Date   

Re: 8Gb RPI4 info.

Ray Wells
 

I do, completely <grin>

Ray vk2tv

On 10/6/20 8:50 am, Charles Gallo wrote:
Actually, I gather best practice is not to REMOVE the user Pi, but to disable the account


Charlie
73 de KG2V
Http://www.thegallos.com


On Jun 9, 2020, at 6:35 PM, Ray Wells <vk2tv@...> wrote:

Ever since I first started using the Pi SBC in 2013 I've created a new user account and given it sudo capability. I also create a password for root, and then remove user Pi because there are hundreds of thousands of computers using that user name by default.

Computer security is about making it as difficult as you can for a potential intrusion. If you keep user Pi the door is only closed, not locked, and a hacker is halfway into your computer with just one thing to guess, a password, instead of two things, a user name and a password. Make it difficult, make the hackers pick on someone else, with an unlocked door.

Ray vk2tv

On 10/6/20 1:35 am, John D Hays - K7VE wrote:
As always the pi user should be given a new, more secure password.

On Tue, Jun 9, 2020 at 7:53 AM Teton Amateur Radio Repeater Association (TARRA) <tarra@... <mailto:tarra@...>> wrote:

> Thanks that is good idea, of just adding adding a user and
keeping the
> Pi user id too.
Leaves a door for the hackers to come in.
Mick - W7CAT



--
John D. Hays
Kingston, WA
K7VE





Re: 8Gb RPI4 info.

Charles Gallo
 

Actually, I gather best practice is not to REMOVE the user Pi, but to disable the account


Charlie
73 de KG2V
Http://www.thegallos.com

On Jun 9, 2020, at 6:35 PM, Ray Wells <vk2tv@...> wrote:

Ever since I first started using the Pi SBC in 2013 I've created a new user account and given it sudo capability. I also create a password for root, and then remove user Pi because there are hundreds of thousands of computers using that user name by default.

Computer security is about making it as difficult as you can for a potential intrusion. If you keep user Pi the door is only closed, not locked, and a hacker is halfway into your computer with just one thing to guess, a password, instead of two things, a user name and a password. Make it difficult, make the hackers pick on someone else, with an unlocked door.

Ray vk2tv

On 10/6/20 1:35 am, John D Hays - K7VE wrote:
As always the pi user should be given a new, more secure password.

On Tue, Jun 9, 2020 at 7:53 AM Teton Amateur Radio Repeater Association (TARRA) <tarra@... <mailto:tarra@...>> wrote:

> Thanks that is good idea, of just adding adding a user and
keeping the
> Pi user id too.
Leaves a door for the hackers to come in.
Mick - W7CAT



--
John D. Hays
Kingston, WA
K7VE






Re: 8Gb RPI4 info.

Ray Wells
 

Ever since I first started using the Pi SBC in 2013 I've created a new user account and given it sudo capability. I also create a password for root, and then remove user Pi because there are hundreds of thousands of computers using that user name by default.

Computer security is about making it as difficult as you can for a potential intrusion. If you keep user Pi the door is only closed, not locked, and a hacker is halfway into your computer with just one thing to guess, a password, instead of two things, a user name and a password. Make it difficult, make the hackers pick on someone else, with an unlocked door.

Ray vk2tv

On 10/6/20 1:35 am, John D Hays - K7VE wrote:
As always the pi user should be given a new, more secure password.

On Tue, Jun 9, 2020 at 7:53 AM Teton Amateur Radio Repeater Association (TARRA) <tarra@... <mailto:tarra@...>> wrote:

> Thanks that is good idea, of just adding adding a user and
keeping the
> Pi user id too.
Leaves a door for the hackers to come in.
Mick - W7CAT



--
John D. Hays
Kingston, WA
K7VE



PiTNC9k6 settings

N5XMT
 

Anyone have the settings/params for 1200 baud?  When I fired mine up, Baud was set to 2550, everything else was 255, and Center Freq was 2550...
Can't find more documentation than the little the manual has about changing I2C address and baudrate
Thanks


Re: 8Gb RPI4 info...

N5XMT
 

I wish I still had my Commodore 64

On Jun 9, 2020, at 10:39, Allen <alhiggins@...> wrote:
Lawrence,
  Motorola 6502, now you are dating your self. I remember the Commadore that blew away the performance of the IBM because IBM had sloppy programming and multi platforming chips.  LOL...

