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Going off list with this, thanks to all for putting up with this much traffic!
73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 6/11/22 07:37, Adrian Fewster wrote:

Dave, Ok, I am happy to login via ssh access to check the items mentioned re service/visudo set etc.

Otherwise Mick and Alan have recommendations posted.


73


Adrian Fewster

On 12/6/22 00:31, Dave (NK7Z) wrote:

Hi Adrian,

At this point I am totally lost...? Sorry...? From what I gather, something in my install process has set up node-red to not be able to read files in my dcole directories.

dcole is the primary user setup with Ubuntu when it was installed via a net install script.? Running 20.04 now.? Fully updated, etc.

Now that I have thrown what is probably a lot of useless data in the hopes something may help, do you see anything I did wrong ion the install?

For reference, the install process was as follows:

1.? From Ubuntu's software installer, I selected Node Red, and installed it.

2.? I began writing flows...

3.? No other issues until now...

I have flows reading web pages, and showing results, etc...? Some of them parse the pages, only issues are reading local files so far...

That is the overview of what I have done so far with node-red.? I have been running Linux for a few years, but not deeply into it, as I am sure you can tell...? Thank you for your patience.

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/11/22 07:02, Adrian Fewster wrote:

Alan, Would you run node-red as root rather than your normal user,

when operating node red from that normal user's home .node-red folder ?

I am assuming that is Dave's setup..

I think setting it up correct may avoid other issues for Dave in the future.

The stat response gave us info on existing link(s) worth exploring also.

73


Adrian

On 11/6/22 23:55, Alan Blind, WA9WUD wrote:

Adrian and John

Rather than changing the file permissions, can John simply read the file with a sudo prefix?

If so, John, prepend the below, to your read command:

?"sudo -S <<< "password" <insert command here>

Alan. WA9WUD

Dave, Ok, I am happy to login via ssh access to check the items mentioned re service/visudo set etc.
Otherwise Mick and Alan have recommendations posted.
73
Adrian Fewster
On 12/6/22 00:31, Dave (NK7Z) wrote:

Hi Adrian,

At this point I am totally lost...? Sorry...? From what I gather, something in my install process has set up node-red to not be able to read files in my dcole directories.

dcole is the primary user setup with Ubuntu when it was installed via a net install script.? Running 20.04 now.? Fully updated, etc.

Now that I have thrown what is probably a lot of useless data in the hopes something may help, do you see anything I did wrong ion the install?

For reference, the install process was as follows:

1.? From Ubuntu's software installer, I selected Node Red, and installed it.

2.? I began writing flows...

3.? No other issues until now...

I have flows reading web pages, and showing results, etc...? Some of them parse the pages, only issues are reading local files so far...

That is the overview of what I have done so far with node-red.? I have been running Linux for a few years, but not deeply into it, as I am sure you can tell...? Thank you for your patience.

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/11/22 07:02, Adrian Fewster wrote:

Alan, Would you run node-red as root rather than your normal user,

when operating node red from that normal user's home .node-red folder ?

I am assuming that is Dave's setup..

I think setting it up correct may avoid other issues for Dave in the future.

The stat response gave us info on existing link(s) worth exploring also.

73


Adrian

On 11/6/22 23:55, Alan Blind, WA9WUD wrote:

Adrian and John

Rather than changing the file permissions, can John simply read the file with a sudo prefix?

If so, John, prepend the below, to your read command:

?"sudo -S <<< "password" <insert command here>

Alan. WA9WUD

Alan, Would you run node-red as root rather than your normal user,
when operating node red from that normal user's home .node-red folder ?
I am assuming that is Dave's setup..
I think setting it up correct may avoid other issues for Dave in the future.
The stat response gave us info on existing link(s) worth exploring also.
73
Adrian
On 11/6/22 23:55, Alan Blind, WA9WUD wrote:

Adrian and John

Rather than changing the file permissions, can John simply read the file with a sudo prefix?

