Another post from your IP within 60 seconds - Page 1
Forum section: electronics / general

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 13, 2016, 11:10:52 am
content: Twice now I've gotten this message inappropriately...There isn't anyone else here posting under my IP, is there?I can't imagine this is a bizarre and rare take on the errors we've had before (and, so far as I know, quite well fixed!). Or maybe it's something new, somehow?Is my computer clock off, maybe..? (Should be solidly on NTP, though.)Tim

author: Augustus
author_rank: Regular Contributor
timestamp: October 13, 2016, 11:25:40 am
content: Your left mouse button is bouncing, time to replace

author: PA0PBZ
author_rank: Super Contributor
timestamp: October 13, 2016, 01:34:48 pm
content: Quote from: wilfred on October 13, 2016, 01:14:06 pmAnd that is exactly when it should not kick in, because you are not creating a new post, just editing. But unfortunately it does occasionally

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 13, 2016, 01:36:45 pm
content: QuoteMaybe you share your IP with thousand other People? Here in Europe is common that you get for your Mobile Internet Connection an IP Pool.

author: Brumby
author_rank: Unknown
timestamp: October 13, 2016, 02:37:55 pm
content: Quote from: PA0PBZ on October 13, 2016, 01:34:48 pmI've done immediate modifies on a post lots of times - and I've never received that message.I have encountered it, though, when posting on a thread that's moving along and tried a follow-up post within the 60 second window.In other words, it has worked exactly as expected for me.

author: nctnico
author_rank: Super Contributor
timestamp: October 13, 2016, 03:15:16 pm
content: Quote from: T3sl4co1l on October 13, 2016, 11:10:52 amI have had the same a couple of times as well. You just have to type slower.

author: SeanB
author_rank: Super Contributor
timestamp: October 13, 2016, 07:05:38 pm
content: Most common on a NAT translated IP, where the cloudflare server that is acting as a gateway has 2 users in the same country on the same NAT translator. As Lord of Nothing says, most common with wireless and mobile networks as they tend to rely heavily on NAT to have both multiple users who are many times more than trhe allocated IP pool they have, plus it makes it possible to have a mobile data connection that will handle swapping from cell tower to cell tower without breaking existing connections, as the internal iP will simply be moved from one tower to another in a wrapper, while the phone endpoint and the outside server endpoint do not see the changing path at all within reason, so no dropped connections and no orphaned packets.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 14, 2016, 06:18:44 am
content: Quote from: wilfred on October 13, 2016, 01:14:06 pmThis definitely happens from time to time: I find a thread that needs only a one-liner, after posting an opus. Naturally the one-liner gets flagged. That's sensible (if annoying).What's bizarre is, this has now happened twice, when pressing "send" after writing an "opus" as such, during which I haven't personally made another reply to the same forum.Tim

author: bitseeker
author_rank: Super Contributor
timestamp: October 14, 2016, 11:57:56 pm
content: Quote from: nctnico on October 13, 2016, 03:15:16 pmYeah, exactly. I resemble that remark.

author: Cyberdragon
author_rank: Super Contributor
timestamp: October 15, 2016, 12:27:48 am
content: On very rare occations I've had the system reasend a post again even when the first post was successful. Except this never went off against that...I had manually delete the repeat posts.

author: Brumby
author_rank: Unknown
timestamp: October 15, 2016, 06:05:40 am
content: While I feel 60 seconds is a bit long, the one thing that does irritate me is that the 60 second timer gets reset every time youattemptto post.It's not a matter of refreshing the page or any other gymnastics - it is a matter of waiting at least 60 seconds since last clicking on the 'Post' button - no matter what the outcome of that was - before another new post will be accepted.

author: Hypernova
author_rank: Unknown
timestamp: October 15, 2016, 03:22:10 pm
content: When I was with Slingshot NZ they had three proxies to buffer user traffic through by default. Can be annoying but sometimes useful as you can then use all three to download from the same file hosting service simultaneously by specifying which one to use in the browser.

author: madires
author_rank: Super Contributor
timestamp: October 15, 2016, 04:05:37 pm
content: Quote from: SeanB on October 13, 2016, 07:05:38 pmPresumably. I've had the 60 seconds error also a few times the last two weeks, and I'm pretty sure I didn't trigger it by posting too fast.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 26, 2016, 01:31:19 am
content: Damnit, it happened again. Writing a lengthy post, definitely not doing anything else in the last minute, and bam.Tim

author: bitseeker
author_rank: Super Contributor
timestamp: October 26, 2016, 03:43:55 am
content: That is rather odd.