--
Allen Higgins
Brunswick, Ohio
KE8KZO


Re: 8Gb RPI4 info...

David KD4E <dcolburn@...>
 

Use MX Linux. No dependency problems, it's all tested before added to repository. Great Forum support.


Re: 8Gb RPI4 info...

 

1st microprocessor I learned assembler on.

On Tue, Jun 9, 2020 at 10:39 AM Allen <alhiggins@...> wrote:
Lawrence,
  Motorola 6502, now you are dating your self. I remember the Commadore that blew away the performance of the IBM because IBM had sloppy programming and multi platforming chips.  LOL...

--
Allen Higgins
Brunswick, Ohio
KE8KZO



--
John D. Hays
Kingston, WA
K7VE

 


Re: 8Gb RPI4 info.

Mike Short
 

Safest system is one that when you log in it shuts down 

On Tue, Jun 9, 2020 at 10:36 John D Hays - K7VE <john@...> wrote:
As always the pi user should be given a new, more secure password.

On Tue, Jun 9, 2020 at 7:53 AM Teton Amateur Radio Repeater Association (TARRA) <tarra@...> wrote:

> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too.
Leaves a door for the hackers to come in.

Mick - W7CAT



--
John D. Hays
Kingston, WA
K7VE

 


Re: 8Gb RPI4 info...

Allen
 

Lawrence,
  Motorola 6502, now you are dating your self. I remember the Commadore that blew away the performance of the IBM because IBM had sloppy programming and multi platforming chips.  LOL...

--
Allen Higgins
Brunswick, Ohio
KE8KZO


Re: 8Gb RPI4 info.

Chuck M
 

How secure does it need to be?  If only running ham programs, turned off otherwise, have simple password.

If running personal stuff, or others have access, then more security is needed.

If testing applications, suggest keeping it very simple.  Also if trying different installs on separate cards, makes it easier to keep track.

What ever makes sense to you.

73
Chuck
KD9DVB



On Tue, Jun 9, 2020 at 11:36 AM, John D Hays - K7VE
<john@...> wrote:
As always the pi user should be given a new, more secure password.

On Tue, Jun 9, 2020 at 7:53 AM Teton Amateur Radio Repeater Association (TARRA) <tarra@...> wrote:

> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too.
Leaves a door for the hackers to come in.

Mick - W7CAT



--
John D. Hays
Kingston, WA
K7VE

 


Re: 8Gb RPI4 info.

 

As always the pi user should be given a new, more secure password.

On Tue, Jun 9, 2020 at 7:53 AM Teton Amateur Radio Repeater Association (TARRA) <tarra@...> wrote:

> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too.
Leaves a door for the hackers to come in.

Mick - W7CAT



--
John D. Hays
Kingston, WA
K7VE

 


Re: 8Gb RPI4 info.

N5XMT
 

Well, you can't remove the root account, and it is always there on every Linux system.
Having been in IT for over 30 years, by your reasoning, why have any accounts?  makes it 100% secure...

On Tue, Jun 9, 2020 at 8:06 AM Teton Amateur Radio Repeater Association (TARRA) <tarra@...> wrote:

You need to have two things to log in; username and password. So why provide half of what they need? It's your system, do as you like.

Mick - W7CAT

----- Original Message -----
From: Marty Hartwell
To: RaspberryPi-4-HamRadio@groups.io
Sent: Tuesday, June 09, 2020 09:02:19 AM
Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info.

