shows "Not connected" all the time even after changing servers.