The forum is really laggy recently.
- langdons
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12 Sep 2025 01:53 - 12 Sep 2025 12:57 #334856
by langdons
Replied by langdons on topic The forum is really laggy recently.
Cloudflare caches content of websites proxied through it.
That could explain the speedup.
Also, Cloudflare DNS is probably faster than whatever DNS the forum normally uses.
The speedup is almost certainly multifactorial.
Keep in mind that I didn't expect this to work, or even improve anything, I just added an A record to the forum because I already own a domain, I already have a Cloudflare account, so I tried adding an A recor nd for the forum because it might work, and it did.
If you are worried that linuxcnc.langdonstaab.ca is out to steal your data for some reason, don't use it.
You can use forum.linuxcnc.org, or the direct IP, if you like.
I will not attempt to list my alternate link on Google, because it is not official, it's just an alternate Cloudflare route to the forum.
If you are suspicious, create a free cloudflare account, connect it to a domain, and do exactly what I say I did, and see what happens, you will get the same result as me.
If you do not believe that the IP address of linuxcnc.langdonstaab.ca is actually a Cloudflare IP, check bgp.he.net.
That could explain the speedup.
Also, Cloudflare DNS is probably faster than whatever DNS the forum normally uses.
The speedup is almost certainly multifactorial.
Keep in mind that I didn't expect this to work, or even improve anything, I just added an A record to the forum because I already own a domain, I already have a Cloudflare account, so I tried adding an A recor nd for the forum because it might work, and it did.
If you are worried that linuxcnc.langdonstaab.ca is out to steal your data for some reason, don't use it.
You can use forum.linuxcnc.org, or the direct IP, if you like.
I will not attempt to list my alternate link on Google, because it is not official, it's just an alternate Cloudflare route to the forum.
If you are suspicious, create a free cloudflare account, connect it to a domain, and do exactly what I say I did, and see what happens, you will get the same result as me.
If you do not believe that the IP address of linuxcnc.langdonstaab.ca is actually a Cloudflare IP, check bgp.he.net.
Last edit: 12 Sep 2025 12:57 by langdons. Reason: Added more info.
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- unknown
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12 Sep 2025 05:34 #334860
by unknown
Replied by unknown on topic The forum is really laggy recently.
t sure aint a DNS he's supplying or connecting to.
First is a ping to establish an IP address.
Second is attempting to get a name resolved by what Tommy thinks is a Domain Name Server.
Third is attempting to get a name resolved by an actual Domain Name Server.
If anyone thinks I've doctored the results you can try them for yourselves.
First
Second
Third
In summary the OP is added the host linuxcnc.langdonstaab.ca to DNS records, the same process I had to go through when running my own server for hosting the early Linuxcnc Mint ISO's I created. So when using linuxcnc.langdonstaab.ca you are connecting to an unknown server serving out forum pages.
Whether or not you can login with your username using a password that is not associated to your account at forum.linuxcnc.org is unknown. If it is possible to do that, I'm not even going to try because I have zero trust in the OP's setup, is unknown, but if it is possible it could be one enormous phishing scam.
Whilst he has made enough posts to get Platinum member, there by adding some trust, I can not recall actually having given any advice that is proper.
If he has no nefarious intent I still would be wondering about security and such.
Yeah it may sound crazy, but hopefully I've proven that the OP has not done anything to do with DNS.
First is a ping to establish an IP address.
Second is attempting to get a name resolved by what Tommy thinks is a Domain Name Server.
Third is attempting to get a name resolved by an actual Domain Name Server.
If anyone thinks I've doctored the results you can try them for yourselves.
First
ping linuxcnc.langdonstaab.ca
PING linuxcnc.langdonstaab.ca (104.21.64.1) 56(84) bytes of data.
64 bytes from 104.21.64.1: icmp_seq=1 ttl=46 time=117 ms
64 bytes from 104.21.64.1: icmp_seq=2 ttl=46 time=187 ms
64 bytes from 104.21.64.1: icmp_seq=3 ttl=46 time=114 ms
64 bytes from 104.21.64.1: icmp_seq=4 ttl=46 time=148 ms
^Z
[1]+ Stopped
Second
dig @104.21.64.1 forum.linuxcnc.org
;; communications error to 104.21.64.1#53: timed out
;; communications error to 104.21.64.1#53: timed out
;; communications error to 104.21.64.1#53: timed out
; <<>> DiG 9.18.30-0ubuntu0.24.04.2-Ubuntu <<>> @104.21.64.1 forum.linuxcnc.org
; (1 server found)
;; global options: +cmd
;; no servers could be reached
Third
dig @8.8.8.8 forum.linuxcnc.org
; <<>> DiG 9.18.30-0ubuntu0.24.04.2-Ubuntu <<>> @8.8.8.8 forum.linuxcnc.org
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20522
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;forum.linuxcnc.org. IN A
;; ANSWER SECTION:
forum.linuxcnc.org. 2046 IN A 162.243.45.186
;; Query time: 35 msec
;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
;; WHEN: Fri Sep 12 15:15:42 AEST 2025
;; MSG SIZE rcvd: 63
In summary the OP is added the host linuxcnc.langdonstaab.ca to DNS records, the same process I had to go through when running my own server for hosting the early Linuxcnc Mint ISO's I created. So when using linuxcnc.langdonstaab.ca you are connecting to an unknown server serving out forum pages.
