Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Sean Casey

Pages: [1] 2 3 ... 7
1
Applications / Re: DMARC error
« on: August 18, 2022, 12:22:36 am »
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:email@yourdomain.com;ruf=mailto:email@yourdomain.com

The DMARC entry is a recommendation provided to the receiving server on how to handle email received from Per's mail server that doesn't satisfy SPF and DKIM security checks.  Per's entry is communicating "relaxed/none" policies (i.e., don't reject/quarantine, no actions to be taken), so I don't see his DMARC record getting in the way of delivering his mail. 

Per is using a third party's mail server to host his domain and his SPF record seemed okay for that purpose, but I can't see his DKIM record.   If he doesn't have a DKIM record set up, he likely can identify the means to have the mail server generate a secure public key for his domain which he will need to use to create his DNS DKIM record. 

I host my own mail server, and after 18 years, I recently moved DNS from my ISP to a different DNS services provider which required me to brush up on creating DNS records.   My ISP managed my DNS entries and it was nearly impossible to talk to anyone who could make needed changes.  My new DNS services provider has now provided me full access to set up and manage DNS.   Unfortunately, I still need to work with my ISP to manage my reverse DNS entries.

2
Applications / Re: DMARC error
« on: August 17, 2022, 05:51:19 pm »
The receiving mail server looked at your DNS entries for DKIM and then SPF to validate your mail server's identity.   Your mail server's public encryption key is included in your mail server's DNS DKIM entry, usually in the form of:
   
     v=DKIM1;p=<public key here>

You can identify your DKIM record using this site: https://dnschecker.org/dkim-record-checker.php

Your mail server's DNS SPF entry tells the other mail server if it should accept mail from one or more mail servers for your domain.   My mail server's SPF record identifies a single mail server and looks like this:

     v=spf1 ip4:<IP address here> -all

You can use this site to view your SPF record details:  https://dnschecker.org/spf-record-validation.php


3
Setup & Installation / UEFI Boot Manager for 5.1
« on: May 17, 2022, 01:07:15 am »
Is AN going to provide a UEFI capable boot manager with the upcoming 5.1 release?  While one of my ArcaOS/Linux computers will continue using GRUB 2, I have another computer where I would like to boot into two different GUID ArcaOS system partitions.

4
Off Topic discussions / Re: Slowing Down But Not Hitting the Brakes
« on: May 12, 2022, 09:26:51 pm »
I’m so sorry to hear of your loss. Wishing you/your family peace during this difficult time.

5
Applications / Re: Test build of dooble with qt5
« on: April 30, 2022, 09:42:29 pm »
Its been ungodly slow and really crappy finding web sites that will load, this is probably due to the fact  its running in a virtual machine.

It can be a little quirky in loading some previously visited sites, but a couple attempts usually loads a site.  I'm using VMware and performance is fine (4c, 4GB RAM), even with sites having a lot of media (e.g., Dailymail.co.uk).   The browser has been very stable.

I'm very impressed with the preview, especially when considering the few resources that have been supporting the development effort. 

6
Web applications / Re: The MicroWeb DOS web browser
« on: January 05, 2022, 04:44:02 pm »
It is possible to run DOS packet drivers in a DOS session if you disable the DOS/2 networking, but not recommended, FTP Software (the company) also sold a TCP/IP stack for OS/2 that had a VDD that allowed DOS sessions to use DOS packets via emulation, but alas that is impossible to get hold of these days. The Essex Systems stack also had some VDD trickery, but I cannot remember it it supported the FTPS packets specification.

Is it true these older OS/2 TCP/IP and NetBIOS over TCP implementations used proprietary APIs which limited their use to only the network applications/services that were distributed with these packages? 

7
Hi Andi,

What was the problem with Injoy? 

I recently created a plain ArcaOS install with Injoy using a VMware VM with two 1-gigabit NICs (MultiMac32-MMLEM) dual core, 4 GB ram.  Using default rules with NAT, Web browsing with a lot of media (e.g., DailyMail) wasn't very crisp.  I looked at the performance related settings but couldn't find a solution.   The Injoy manual mentioned that a select few applications do not function well with NAT, such as MS NetMeeting and some streaming media and online entertainment applications.

I would like to give it another try sometime, but I would be interested in hearing how it is working for you?   I have been using Netfilters and snort v.3 configured for IPS.

8
Programming / Re: Can 64-bit programs run on OS/2?
« on: December 28, 2021, 05:02:10 pm »
I would love to see OS/2 supporting the x86 processor's 36-bit memory addressing, to provide OS/2 access to 64 GB of memory.  36-bit Page Size Extension was grafted onto Windows NT and most of the operating system was unaware of PSE-36, making it much easier for Microsoft to implement. 

It could be implemented as a kernel driver (like a RAM disk driver) that could do 4 MB page directory table remapping above 4 GB.  Memory hungry applications, like our new QT Web browser, could then utilize the PSE-36 driver to benefit from the added memory.

A dream...



9
Storage / Re: Sharing drive between OS/2 and linux
« on: December 16, 2021, 04:41:46 am »
HPFS has that 2GB file size limit, no?

Yes, HPFS has a 2GB file size limitation and a 64GB volume size limitation.  I have a 20GB HPFS 386 partition, used by ArcaOS, I mount R/W under Linux.

10
Storage / Re: Sharing drive between OS/2 and linux
« on: December 14, 2021, 09:43:16 pm »
I mount my OS/2 HPFS file systems read/write on Linux. 

11
Utilities / Re: MultiUser support for OS/2
« on: September 24, 2021, 08:08:46 pm »
Mergent International's PC/DACS provided authentication and single sign-on.   Syntegration's The Secure Workplace provided authentication and also discretionary access controls at a user and group level. 

12
Applications / Re: pmMail and TLS 1.2
« on: July 15, 2021, 08:28:23 pm »
Stunnel, which is provided with PMMail, supports TLSv1.3 tunneling.  Look for the readme in your \PMMail\BIN\Stunnel directory.  Would TLSv1.3 work with your provider?

13
Networking / Re: Windows 2000 client access
« on: May 20, 2021, 04:43:00 am »
The version 4.4 client update resolves my problem, thank you very much. 

14
Networking / Windows 2000 client access
« on: May 18, 2021, 06:03:00 am »
I would like to access a LAN Server 5.2 named pipes service from a Windows 2000 client, which requires authentication to LAN Server.  I have not been able to manually hack an install of IBM's 1997 NT Primary Logon Client on Windows 2000 and was curious if authenticating a Windows 2000 client is possible?

In exploring my options, it appears LAN Server does not allow anonymous access to named pipes even while working from the server.  I need to authenticate to the LAN locally from the LAN Server console before I am able to access a named pipes service via an OS/2 or WIN-OS2 server session. 

15
Utilities / Re: controlling stunnel as if it were a daemon
« on: May 18, 2021, 03:33:27 am »

I am closing stunnel by sending it SIGINT...

Code: [Select]
c:\pgmcntrl\pgmcntrl /close /exename:stunnel.exe

That works, and to add to Andi's tip, you could also use the following to kill the stunnel process.  xargs is provided with the findutils rpm package.

           plist |grep STUNNEL | cut -c18-20 | xargs kill -9

           (Note: STUNNEL is case sensitive)

Pages: [1] 2 3 ... 7