> I guess I don't see how it is any more insecure, especially if one
> changes the
>
> default password for the pi user as we are told to do. That plus having
> a decent
>
> password should be as secure as if the user is left as pi.
>
> Marty kd8bj
>
>
> On 6/9/20 9:53 AM, Teton Amateur Radio Repeater Association (TARRA) wrote:
> >
> >> > Thanks that is good idea, of just adding adding a user and keeping the
> >> > Pi user id too.
> > Leaves a door for the hackers to come in.
> > Mick - W7CAT
> >
> > ----- Original Message -----
> > From: Marty Hartwell
> > To: RaspberryPi-4-HamRadio@groups.io
> > Sent: Tuesday, June 09, 2020 08:35:29 AM
> > Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info...
> >
> > > Hi
> > >
> > > Thanks that is good idea, of just adding adding a user and keeping the
> > > Pi user id too. I haven't
> > >
> > > used a windows PC for years on a regular basis, and also haven't been a
> > > system admin on Unix
> > >
> > > for over 20 years now and there have been a lot of changes in that
> > > amount of time. I do
> > >
> > > remember quite a lot though. I was just hoping there might be some
> > write
> > > up on some pitfalls
> > >
> > > to watch out for.
> > >
> > > Marty kd8bj
> > >
> > >
> > > On 6/8/20 5:09 PM, N5XMT wrote:
> > > > You would add a user.  Trying to change the name of a user will
> > > > possibly cause issues down the road with permissions. If you are
> > > > wanting to use it to replace a windows PC, I would suggest finding an
> > > > introductory Linux book to read to familiarize yourself a bit first.
> > > >
> > > > Get BlueMail for Android
> > > > On Jun 8, 2020, at 13:17, Marty Hartwell > > > wrote:
> > > >
> > > > Ok, good to know, I guess I should of known that but didn't even
> > > > consider it.
> > > >
> > > > The subject line I guess made me question.
> > > >
> > > > Thanks, I am thinking of replacing a laptop with one of the 8 GB
> > > > ones for the
> > > >
> > > > home PC.
> > > >
> > > > Does anyone know of a link to a description on how to change the
> > > > user id from pi
> > > >
> > > > to something else. I don't want to make it multi  user, just the
> > > > user so it looks more
> > > >
> > > > like my laptop currently does.
> > > >
> > > >
> > > > Marty
> > > >
> > > >
> > > > On 6/8/20 3:11 PM, N5XMT wrote:
> > > >> They are all 64 bit ones.  Even the 3B and 3B+ are 64 bit
> > > >> architecture
> > > >>
> > > >>
> > > >> On Mon, Jun 8, 2020 at 12:19 PM Marty Hartwell <
> > > >> mhartwe@... > wrote:
> > > >>
> > > >> Hi Joe
> > > >>
> > > >> Is it one of the 64bit ones?
> > > >>
> > > >>
> > > >> Marty kd8bj
> > > >>
> > > >> On 6/8/20 1:15 PM, Joe, KO8V wrote:
> > > >>> Just had one delivered today from CanaKit.
> > > >>>
> > > >>> --
> > > >>> 73
> > > >>> Joe, KO8V
> > > >>
> > > >
> > >
> > >
> > >
> > >
> > --
> > Untitled Document
> >
> >
> > 0
> >
>
>
>
>
--

 

0


Re: 8Gb RPI4 info.

N5XMT
 

Not if you change the pi password, like you should do even if that is the only account you use


On Tue, Jun 9, 2020 at 7:53 AM Teton Amateur Radio Repeater Association (TARRA) <tarra@...> wrote:

> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too.
Leaves a door for the hackers to come in.

Mick - W7CAT

----- Original Message -----
From: Marty Hartwell
To: RaspberryPi-4-HamRadio@groups.io
Sent: Tuesday, June 09, 2020 08:35:29 AM
Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info...

> Hi
>
> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too. I haven't
>
> used a windows PC for years on a regular basis, and also haven't been a
> system admin on Unix
>
> for over 20 years now and there have been a lot of changes in that
> amount of time. I do
>
> remember quite a lot though. I was just hoping there might be some write
> up on some pitfalls
>
> to watch out for.
>
> Marty kd8bj
>
>
> On 6/8/20 5:09 PM, N5XMT wrote:
> > You would add a user.  Trying to change the name of a user will
> > possibly cause issues down the road with permissions.  If you are
> > wanting to use it to replace a windows PC, I would suggest finding an
> > introductory Linux book to read to familiarize yourself a bit first.
> >
> > Get BlueMail for Android
> > On Jun 8, 2020, at 13:17, Marty Hartwell > > > wrote:
> >
> > Ok, good to know, I guess I should of known that but didn't even
> > consider it.
> >
> > The subject line I guess made me question.
> >
> > Thanks, I am thinking of replacing a laptop with one of the 8 GB
> > ones for the
> >
> > home PC.
> >
> > Does anyone know of a link to a description on how to change the
> > user id from pi
> >
> > to something else. I don't want to make it multi  user, just the
> > user so it looks more
> >
> > like my laptop currently does.
> >
> >
> > Marty
> >
> >
> > On 6/8/20 3:11 PM, N5XMT wrote:
> >> They are all 64 bit ones.  Even the 3B and 3B+ are 64 bit
> >> architecture
> >>
> >>
> >> On Mon, Jun 8, 2020 at 12:19 PM Marty Hartwell <
> >> mhartwe@... > wrote:
> >>
> >> Hi Joe
> >>
> >> Is it one of the 64bit ones?
> >>
> >>
> >> Marty kd8bj
> >>
> >> On 6/8/20 1:15 PM, Joe, KO8V wrote:
> >>> Just had one delivered today from CanaKit.
> >>>
> >>> --
> >>> 73
> >>> Joe, KO8V
> >>
> >
>
>
>
>
--