Whether or not you can login with your username using a password that is not associated to your account at forum.linuxcnc.org is unknown. If it is possible to do that, I'm not even going to try because I have zero trust in the OP's setup, is unknown, but if it is possible it could be one enormous phishing scam.
Whilst he has made enough posts to get Platinum member, there by adding some trust, I can not recall actually having given any advice that is proper.
If he has no nefarious intent I still would be wondering about security and such.
Yeah it may sound crazy, but hopefully I've proven that the OP has not done anything to do with DNS.
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- juergen-home
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12 Sep 2025 06:29 - 12 Sep 2025 06:36 #334863
by juergen-home
Replied by juergen-home on topic The forum is really laggy recently.
Attachments:
Last edit: 12 Sep 2025 06:36 by juergen-home.
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- Hakan
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12 Sep 2025 07:08 - 12 Sep 2025 07:17 #334865
by Hakan
Replied by Hakan on topic The forum is really laggy recently.
Yes it does.Always stuck at the same place when using wget.
A bit random speed though. Sometimes very slow, like a minute and sometimes fast.
Going langdons route to the forum follows the same overall speed, but as of now is always faster.
And fetching using http is always much faster than using https, however only some static stuff like logos
can be fetched using http.
That points to the TLS handshake being the cause of delays.
But, as fun as it is to try to diagnose this from remote and coming up with temporary solutions like langdons url redirect,
it must be possible to check the website hosting the forum.
Surely someone, somewhere, hopefully the admins, knows how to have the website checked.
Right?
A bit random speed though. Sometimes very slow, like a minute and sometimes fast.
Going langdons route to the forum follows the same overall speed, but as of now is always faster.
And fetching using http is always much faster than using https, however only some static stuff like logos
can be fetched using http.
That points to the TLS handshake being the cause of delays.
But, as fun as it is to try to diagnose this from remote and coming up with temporary solutions like langdons url redirect,
it must be possible to check the website hosting the forum.
Surely someone, somewhere, hopefully the admins, knows how to have the website checked.
Right?
Last edit: 12 Sep 2025 07:17 by Hakan.
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- unknown
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12 Sep 2025 08:48 - 12 Sep 2025 08:53 #334871
by unknown
Replied by unknown on topic The forum is really laggy recently.
Please be aware it not a redirection, it would appear he is hosting a copy/clone of the forum at forum.linuxcnc.org.
There is no DNS running on his server, my previous post proves this by trying to get the server he is running to resolve a web address, no connection was made, the port that handles name resolution #53 gave no response. Where as in my 3 code snippet I attempted a to resolve the name of the same machine (forum.linuxcnc.org) via one of google's DNS (8.8.8.8) and everything went fine.
Tommy and others that are claiming this to be a DNS service are wrong, you are logging into a webserver, that is replicationg the one that hosts forum.linuxcnc.org, run by someone who refuses to answer any questions about security (see my post on the very first page on this thread), which surely should rasie questions.
Please think of you internet security in this matter. If something goes wrong who will take responsibility.
Quoting the OP
Please fellow members think, think really hard, read the whole thread, take note of how he refuses to ask any direct questions. The misspelling is direct from his post.
There is no DNS running on his server, my previous post proves this by trying to get the server he is running to resolve a web address, no connection was made, the port that handles name resolution #53 gave no response. Where as in my 3 code snippet I attempted a to resolve the name of the same machine (forum.linuxcnc.org) via one of google's DNS (8.8.8.8) and everything went fine.
Tommy and others that are claiming this to be a DNS service are wrong, you are logging into a webserver, that is replicationg the one that hosts forum.linuxcnc.org, run by someone who refuses to answer any questions about security (see my post on the very first page on this thread), which surely should rasie questions.
Please think of you internet security in this matter. If something goes wrong who will take responsibility.
Quoting the OP
This statement does not fill me with confidence. If it was on the level the OP would be transparent. Do you really think he doesn't know what is going on ?Who cares?
It works.
It's better than foum.limnuxcnc.org.
Who cares how it works, or why it's faster, it just is.
Please fellow members think, think really hard, read the whole thread, take note of how he refuses to ask any direct questions. The misspelling is direct from his post.
Last edit: 12 Sep 2025 08:53 by unknown.
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- Hakan
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12 Sep 2025 09:16 #334872
by Hakan
Replied by Hakan on topic The forum is really laggy recently.
The whole point is that it should appear to be somewhere else. It's not. It's a redirect.
Forget DNS. It's not.
Forget DNS. It's not.
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12 Sep 2025 11:00 #334876
by unknown
Replied by unknown on topic The forum is really laggy recently.