author: madires
author_rank: Super Contributor
timestamp: October 26, 2016, 10:49:01 am
content: It's annoying, especially when you have to wait 15 minutes or more to be able to post again while trying every 2-3 minutes.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 27, 2016, 12:44:03 am
content: I swear it's now happening once every day.Any clue how and where to even begin debugging a thing like this??!!? Surely it's a server side thing, so I'm at a loss to think what I can do from here.Tim

author: bson
author_rank: Unknown
timestamp: October 27, 2016, 01:32:11 am
content: Could it be accidentally considering a preview a post?

author: Monkeh
author_rank: Super Contributor
timestamp: October 27, 2016, 01:58:22 am
content: Quote from: T3sl4co1l on October 27, 2016, 12:44:03 amAre you totally positive your IP is yours alone and you're not getting stuffed through a proxy?

author: bitseeker
author_rank: Super Contributor
timestamp: October 27, 2016, 02:12:59 am
content: I wonder if CloudFlare is doing something funky due to caching.

author: Josephine85
author_rank: Contributor
timestamp: October 27, 2016, 08:14:24 am
content: Never heard of people sharing their ip...

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: October 27, 2016, 08:55:47 am
content: Maybe it's time to fire up Wireshark and see what other network activity you have on the same machine?Are you using a Chrome browser by any chance?

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 27, 2016, 09:31:17 am
content: Quotethat is normal when you use a Mobile Internet Connection in many Country.

author: voltsandjolts
author_rank: Unknown
timestamp: October 27, 2016, 09:44:22 am
content: Quote from: Lord of nothing on October 27, 2016, 09:31:17 amAlso normal when using a VPN provider (https://www.privateinternetaccess.com/etc,etc..)

author: madires
author_rank: Super Contributor
timestamp: October 27, 2016, 10:52:05 am
content: Quote from: bitseeker on October 27, 2016, 02:12:59 amCloudflare seems to be the obvious cause. Let's check what we got for Germany:Code:$ host [url=http://www.eevblog.com]www.eevblog.com[url=http://www.eevblog.com]www.eevblog.com has address 104.31.74.133[url=http://www.eevblog.com]www.eevblog.com has address 104.31.75.133[url=http://www.eevblog.com]www.eevblog.com has IPv6 address 2400:cb00:2048:1::681f:4b85[url=http://www.eevblog.com]www.eevblog.com has IPv6 address 2400:cb00:2048:1::681f:4a85Those proxies are near DeCIX in Frankfurt. A quick search reveals that Cloudflare got 4 POPs in Germany (https://www.cloudflarestatus.com/):- Berlin- Düsseldorf- Frankfurt/Main- HamburgSo we have a configuration problem of the forum. Since a lot of users share the same Cloudflare proxies, all those users got the same source IP addresses. The forum has a "users per IP address" threshold to detect fishy users. It needs to be high enough to allow multiple users to share the same IP address, like EEs in the same company behind a NAT gateway. Also, it has to be low enough to detect malicious behaviour. While the number of active users increases, that threshold needs to be adjusted. The current value is too low, causing the "another post from your IP address" issue.

author: madires
author_rank: Super Contributor
timestamp: October 27, 2016, 12:34:45 pm
content: 172.68.51.163 is one of Cloudflare's proxies in Vienna:Code:$ traceroute 172.68.51.163[...]7 vix.edge01.vie01.as13335.com (193.203.0.195) 13.065 ms 13.153 ms 13.060 ms8 172.68.51.163 (172.68.51.163) 12.826 ms 12.801 ms 12.881 msAS13335 is Cloudflare and "vix" indicates the Vienna Internet eXchange.

author: voltsandjolts
author_rank: Unknown
timestamp: October 27, 2016, 02:50:44 pm
content: I'm not sure if I understand:Are you saying that because eevblog.com uses Cloudflare DNS servers, it also uses Cloudflare CDN services - to the extent that Cloudflare servers in your local country can actually act as reverse proxies for eevblog.com server in AUZ to speed things up a bit. When that happens, what eevblog.com thinks is my internet ip address is actually the address of the Cloudflare proxy.Is that how it works?