 

0


Re: 8Gb RPI4 info...

Dave Wade
 

Lawrence,

 

Excuse the rant that follows….

 

The remark was merely to disarm the “well Linux is faster” brigade, who insist its mana from heaven, yet every time I try it and then attempt to install some (simple) software I fall down some hell hole of library clashes.

The latest battle was with “cmake” which is also supposed to be the “42” of makes, yet trying to get a recent version of it onto my lubuntu box makes the 12 labors of Hercules seem like a gentle Sunday stroll, and the conjugation of Spanish verbs straight forward.

 

I ended up manually copying the binaries into /usr/local/bin. Folks tell me this may make future updating “hard” but seeing as there are only 4 or 5 I am sure I can easily delete them later when I need to this and allowed me to install openwebrx and get my SDR going. Just to get closer to the topics, I was trying the lubuntu box (HP Miniserver) just to see how much interference my PI generates on 2mtrs. The answer seems to be “a lot” so next task is linear PSU for the PI…

 

As for “others” well not that’s current. RISC is hardware, not software. Solaris might work, but the Intel port is picky about hardware. NT4 or Windows/2000 would probably be OK but so long out of support not worth trying.

Really its just poor hardware. The Intel Atom CPU is optimized for low power consumption. The battery lasts for three or four hours. However whilst the designers fulfilled this part of the design, it seems, they forgot that to be useful it needs to execute more than one instruction a fortnight….

 

… as for operating systems getting in the way, well in normal times I demonstrate the replica Baby at the Museum of Science and Industry in Manchester

 

https://www.scienceandindustrymuseum.org.uk/whats-on/meet-baby

 

… and having only seven instructions and 32 words of storage it makes event a PIC chip look like a Super Computer, never mind an Arduino

 

Dave

G4UGM

(and yes its me on the picture. Only because they wanted a lady as well and Christine was there….)

 

 

 

From: RaspberryPi-4-HamRadio@groups.io <RaspberryPi-4-HamRadio@groups.io> On Behalf Of Lawrence Macionski via groups.io
Sent: 09 June 2020 15:19
To: RaspberryPi-4-HamRadio@groups.io
Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info...

 

Dave-
your comment "it doesn’t matter which OS, Windows/XP, 7 or 10, or a host of light weight Linux systems. All are equally slow)" Is there better? some RISC or perhaps obscure "Solaris"?   Don't get me wrong, to me the O/S is like going to a restaurant. You get to choose, tables, dine in or carry out. eat on the patio, Punch the chef in the nose. To get to the meat and potatoes--- the program.. and the speed you get it. depends on if it's been compiled and how good that is, or natively written in machine code, and just how many people do that these days. Not I since the 6502 days...

So given any O/S once you select the program... it runs at some speed dependent on if it's using an interperator, or how good the complier is, or if someone actually wrote it in machine language. even then how many "calls" are being made to the O/S or drivers, and so on. Then on top of all of that, what overhead is going on.....An O/S does not necessarly determine speed of a "job" or the program. Speed is determined on many factors such as the number of processes running, cache, DMA's,  interrupts, swap space,  and who the programmer was and how he attacked and solved the programming task.

That's why the lowly ARDUINO works as well as it does, there is no O/S only machine language code running. Now it still can be tweaked by the quality of the compiler, and the programmers ability. to write the coding structure for efficient execution.