If so, John, prepend the below, to your read command:

?"sudo -S <<< "password" <insert command here>

Alan. WA9WUD

$ ps ax o user,pid,%cpu,%mem,vsz,rss,tty,stat,start,time,comm,group,gid | grep node
to check node-red user, group,
On 11/6/22 23:33, Adrian Fewster via groups.io wrote:

also


sudo usermod -a -G node-red-group dcole



On 11/6/22 23:30, Adrian Fewster via groups.io wrote:

Dave I agree with Mick on below, and it will probably fix your issue.

Doing the other things mentioned are useful in general.

Will be good to know what the link(s) are tho

73


Adrian

On 11/6/22 23:18, Mick - W8BE wrote:

[Edited Message Follows]

Dave,

Your file permissions are fine for read and write.

-rw-rw-rw- 1 dcole dcole 3 Jun 11 05:20 /home/dcole/scripts/solar_data/incoming/lotwcount.txt. What group is node red being run from?
You can check /etc/group. If it is not in the same group you can add dcole to the node red group

chown 'node-red-group':dcole //home/dcole/scripts/solar_data/incoming/lotwcount.txt





Can you even write to the file? From all the above posts, I am getting the impression you can't even write to it.

At this point Dave,? I would just work with Adrian on this. Too many cooks in the kitchen.




--
Mick, W8BE

also
sudo usermod -a -G node-red-group dcole
On 11/6/22 23:30, Adrian Fewster via groups.io wrote:

Dave I agree with Mick on below, and it will probably fix your issue.

Doing the other things mentioned are useful in general.

Will be good to know what the link(s) are tho

73


Adrian

On 11/6/22 23:18, Mick - W8BE wrote:

[Edited Message Follows]

Dave,

Your file permissions are fine for read and write.

-rw-rw-rw- 1 dcole dcole 3 Jun 11 05:20 /home/dcole/scripts/solar_data/incoming/lotwcount.txt. What group is node red being run from?
You can check /etc/group. If it is not in the same group you can add dcole to the node red group

chown 'node-red-group':dcole //home/dcole/scripts/solar_data/incoming/lotwcount.txt





Can you even write to the file? From all the above posts, I am getting the impression you can't even write to it.

At this point Dave,? I would just work with Adrian on this. Too many cooks in the kitchen.




--
Mick, W8BE

Do visudo edit, then
sudo find -L / -samefile lotwcount.txt
On 11/6/22 23:18, Dave (NK7Z) wrote:

Same result sir:

dcole@nostromo:~/scripts/solar_data/incoming$ find -L / -samefile lotwcount.txt
find: ‘/.cache’: Permission denied
find: ‘/root’: Permission denied
find: File system loop detected; ‘/snap/ffmpeg/821/usr/bin/X11’ is part of the same file system loop as ‘/snap/ffmpeg/821/usr/bin’.
find: File system loop detected; ‘/snap/ffmpeg/current/usr/bin/X11’ is part of the same file system loop as ‘/snap/ffmpeg/current/usr/bin’.
find: File system loop detected; ‘/snap/ffmpeg/1286/usr/bin/X11’ is part of the same file system loop as ‘/snap/ffmpeg/1286/usr/bin’.
find: File system loop detected; ‘/snap/odrive-unofficial/2/usr/bin/X11’ is part of the same file system loop as ‘/snap/odrive-unofficial/2/usr/bin’.
find: ‘/snap/core18/2344/etc/ssl/private’: Permission denied

I stopped cut here, pages and pages of files found...

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/11/22 06:09, Adrian Fewster wrote:

Try


cd /home/dcole/scripts/solar_data/incoming

find -L / -samefile lotwcount.txt






..extra symbols have appeared in below ?

On 11/6/22 23:02, Dave (NK7Z) wrote:

|find -L / ||-samefile |/home/dcole/scripts/solar_data/incoming/lotwcount.txt

[Edited Message Follows]
Dave,
Your file permissions are fine for read and write.
-rw-rw-rw- 1 dcole dcole 3 Jun 11 05:20 /home/dcole/scripts/solar_data/incoming/lotwcount.txt. What group is node red being run from?
You can check /etc/group. If it is not in the same group you can add dcole to the node red group
chown 'node-red-group':dcole //home/dcole/scripts/solar_data/incoming/lotwcount.txt
Can you even write to the file? From all the above posts, I am getting the impression you can't even write to it.
At this point Dave,? I would just work with Adrian on this.? Too many cooks in the kitchen.
--
Mick, W8BE