author: Monkeh
author_rank: Super Contributor
timestamp: October 27, 2016, 02:58:01 pm
content: CloudFlare will be passing X-Forwarded-For, so it's not likely to be them.You'll note if you look at your own posts that you see your own IP address in the bottom right corner. So let's not be jumping to 'forum misconfigured' conclusions when only one or two people out ofhundredsare having issues.

author: rstofer
author_rank: Super Contributor
timestamp: October 27, 2016, 03:13:38 pm
content: I have the same issue (erroneous timing) and I'm in the US. Specifically, I use Comcast and my problems are with the wired Internet, no wireless magic in use.Sometimes I will do a Copy just in case things go sideways.I also get the Bad Gateway error from the site. I can usually clear it by using the 'Reload this page' button. It seems strange that I can still get to the site, to the extent I get the bad gateway message, but I can't go back to a forum I was using an hour or so ago.

author: madires
author_rank: Super Contributor
timestamp: October 27, 2016, 03:38:35 pm
content: Cloudflare includes X-Forwarded-For and X-Forwarded-Proto (https://support.cloudflare.com/hc/en-us/articles/200170946-Does-CloudFlare-include-an-X-Forwarded-For-or-X-Forwarded-Proto-header-). And SMF seems to parse X-Forwarded-For (http://www.simplemachines.org/community/index.php?topic=477528.0). Sill, PeDre has the proxy's IP address logged. On my posts I see the network symbol, but no IP address. Hmm, there could be another cause, like IPv6.In case, you also got those "another post from your IP address" errors, could you please check, if your latest posts got an IP address logged. At the bottom right of your post is a network symbol. For other users is states "Logged". Does it state an IP address. If yes, IPv4 or IPv6?

author: madires
author_rank: Super Contributor
timestamp: October 27, 2016, 03:49:16 pm
content: I've checked my old posts and until 2016-09-23 my IPv4 address is logged. After that date no IP address is logged at all. BTW, I got IPv4 and IPv6, and prefer IPv6 if available.

author: Monkeh
author_rank: Super Contributor
timestamp: October 27, 2016, 03:50:25 pm
content: Disable IPv6 if you have it available and see what happens.

author: madires
author_rank: Super Contributor
timestamp: October 27, 2016, 03:56:24 pm
content: Quote from: Monkeh on October 27, 2016, 03:50:25 pmThis post is from a PC with public IPv4 only.Edit: And the forum logs my IPv4 address fine. So Cloudflare started to roll out IPv6 and SMF has problems with IPv6. Maybe it treats all IPv6 addresses as "0.0.0.0" or n/a , which might cause the issue. So all users with IPv6 could face the "Another post from your IP" error.

author: madires
author_rank: Super Contributor
timestamp: October 27, 2016, 04:34:43 pm
content: From what we've seen so far:The forum uses Cloudflare's reverse proxy service, which uses X-Forwarded-For to pass on the client's original IP address. SMF (the forum's software) takes the originating IP address and also parses X-Forwarded-For to handle proxies. For the IP address logged SMF prefers X-Forwarded-For, if available. That address is also used to detect malicious users (multiple users using the same address) and SMF has a threshold for that. About a month ago Cloudflare seems to have added IPv6 addresses to the DNS records for the forum, which causes clients with IPv4 and IPv6 to prefer the IPv6 addresses (default setting in many OSs). But obviously SMF has problems to deal with IPv6 addresses (not logged) and treats posts from IPv6 clients as being from the same IP address, causing the "Another post from your IP within 60 seconds" error.

author: bitseeker
author_rank: Super Contributor
timestamp: October 27, 2016, 06:35:17 pm
content: I haven't encountered the erroneous version of the 60-second block, but my IP address still appears correctly on my posts.

author: madires
author_rank: Super Contributor
timestamp: October 27, 2016, 06:50:49 pm
content: IPv4 or IPv6?PS: I just had the error again

author: Monkeh
author_rank: Super Contributor
timestamp: October 27, 2016, 06:51:43 pm
content: Good old IPv6. Should've been using it actively over 10 years ago, still can't get simple things to deal with it.

author: madires
author_rank: Super Contributor
timestamp: October 27, 2016, 07:18:09 pm
content: I don't get it. A lot of companies are ignoring IPv6 despite the lack of public IPv4 address space. It wasn't any surprise, took a little bit longer than expected actually. Ignoring reality costs about US$ 10 per IPv4PS: And the lovely error againLooks like, I have to tamper with my DNS to make EEVblog IPv4 only.

author: bitseeker
author_rank: Super Contributor
timestamp: October 27, 2016, 11:13:48 pm
content: Quote from: madires on October 27, 2016, 06:50:49 pmOh, IPv4.