Back in the day of my 1st programming class at Henry Ford College maybe 1968, the instructor gave us a programming problem an engineering drawing of a block with various holes drilled in it. We were given a 2x4x4 piece of wood and loaded it into a NC drill press and ran our paper tape. You passed if you drilled the holes, right number in the right place, at the right depth...The instructor had a go-no go gauge that verified location and depth of holes. That was Pass-FAIL. Go-no GO. If Go,Your grade was determined by the instructor pinning the paper tape to the wall and who had the shortest paper tape..got the highest grade..  One gal had a paper tape twice as long as everyone else but by the GO-NO go  guage she passed. She had no idea as to how to be productive.  

So to me the O/s is an evil necessity in order to load, execute, move, copy, delete or save a program. Some early O/S's like CP/M and DOS batch, that's about all you could do.. old guys well know the program pip...



Re: 8Gb RPI4 info.

Marty Hartwell
 

Well I don't see how you can provide an added user with out a user name and a password

all part of the standard procedure. Done with an admin tool called adduser.

Marty kd8bj


On 6/9/20 10:06 AM, Teton Amateur Radio Repeater Association (TARRA) wrote:

You need to have two things to log in; username and password. So why provide half of what they need? It's your system, do as you like.

Mick - W7CAT

----- Original Message -----
From: Marty Hartwell
To: RaspberryPi-4-HamRadio@groups.io
Sent: Tuesday, June 09, 2020 09:02:19 AM
Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info.

> I guess I don't see how it is any more insecure, especially if one
> changes the
>
> default password for the pi user as we are told to do. That plus having
> a decent
>
> password should be as secure as if the user is left as pi.
>
> Marty kd8bj
>
>
> On 6/9/20 9:53 AM, Teton Amateur Radio Repeater Association (TARRA) wrote:
> >
> >> > Thanks that is good idea, of just adding adding a user and keeping the
> >> > Pi user id too.
> > Leaves a door for the hackers to come in.
> > Mick - W7CAT
> >
> > ----- Original Message -----
> > From: Marty Hartwell
> > To: RaspberryPi-4-HamRadio@groups.io
> > Sent: Tuesday, June 09, 2020 08:35:29 AM
> > Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info...
> >
> > > Hi
> > >
> > > Thanks that is good idea, of just adding adding a user and keeping the
> > > Pi user id too. I haven't
> > >
> > > used a windows PC for years on a regular basis, and also haven't been a
> > > system admin on Unix
> > >
> > > for over 20 years now and there have been a lot of changes in that
> > > amount of time. I do
> > >
> > > remember quite a lot though. I was just hoping there might be some
> > write
> > > up on some pitfalls
> > >
> > > to watch out for.
> > >
> > > Marty kd8bj
> > >
> > >
> > > On 6/8/20 5:09 PM, N5XMT wrote:
> > > > You would add a user.  Trying to change the name of a user will
> > > > possibly cause issues down the road with permissions. If you are
> > > > wanting to use it to replace a windows PC, I would suggest finding an
> > > > introductory Linux book to read to familiarize yourself a bit first.
> > > >
> > > > Get BlueMail for Android
> > > > On Jun 8, 2020, at 13:17, Marty Hartwell > > > wrote:
> > > >
> > > > Ok, good to know, I guess I should of known that but didn't even
> > > > consider it.
> > > >
> > > > The subject line I guess made me question.
> > > >
> > > > Thanks, I am thinking of replacing a laptop with one of the 8 GB
> > > > ones for the
> > > >
> > > > home PC.
> > > >
> > > > Does anyone know of a link to a description on how to change the
> > > > user id from pi
> > > >
> > > > to something else. I don't want to make it multi  user, just the
> > > > user so it looks more
> > > >
> > > > like my laptop currently does.
> > > >
> > > >
> > > > Marty
> > > >
> > > >
> > > > On 6/8/20 3:11 PM, N5XMT wrote:
> > > >> They are all 64 bit ones.  Even the 3B and 3B+ are 64 bit
> > > >> architecture
> > > >>
> > > >>
> > > >> On Mon, Jun 8, 2020 at 12:19 PM Marty Hartwell <
> > > >> mhartwe@... > wrote:
> > > >>
> > > >> Hi Joe
> > > >>
> > > >> Is it one of the 64bit ones?
> > > >>
> > > >>
> > > >> Marty kd8bj
> > > >>
> > > >> On 6/8/20 1:15 PM, Joe, KO8V wrote:
> > > >>> Just had one delivered today from CanaKit.
> > > >>>
> > > >>> --
> > > >>> 73
> > > >>> Joe, KO8V
> > > >>
> > > >
> > >
> > >
> > >
> > >
> > --
> > Untitled Document
> >
> >
> > 0
> >
>
>
>
>
--

 
0


Re: 8Gb RPI4 info.

