problems adding a new printer to HP Device Manager

[Robert Moskowitz]

I just set up an HP 9125e ink jet.  What a job.  The tools expect dumb 
networks and it took me hours to figure out how to get things setup.

But it is done now.  I got through their Android setup program and got 
the printer's ethernet working as I want.

On my F41 system with Xfce, I have the printer showing in Printer Setup 
and can print to it.

But I cannot get HP Device Manager to find the thing.

I tried both the DNS name I have for it and the direct IPv4.

Any tips?

thanks

[Will McDonald]

On Mon, 31 Mar 2025 at 03:01, Robert Moskowitz  wrote:
> I just set up an HP 9125e ink jet.
> On my F41 system with Xfce, I have the printer showing in Printer Setup
> and can print to it.
> But I cannot get HP Device Manager to find the thing.
> I tried both the DNS name I have for it and the direct IPv4.

Are you sure you mean HP Device Manager? That looks like a piece of
software for thin client management? (
https://h30670.www3.hp.com/portal/swdepot/displayProductInfo.do?productNumbe...
)

What's the package name & version? Where did it come from and how was it
installed?

Regardless, do you have a firewall enabled? If you *temporarily* disable
it, does the situation change?

Is there anything in the systemd journal, or any logs used by whatever HP
Device Manager is? (Identify the process ID(s) then lsof to see if it's
holding any interesting looking files open.)

[Robert Moskowitz]

On 3/31/25 3:32 AM, Will McDonald wrote:
> On Mon, 31 Mar 2025 at 03:01, Robert Moskowitz  
> wrote:
> I just set up an HP 9125e ink jet.
> On my F41 system with Xfce, I have the printer showing in Printer
> Setup
> and can print to it.
> But I cannot get HP Device Manager to find the thing.
> I tried both the DNS name I have for it and the direct IPv4. 
>
>
> Are you sure you mean HP Device Manager? That looks like a piece of 
> software for thin client management? 
> (https://h30670.www3.hp.com/portal/swdepot/displayProductInfo.do?productNumbe...)

HP Device Manager gets installed by something when I set up my system.  
It uses HPLIB.  It is great for interfacing with XANE? for the scanning 
functions.  I probably use it more for the scanning than anything else.
> What's the package name & version? Where did it come from and how was 
> it installed?

About says HPLIB ver 3.24.4
and Device Manager Version 15.0(Qt4)
> Regardless, do you have a firewall enabled? If you *temporarily* 
> disable it, does the situation change?

I was thinking that this morning and something I will try soonish.
> Is there anything in the systemd journal, or any logs used by whatever 
> HP Device Manager is? (Identify the process ID(s) then lsof to see if 
> it's holding any interesting looking files open.)

Grumble.  I get into systemd journal once a year, it seems, and 
everytime it is a whole research project to figure out how to find what 
I want.  Well try firewall first.

thanks

[Ger van Dijck]

Hi Robert,

Install root-net-bonjour. run hp-get <ipnumber> :Warnings HP printer is 
not  hplip installed , and /.hplib/hplib.conf could not access file.

# (sudo) hp-check

hp-tool (box)

hp-plugin

hp-get <ipnumber>

Succes,

Ger van Dijck.

On 31-3-2025 14:31, Robert Moskowitz wrote:
> On 3/31/25 3:32 AM, Will McDonald wrote:
> > On Mon, 31 Mar 2025 at 03:01, Robert Moskowitz  
> > wrote:
> > I just set up an HP 9125e ink jet.
> > On my F41 system with Xfce, I have the printer showing in Printer
> > Setup
> > and can print to it.
> > But I cannot get HP Device Manager to find the thing.
> > I tried both the DNS name I have for it and the direct IPv4. 
> >
> >
> > Are you sure you mean HP Device Manager? That looks like a piece of 
> > software for thin client management? 
> > (https://h30670.www3.hp.com/portal/swdepot/displayProductInfo.do?productNumbe...)
>
> HP Device Manager gets installed by something when I set up my 
> system.  It uses HPLIB.  It is great for interfacing with XANE? for 
> the scanning functions.  I probably use it more for the scanning than 
> anything else.
> > What's the package name & version? Where did it come from and how was 
> > it installed?
>
> About says HPLIB ver 3.24.4
> and Device Manager Version 15.0(Qt4)
> > Regardless, do you have a firewall enabled? If you *temporarily* 
> > disable it, does the situation change?
>
> I was thinking that this morning and something I will try soonish.
> > Is there anything in the systemd journal, or any logs used by 
> > whatever HP Device Manager is? (Identify the process ID(s) then lsof 
> > to see if it's holding any interesting looking files open.)
>
> Grumble.  I get into systemd journal once a year, it seems, and 
> everytime it is a whole research project to figure out how to find 
> what I want.  Well try firewall first.
>
> thanks

[Robert Moskowitz]

Well disabling firewalld did not help, so,...