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 27, 2016, 11:32:01 pm
content: test

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 28, 2016, 02:27:19 am
content: Quote from: bson on October 27, 2016, 01:32:11 amIt seems like it happens most on posts I've previewed...Tim

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 28, 2016, 02:37:14 am
content: Quote from: PeDre on October 27, 2016, 11:27:54 amHmm, looking over my recent posts, most don't show an IP logged. One shows,172.2.37.169which is not my IPv4 address (65.xxx).I do have IPv6 configured, so most services should be using that.I don't have any way to check what the forum server sees me as (since it doesn't seem to record it, most of the time), but I certainly don't have a proxy configured. It seems unlikely that it would be a proxy (whether accidentally or maliciously..).So, possibly it's an SMF bug?Tim

author: Monkeh
author_rank: Super Contributor
timestamp: October 28, 2016, 02:42:16 am
content: Quote from: T3sl4co1l on October 28, 2016, 02:37:14 am.. have you been working for Creation Technologies lately?QuoteISPs love to be 'helpful' with proxies, and I have no idea if SMF can handle chained X-Forwarded-For headers the way CF handle proxy chains.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 28, 2016, 02:53:24 am
content: Quote from: Monkeh on October 28, 2016, 02:42:16 amOh yeah, I post from there sometimes.Come to think of it, kind of surprised they don't have IPv6 set up...they have good ITTim

author: EEVblog
author_rank: Unknown
timestamp: October 28, 2016, 02:54:36 am
content: Quote from: T3sl4co1l on October 28, 2016, 02:37:14 amActually, I don't see the IP address next to quite a few posts here, including yours.First time I've noticed this, I thought it always logged and displayed the IP address of every post.EDIT: Yep, something is very wrong:I have never seen this before, I've always been able to track IP's on every user and every post.

author: Monkeh
author_rank: Super Contributor
timestamp: October 28, 2016, 02:56:18 am
content: It does not seem to like IPv6. Does the actual server even have IPv6?

author: Cerebus
author_rank: Super Contributor
timestamp: October 28, 2016, 03:10:56 am
content: Quote from: Monkeh on October 28, 2016, 02:56:18 amWell it's got IPv6 AAAA DNS records but that doesn't necessarily mean anything as, obviously, they will be pointing to CloudFlare.I'm native IPv6 here and have been for donkey's years. I'm also running on a stack that will pick IPv6 over IPv4 if it's available so if IPv6 has been available for the EEVBlog then that's what I'll have been using. I've see the spurious rate limiting messages recently, but not in the past.

author: Monkeh
author_rank: Super Contributor
timestamp: October 28, 2016, 03:12:01 am
content: Quote from: Cerebus on October 28, 2016, 03:10:56 amThat's why I asked about the server..

author: EEVblog
author_rank: Unknown
timestamp: October 28, 2016, 05:49:49 am
content: gnif confirmed it is ipv6 support (or lack of)I have just installed a mod to fix this, can people please do a test post so I can see if the IP address is shown, Cerebus and T3sl4co1l in particular who's IP's I can't see.

author: EEVblog
author_rank: Unknown
timestamp: October 28, 2016, 05:53:04 am
content: I've also installed another mod that supposedly fixes the cloudflare IP issue.

author: madires
author_rank: Super Contributor
timestamp: October 28, 2016, 10:48:11 am
content: This post should have an IPv6 address logged.Edit: Yes, it does.

author: Cerebus
author_rank: Super Contributor
timestamp: October 28, 2016, 12:26:31 pm
content: Quote from: EEVblog on October 28, 2016, 05:49:49 amPleased to.Editted to add: Yup, I can see the correct IPv6 address logged.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 28, 2016, 12:42:39 pm
content: Cool, thanks Dave. Hope it works!Tim