Teton Amateur Radio Repeater Association (TARRA)
 

You need to have two things to log in; username and password. So why provide half of what they need? It's your system, do as you like.

Mick - W7CAT

----- Original Message -----
From: Marty Hartwell
To: RaspberryPi-4-HamRadio@groups.io
Sent: Tuesday, June 09, 2020 09:02:19 AM
Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info.

> I guess I don't see how it is any more insecure, especially if one
> changes the
>
> default password for the pi user as we are told to do. That plus having
> a decent
>
> password should be as secure as if the user is left as pi.
>
> Marty kd8bj
>
>
> On 6/9/20 9:53 AM, Teton Amateur Radio Repeater Association (TARRA) wrote:
> >
> >> > Thanks that is good idea, of just adding adding a user and keeping the
> >> > Pi user id too.
> > Leaves a door for the hackers to come in.
> > Mick - W7CAT
> >
> > ----- Original Message -----
> > From: Marty Hartwell
> > To: RaspberryPi-4-HamRadio@groups.io
> > Sent: Tuesday, June 09, 2020 08:35:29 AM
> > Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info...
> >
> > > Hi
> > >
> > > Thanks that is good idea, of just adding adding a user and keeping the
> > > Pi user id too. I haven't
> > >
> > > used a windows PC for years on a regular basis, and also haven't been a
> > > system admin on Unix
> > >
> > > for over 20 years now and there have been a lot of changes in that
> > > amount of time. I do
> > >
> > > remember quite a lot though. I was just hoping there might be some
> > write
> > > up on some pitfalls
> > >
> > > to watch out for.
> > >
> > > Marty kd8bj
> > >
> > >
> > > On 6/8/20 5:09 PM, N5XMT wrote:
> > > > You would add a user.  Trying to change the name of a user will
> > > > possibly cause issues down the road with permissions. If you are
> > > > wanting to use it to replace a windows PC, I would suggest finding an
> > > > introductory Linux book to read to familiarize yourself a bit first.
> > > >
> > > > Get BlueMail for Android
> > > > On Jun 8, 2020, at 13:17, Marty Hartwell > > > wrote:
> > > >
> > > > Ok, good to know, I guess I should of known that but didn't even
> > > > consider it.
> > > >
> > > > The subject line I guess made me question.
> > > >
> > > > Thanks, I am thinking of replacing a laptop with one of the 8 GB
> > > > ones for the
> > > >
> > > > home PC.
> > > >
> > > > Does anyone know of a link to a description on how to change the
> > > > user id from pi
> > > >
> > > > to something else. I don't want to make it multi  user, just the
> > > > user so it looks more
> > > >
> > > > like my laptop currently does.
> > > >
> > > >
> > > > Marty
> > > >
> > > >
> > > > On 6/8/20 3:11 PM, N5XMT wrote:
> > > >> They are all 64 bit ones.  Even the 3B and 3B+ are 64 bit
> > > >> architecture
> > > >>
> > > >>
> > > >> On Mon, Jun 8, 2020 at 12:19 PM Marty Hartwell <
> > > >> mhartwe@... > wrote:
> > > >>
> > > >> Hi Joe
> > > >>
> > > >> Is it one of the 64bit ones?
> > > >>
> > > >>
> > > >> Marty kd8bj
> > > >>
> > > >> On 6/8/20 1:15 PM, Joe, KO8V wrote:
> > > >>> Just had one delivered today from CanaKit.
> > > >>>
> > > >>> --
> > > >>> 73
> > > >>> Joe, KO8V
> > > >>
> > > >
> > >
> > >
> > >
> > >
> > --
> > Untitled Document
> >
> >
> > 0
> >
>
>
>
>
--

 

0


Re: 8Gb RPI4 info.

Marty Hartwell
 

I guess I don't see how it is any more insecure, especially if one changes the

default password for the pi user as we are told to do. That plus having a decent

password should be as secure as if the user is left as pi.