On 3/31/25 11:48 AM, Ger van Dijck wrote:
> Hi Robert,
>
> Install root-net-bonjour.

dnf install root-net-bonjour
Updating and loading repositories:
...
Repositories loaded.
Failed to resolve the transaction:
No match for argument: root-net-bonjour
You can try to add to command line:
   --skip-unavailable to skip unavailable packages
> run hp-get <ipnumber> :Warnings HP printer is not  hplip installed , 
> and /.hplib/hplib.conf could not access file.
>
> # (sudo) hp-check
>
> hp-tool (box)
>
> hp-plugin
>
> hp-get <ipnumber>
>
> Succes,
>
> Ger van Dijck.
>
> On 31-3-2025 14:31, Robert Moskowitz wrote:
> > On 3/31/25 3:32 AM, Will McDonald wrote:
> > > On Mon, 31 Mar 2025 at 03:01, Robert Moskowitz  
> > > wrote:
> > > I just set up an HP 9125e ink jet.
> > > On my F41 system with Xfce, I have the printer showing in
> > > Printer Setup
> > > and can print to it.
> > > But I cannot get HP Device Manager to find the thing.
> > > I tried both the DNS name I have for it and the direct IPv4. 
> > >
> > >
> > > Are you sure you mean HP Device Manager? That looks like a piece of 
> > > software for thin client management? 
> > > (https://h30670.www3.hp.com/portal/swdepot/displayProductInfo.do?productNumbe...)
> >
> > HP Device Manager gets installed by something when I set up my 
> > system.  It uses HPLIB.  It is great for interfacing with XANE? for 
> > the scanning functions.  I probably use it more for the scanning than 
> > anything else.
> > > What's the package name & version? Where did it come from and how 
> > > was it installed?
> >
> > About says HPLIB ver 3.24.4
> > and Device Manager Version 15.0(Qt4)
> > > Regardless, do you have a firewall enabled? If you *temporarily* 
> > > disable it, does the situation change?
> >
> > I was thinking that this morning and something I will try soonish.
> > > Is there anything in the systemd journal, or any logs used by 
> > > whatever HP Device Manager is? (Identify the process ID(s) then lsof 
> > > to see if it's holding any interesting looking files open.)
> >
> > Grumble.  I get into systemd journal once a year, it seems, and 
> > everytime it is a whole research project to figure out how to find 
> > what I want.  Well try firewall first.
> >
> > thanks

[Tim]

On Mon, 2025-03-31 at 08:32 +0100, Will McDonald wrote:
> do you have a firewall enabled? If you *temporarily* disable it,
> does the situation change?

That's something I'd *never* do outside of a LAN.  A temporary firewall
drop is all it takes to compromise you in whatever way the firewall was
protecting you.

I've mentioned this before, but it only took 13 seconds of being
connected to the internet to watch a friend's PC get compromised in
such a way that a wipe and reinstall was the only fix.  His anti-virus
software merely informed him that something had been done, didn't
prevent it, and couldn't change a protected system file to fix it (even
though the malware was able to).  And it happened 3 times in a row
because he wouldn't listen to me about firewalling.

Pah!  A pox on that so-called protective software!  And it was a well-
regarded one, too (at that time).

[Jeffrey Walton]

On Mon, Mar 31, 2025 at 9:56 PM Tim via users
 wrote:
> On Mon, 2025-03-31 at 08:32 +0100, Will McDonald wrote:
> > do you have a firewall enabled? If you *temporarily* disable it,
> > does the situation change?
>
> That's something I'd *never* do outside of a LAN.  A temporary firewall
> drop is all it takes to compromise you in whatever way the firewall was
> protecting you.
>
> I've mentioned this before, but it only took 13 seconds of being
> connected to the internet to watch a friend's PC get compromised in
> such a way that a wipe and reinstall was the only fix.  His anti-virus
> software merely informed him that something had been done, didn't
> prevent it, and couldn't change a protected system file to fix it (even
> though the malware was able to).  And it happened 3 times in a row
> because he wouldn't listen to me about firewalling.

Sounds like a Windows machine.
> Pah!  A pox on that so-called protective software!  And it was a well-
> regarded one, too (at that time).

Jeff

[Tim]

On Mon, 2025-03-31 at 22:08 -0400, Jeffrey Walton wrote:
> Sounds like a Windows machine.

Smelt like one, too.  Though the point still stands.

While Linux, itself, is much vaunted as being about as safe as you can
get on the net, it will depend on how you configure it and the software
you run on it (blogging software, for instance, is quite vulnerable as
its often set up badly, and often difficult to get it working with good
security settings).  And I'm not sure if the original poster is using
different OSs (at either end of the equation).

If your firewall is the only thing keeping you safe, do not drop it. 
You should only ever carefully poke holes through it for specific
purposes.

If you've think that you've got everything else safely set up, and the
firewall is just for added protection, then proceed at your own risk.