Try
cd /home/dcole/scripts/solar_data/incoming
find -L / -samefile lotwcount.txt
..extra symbols have appeared in below ?
On 11/6/22 23:02, Dave (NK7Z) wrote:

|find -L / ||-samefile |/home/dcole/scripts/solar_data/incoming/lotwcount.txt

Also see ; It's very useful when running scripts, processes with sudo lines.
On 11/6/22 22:57, Dave (NK7Z) wrote:

Let me absorb this a bit...? I am quite new to Node-Red, and have never even heard of the visudo before...

I have learned to understand what changes I make first though, so I am going slow and careful here...

I brought up visudo, and I don't see dcole anywhere...

If all of this is to insure dcole can use sudo, I can already, however I do need a password when I invoke sudo.

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/11/22 05:48, Adrian Fewster wrote:

Dave, Is dcole in visudo setup as ;

$ sudo visudo


# Allow members of group sudo to execute any command
%sudoALL=(ALL:ALL) ALL
dcoleALL=(ALL) NOPASSWD:ALL

This allows password free sudo usage


Also

apply

sudo chmod 777 /home/dcole/scripts/solar_data/incoming/lotwcount.txt

Does it function now ?

Check the node-red service user or root status ?


73



Adrian

On 11/6/22 22:36, Dave (NK7Z) wrote:

Hi Adrian,
Here are the results:

dcole@nostromo:~$ stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? File: /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? Size: 3???????????? Blocks: 8????????? IO Block: 4096 regular file
Device: 801h/2049d??? Inode: 60424491??? Links: 1
Access: (0666/-rw-rw-rw-)? Uid: ( 1000/?? dcole)?? Gid: ( 1000/ dcole)
Access: 2022-06-11 05:25:02.072231081 -0700
Modify: 2022-06-11 05:35:04.027054533 -0700
Change: 2022-06-11 05:35:04.027054533 -0700
?Birth: -
dcole@nostromo:~$


Also, thank you!

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/10/22 23:19, Adrian Fewster wrote:

stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt

would be interesting to see also and the function ?


Adrian

On 11/6/22 15:50, Mick - W8BE wrote:

Dave can? you run the following command and print the output:

ls -l /home/dcole/scripts/solar_data/incoming/lotwcount.txt
--
Mick, W8BE

Also see ; It's very useful when running scripts, processes with sudo lines.
On 11/6/22 22:57, Dave (NK7Z) wrote:

Let me absorb this a bit...? I am quite new to Node-Red, and have never even heard of the visudo before...

I have learned to understand what changes I make first though, so I am going slow and careful here...

I brought up visudo, and I don't see dcole anywhere...

If all of this is to insure dcole can use sudo, I can already, however I do need a password when I invoke sudo.

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/11/22 05:48, Adrian Fewster wrote:

Dave, Is dcole in visudo setup as ;

$ sudo visudo


# Allow members of group sudo to execute any command
%sudoALL=(ALL:ALL) ALL
dcoleALL=(ALL) NOPASSWD:ALL

This allows password free sudo usage


Also

apply

sudo chmod 777 /home/dcole/scripts/solar_data/incoming/lotwcount.txt

Does it function now ?

Check the node-red service user or root status ?


73



Adrian

On 11/6/22 22:36, Dave (NK7Z) wrote:

Hi Adrian,
Here are the results:

dcole@nostromo:~$ stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? File: /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? Size: 3???????????? Blocks: 8????????? IO Block: 4096 regular file
Device: 801h/2049d??? Inode: 60424491??? Links: 1
Access: (0666/-rw-rw-rw-)? Uid: ( 1000/?? dcole)?? Gid: ( 1000/ dcole)
Access: 2022-06-11 05:25:02.072231081 -0700
Modify: 2022-06-11 05:35:04.027054533 -0700
Change: 2022-06-11 05:35:04.027054533 -0700
?Birth: -
dcole@nostromo:~$


Also, thank you!