Marty kd8bj


On 6/9/20 9:53 AM, Teton Amateur Radio Repeater Association (TARRA) wrote:

> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too.
Leaves a door for the hackers to come in.
Mick - W7CAT

----- Original Message -----
From: Marty Hartwell
To: RaspberryPi-4-HamRadio@groups.io
Sent: Tuesday, June 09, 2020 08:35:29 AM
Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info...

> Hi
>
> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too. I haven't
>
> used a windows PC for years on a regular basis, and also haven't been a
> system admin on Unix
>
> for over 20 years now and there have been a lot of changes in that
> amount of time. I do
>
> remember quite a lot though. I was just hoping there might be some write
> up on some pitfalls
>
> to watch out for.
>
> Marty kd8bj
>
>
> On 6/8/20 5:09 PM, N5XMT wrote:
> > You would add a user.  Trying to change the name of a user will
> > possibly cause issues down the road with permissions.  If you are
> > wanting to use it to replace a windows PC, I would suggest finding an
> > introductory Linux book to read to familiarize yourself a bit first.
> >
> > Get BlueMail for Android
> > On Jun 8, 2020, at 13:17, Marty Hartwell > > > wrote:
> >
> > Ok, good to know, I guess I should of known that but didn't even
> > consider it.
> >
> > The subject line I guess made me question.
> >
> > Thanks, I am thinking of replacing a laptop with one of the 8 GB
> > ones for the
> >
> > home PC.
> >
> > Does anyone know of a link to a description on how to change the
> > user id from pi
> >
> > to something else. I don't want to make it multi  user, just the
> > user so it looks more
> >
> > like my laptop currently does.
> >
> >
> > Marty
> >
> >
> > On 6/8/20 3:11 PM, N5XMT wrote:
> >> They are all 64 bit ones.  Even the 3B and 3B+ are 64 bit
> >> architecture
> >>
> >>
> >> On Mon, Jun 8, 2020 at 12:19 PM Marty Hartwell <
> >> mhartwe@... > wrote:
> >>
> >> Hi Joe
> >>
> >> Is it one of the 64bit ones?
> >>
> >>
> >> Marty kd8bj
> >>
> >> On 6/8/20 1:15 PM, Joe, KO8V wrote:
> >>> Just had one delivered today from CanaKit.
> >>>
> >>> --
> >>> 73
> >>> Joe, KO8V
> >>
> >
>
>
>
>
--

 
0


Re: 8Gb RPI4 info.

Teton Amateur Radio Repeater Association (TARRA)
 

> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too.
Leaves a door for the hackers to come in.

Mick - W7CAT

----- Original Message -----
From: Marty Hartwell
To: RaspberryPi-4-HamRadio@groups.io
Sent: Tuesday, June 09, 2020 08:35:29 AM
Subject: Re: [RaspberryPi-4-HamRadio] 8Gb RPI4 info...

> Hi
>
> Thanks that is good idea, of just adding adding a user and keeping the
> Pi user id too. I haven't
>
> used a windows PC for years on a regular basis, and also haven't been a
> system admin on Unix
>
> for over 20 years now and there have been a lot of changes in that
> amount of time. I do
>
> remember quite a lot though. I was just hoping there might be some write
> up on some pitfalls
>
> to watch out for.
>
> Marty kd8bj
>
>
> On 6/8/20 5:09 PM, N5XMT wrote:
> > You would add a user.  Trying to change the name of a user will
> > possibly cause issues down the road with permissions.  If you are
> > wanting to use it to replace a windows PC, I would suggest finding an
> > introductory Linux book to read to familiarize yourself a bit first.
> >
> > Get BlueMail for Android
> > On Jun 8, 2020, at 13:17, Marty Hartwell > > > wrote:
> >
> > Ok, good to know, I guess I should of known that but didn't even
> > consider it.
> >
> > The subject line I guess made me question.
> >
> > Thanks, I am thinking of replacing a laptop with one of the 8 GB
> > ones for the
> >
> > home PC.
> >
> > Does anyone know of a link to a description on how to change the
> > user id from pi
> >
> > to something else. I don't want to make it multi  user, just the
> > user so it looks more
> >
> > like my laptop currently does.
> >
> >
> > Marty
> >
> >
> > On 6/8/20 3:11 PM, N5XMT wrote:
> >> They are all 64 bit ones.  Even the 3B and 3B+ are 64 bit
> >> architecture
> >>
> >>
> >> On Mon, Jun 8, 2020 at 12:19 PM Marty Hartwell <
> >> mhartwe@... > wrote:
> >>
> >> Hi Joe
> >>
> >> Is it one of the 64bit ones?
> >>
> >>
> >> Marty kd8bj
> >>
> >> On 6/8/20 1:15 PM, Joe, KO8V wrote:
> >>> Just had one delivered today from CanaKit.
> >>>
> >>> --
> >>> 73
> >>> Joe, KO8V
> >>
> >
>
>
>
>
--

 

0


Re: 8Gb RPI4 info...