It's not a redirect, it's being hosted on another unverified server, linuxcnc.langdonstaab.ca . A redirect would be mean putting in forum.linuxcnc.org and then being sent to another server.
This is a case of having to contact another server, that being linuxcnc.langdonstaab.ca, which if it was redirecting to forum.linuxcnc.org, how would speed up the response of the machine at forum.linuxcnc.org ?
I'm under no illusion it's a DNS thing, but some maybe, based on tommy's comments. Tommy was also mentioning ROOT servers within the context of routing, this is incorrect. I even posted a link to the role of ROOT servers on the internet.
To summarise:
1 DNS is not the issue, I confirmed this early on via an entry for forum.linucnc.org in my /etc/hosts file. So no external DNS is required resolving the IP address for forum.linuxcnc.org on that machine. This file is used to resolve localhost to 127.0.0.1.
2 The OP is not providing any DNS service, as some may think & have stated.
3 The slow response of the forum is the machine at forum.linuxcnc.org
4 Connecting to linuxcnc.langdonstaab.ca will not speed up the response time of the server at fourm.linuxcnc.org
5 Nor will connecting linuxcnc.langdonstaab.ca speed up DNS resolution.
6 linuxcnc.langdonstaab.ca must be running a local instance of the forum, how this has been accomplished I can not say. But his lack of response to any questions regarding security and permission make me somewhat suspicious.
7 linuxcnc.langdonstaab.ca & forum.linuxcnc.org are on two different machines.
8 Even if one machine had both addresses assigned to it, which makes no sense, it would not resolve any issues with slow response times.
Just for context:
I have a server at home with one NIC that provides a wiki, ftp, file servers, web servers and a gitlab server, all of which have different ip addresses assigned to unique FQDNs on my intranet. The name resolution is handled by a BSD machine running router/dns/dhpcd services, hence I can access every machine via a name, whether it be ssh, file services or any another service that may require name resolution.
This is a case of having to contact another server, that being linuxcnc.langdonstaab.ca, which if it was redirecting to forum.linuxcnc.org, how would speed up the response of the machine at forum.linuxcnc.org ?
I'm under no illusion it's a DNS thing, but some maybe, based on tommy's comments. Tommy was also mentioning ROOT servers within the context of routing, this is incorrect. I even posted a link to the role of ROOT servers on the internet.
To summarise:
1 DNS is not the issue, I confirmed this early on via an entry for forum.linucnc.org in my /etc/hosts file. So no external DNS is required resolving the IP address for forum.linuxcnc.org on that machine. This file is used to resolve localhost to 127.0.0.1.
2 The OP is not providing any DNS service, as some may think & have stated.
3 The slow response of the forum is the machine at forum.linuxcnc.org
4 Connecting to linuxcnc.langdonstaab.ca will not speed up the response time of the server at fourm.linuxcnc.org
5 Nor will connecting linuxcnc.langdonstaab.ca speed up DNS resolution.
6 linuxcnc.langdonstaab.ca must be running a local instance of the forum, how this has been accomplished I can not say. But his lack of response to any questions regarding security and permission make me somewhat suspicious.
7 linuxcnc.langdonstaab.ca & forum.linuxcnc.org are on two different machines.
8 Even if one machine had both addresses assigned to it, which makes no sense, it would not resolve any issues with slow response times.
Just for context:
I have a server at home with one NIC that provides a wiki, ftp, file servers, web servers and a gitlab server, all of which have different ip addresses assigned to unique FQDNs on my intranet. The name resolution is handled by a BSD machine running router/dns/dhpcd services, hence I can access every machine via a name, whether it be ssh, file services or any another service that may require name resolution.
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- langdons
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12 Sep 2025 12:43 #334879
by langdons
Replied by langdons on topic The forum is really laggy recently.
I use Cloudflare DNS.
Cloudflare replaces the IP with a Cloudflare IP.
As stated previously, all I did was paste the IP of forum.linuxcnc.org, retreived from bgp.he.net, into an A record in my Cloudflare DNS page.
Traffic running through linuxcnc.langdonstaab.ca is proxied by Cloudflare, replacing the IP of forum.linuxcnc.org with a Cloudflare IP.
I am not some hacker cloning the website for nefarious purposes. (a la rufuus.digital)
Cloudflare replaces the IP with a Cloudflare IP.
As stated previously, all I did was paste the IP of forum.linuxcnc.org, retreived from bgp.he.net, into an A record in my Cloudflare DNS page.
Traffic running through linuxcnc.langdonstaab.ca is proxied by Cloudflare, replacing the IP of forum.linuxcnc.org with a Cloudflare IP.
I am not some hacker cloning the website for nefarious purposes. (a la rufuus.digital)
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- unknown
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12 Sep 2025 22:01 #334899
by unknown
Replied by unknown on topic The forum is really laggy recently.
My sincere apologies of course, the classic Networking implementation of the Turbo Encabulator.
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- langdons
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12 Sep 2025 22:21 #334902
by langdons
Replied by langdons on topic The forum is really laggy recently.
Huh?
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