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/10/22 23:19, Adrian Fewster wrote:

stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt

would be interesting to see also and the function ?


Adrian

On 11/6/22 15:50, Mick - W8BE wrote:

Dave can? you run the following command and print the output:

ls -l /home/dcole/scripts/solar_data/incoming/lotwcount.txt
--
Mick, W8BE

Ok. So that just does 'return msg;' ?
73
Adrian
On 11/6/22 22:59, Dave (NK7Z) wrote:

I believe you are asking if there is any code in the section for code for the file node, (is that called a function as well as a node?), nothing is in that part.

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/11/22 05:49, Adrian Fewster wrote:

Dave, also what is in the function attached to that read node please?


73


Adrian


On 11/6/22 22:36, Dave (NK7Z) wrote:

Hi Adrian,
Here are the results:

dcole@nostromo:~$ stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? File: /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? Size: 3???????????? Blocks: 8????????? IO Block: 4096 regular file
Device: 801h/2049d??? Inode: 60424491??? Links: 1
Access: (0666/-rw-rw-rw-)? Uid: ( 1000/?? dcole)?? Gid: ( 1000/ dcole)
Access: 2022-06-11 05:25:02.072231081 -0700
Modify: 2022-06-11 05:35:04.027054533 -0700
Change: 2022-06-11 05:35:04.027054533 -0700
?Birth: -
dcole@nostromo:~$


Also, thank you!

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/10/22 23:19, Adrian Fewster wrote:

stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt

would be interesting to see also and the function ?


Adrian

On 11/6/22 15:50, Mick - W8BE wrote:

Dave can? you run the following command and print the output:

ls -l /home/dcole/scripts/solar_data/incoming/lotwcount.txt
--
Mick, W8BE

Also what is the link to the file ?
|find -L / ||-samefile |/home/dcole/scripts/solar_data/incoming/lotwcount.txt
On 11/6/22 22:36, Dave (NK7Z) wrote:

Hi Adrian,
Here are the results:

dcole@nostromo:~$ stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? File: /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? Size: 3???????????? Blocks: 8????????? IO Block: 4096?? regular file
Device: 801h/2049d??? Inode: 60424491??? Links: 1
Access: (0666/-rw-rw-rw-)? Uid: ( 1000/?? dcole)?? Gid: ( 1000/ dcole)
Access: 2022-06-11 05:25:02.072231081 -0700
Modify: 2022-06-11 05:35:04.027054533 -0700
Change: 2022-06-11 05:35:04.027054533 -0700
?Birth: -
dcole@nostromo:~$


Also, thank you!

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/10/22 23:19, Adrian Fewster wrote:

stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt

would be interesting to see also and the function ?


Adrian

On 11/6/22 15:50, Mick - W8BE wrote:

Dave can? you run the following command and print the output:

ls -l /home/dcole/scripts/solar_data/incoming/lotwcount.txt
--
Mick, W8BE

Dave, also what is in the function attached to that read node please?
73
Adrian
On 11/6/22 22:36, Dave (NK7Z) wrote:

Hi Adrian,
Here are the results:

dcole@nostromo:~$ stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? File: /home/dcole/scripts/solar_data/incoming/lotwcount.txt
? Size: 3???????????? Blocks: 8????????? IO Block: 4096?? regular file
Device: 801h/2049d??? Inode: 60424491??? Links: 1
Access: (0666/-rw-rw-rw-)? Uid: ( 1000/?? dcole)?? Gid: ( 1000/ dcole)
Access: 2022-06-11 05:25:02.072231081 -0700
Modify: 2022-06-11 05:35:04.027054533 -0700
Change: 2022-06-11 05:35:04.027054533 -0700
?Birth: -
dcole@nostromo:~$


Also, thank you!

73, and thanks,
Dave (NK7Z)

ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/10/22 23:19, Adrian Fewster wrote:

stat /home/dcole/scripts/solar_data/incoming/lotwcount.txt

would be interesting to see also and the function ?


Adrian

On 11/6/22 15:50, Mick - W8BE wrote:

Dave can? you run the following command and print the output:

ls -l /home/dcole/scripts/solar_data/incoming/lotwcount.txt
--
Mick, W8BE