Marty Hartwell
 

Hi

Thanks that is good idea, of just adding adding a user and keeping the Pi user id too. I haven't

used a windows PC for years on a regular basis, and also haven't been a system admin on Unix

for over 20 years now and there have been a lot of changes in that amount of time. I do

remember quite a lot though. I was just hoping there might be some write up on some pitfalls

to watch out for.

Marty kd8bj


On 6/8/20 5:09 PM, N5XMT wrote:
You would add a user.  Trying to change the name of a user will possibly cause issues down the road with permissions.  If you are wanting to use it to replace a windows PC, I would suggest finding an introductory Linux book to read to familiarize yourself a bit first. 

On Jun 8, 2020, at 13:17, Marty Hartwell <mhartwe@...> wrote:

Ok, good to know, I guess I should of known that but didn't even consider it.

The subject line I guess made me question.

Thanks, I am thinking of replacing a laptop with one of the 8 GB ones for the

home PC.

Does anyone know of a link to a description on how to change the user id from pi

to something else. I don't want to make it multi  user, just the user so it looks more

like my laptop currently does.


Marty


On 6/8/20 3:11 PM, N5XMT wrote:
They are all 64 bit ones.  Even the 3B and 3B+ are 64 bit architecture


On Mon, Jun 8, 2020 at 12:19 PM Marty Hartwell < mhartwe@...> wrote:

Hi Joe

Is it one of the 64bit ones?


Marty kd8bj

On 6/8/20 1:15 PM, Joe, KO8V wrote:
Just had one delivered today from CanaKit.

--
73
Joe, KO8V


Re: 8Gb RPI4 info...

Lawrence Macionski
 
Edited

Dave-
your comment "it doesn’t matter which OS, Windows/XP, 7 or 10, or a host of light weight Linux systems. All are equally slow)" Is there better? some RISC or perhaps obscure "Solaris"?   Don't get me wrong, to me the O/S is like going to a restaurant. You get to choose, tables, dine in or carry out. eat on the patio, Punch the chef in the nose. you can do plenty before you even sit or order..To get to the meat and potatoes--- the program.. and the speed you get it. depends on if it's been compiled and how good that is, or natively written in machine code, and just how many people do that these days. Not I since the 6502 days...

So given any O/S once you select the program... it runs at some speed dependent on if it's using an interperator, or how good the complier is, or if someone actually wrote it in machine language. even then how many "calls" are being made to the O/S or drivers, and so on. Then on top of all of that, what overhead is going on.....An O/S does not necessarly determine speed of a "job" or the program. Speed is determined on many factors such as the number of processes running, cache, DMA's,  interrupts, swap space,  and who the programmer was and how he attacked and solved the programming task.

That's why the lowly ARDUINO works as well as it does, there is no O/S only machine language code running. Now it still can be tweaked by the quality of the compiler, and the programmers ability. to write the coding structure for efficient execution.

Back in the day of my 1st programming class at Henry Ford College maybe 1968, the instructor gave us a programming problem an engineering drawing of a block with various holes drilled in it. We were given a 2x4x4 piece of wood and loaded it into a NC drill press and ran our paper tape. You passed if you drilled the holes, right number in the right place, at the right depth...The instructor had a go-no go gauge that verified location and depth of holes. That was Pass-FAIL. Go-no GO. If Go,Your grade was determined by the instructor pinning the paper tape to the wall and who had the shortest paper tape..got the highest grade..  One gal had a paper tape twice as long as everyone else but by the GO-NO go  guage she passed. She had no idea as to how to be productive.  

So to me the O/s is an evil necessity in order to load, execute, move, copy, delete or save a program. Some early O/S's like CP/M and DOS batch, that's about all you could do.. old guys well know the program pip...