• Re: Printer support?

    From gareth evans@3:770/3 to The Natural Philosopher on Fri Mar 11 17:02:18 2022
    On 11/03/2022 15:03, NY wrote:
    "gareth evans" <headstone255@yahoo.com> wrote in message news:t0flu7$o1k$1@dont-email.me...
    Before I (finally) get around to commissioning any of my
    RPis, 1, 2, 3 & 4 (Yes, really. All in untouched in their
    original boxes!) to replace my ageing Microsoft-programmed
    laptop, does Raspbian have support for network printers, in
    my case an Epson WF-2510?

    I am increasingly dis-chuffed by Microsoft software and
    wish to be Linuxised, having used Linux in a number of
    employments.

    It certainly has support for network-connected printers. It
    automatically found my HP Laserjet 283 (once I'd told it I was connected
    by LAN rather than USB) and even found the correct driver for ir. You
    should be OK with an Epson printer.

    This is using Raspbian on a Pi3 and a Pi4. Is there a list within
    Raspbian (and other flavours of Unix) of the printers that are
    supported? I suppose there must be for CUPS (printing service) to offer
    a drop-down list of printers when you set one up manually if the auto-detection fails.

    On 11/03/2022 16:32, The Natural Philosopher wrote:

    https://www.openprinting.org/printer/Epson/Epson-WF-2510_Series

    "works perfectly"


    Thank-you both gentlemen.

    As it happens, I was on the verge recently of unpacking the
    RPi400 that I got last June 2021, and had cleared a space for it,
    when unexpectedly an Eddystone EA12 communications receiver became
    available just for the asking and it is now sitting in that
    cleared space whilst I find somewhere else to put it! :-)

    (I am a Radio Ham in addition to other interests)

    I have been studying the ARMv8 instruction set, off and on, for
    some months now in anticipation of an assembly language project
    that had its genesis nearly 50 years ago when working for the
    CEGB in Portishead

    --- SoupGate-Win32 v1.05
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)
  • From The Natural Philosopher@3:770/3 to gareth evans on Fri Mar 11 16:32:20 2022
    On 11/03/2022 14:21, gareth evans wrote:
    Epson WF-2510

    https://www.openprinting.org/printer/Epson/Epson-WF-2510_Series

    "works perfectly"

    --
    Canada is all right really, though not for the whole weekend.

    "Saki"

    --- SoupGate-Win32 v1.05
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)
  • From A. Dumas@3:770/3 to All on Wed Mar 16 11:41:24 2022
    On 16-03-2022 11:32, NY wrote:
    "The Natural Philosopher" <tnp@invalid.invalid> wrote:
    Adding a second IP address to an Ethernet port is trivial, especially
    if you don't want it to persist after a reboot.

    It used to be something like (sudo) ifconfig eth0:1 192.168.20.27/24 up

    I think today its more like (sudo) ip addr add 192.168.20.27/24 dev eth0

    Anyway this allows you to add a (static) address temporarily to the
    same network the offending device is on, and use a browser to talk to it

    Well I never knew that. Does it just configure the OS to listen for *incoming* connections on the temporary IP? Does traffic from the PC to
    an external device just get sent with the permanent IP, except in the
    special case where it is in response to incoming traffic addressed to
    the temporary IP? In other words, is Unix applying a bit on intelligence here?

    Depends on the mask. The two interfaces/networks are completely
    equivalent but they can't have overlapping "IP masks" or "DNS masks".
    The network software knows where to route and what address to use by
    checking the address and seeing in which mask it fits. Hence the "/24"
    which means it's a network where the first three parts of the IPv4
    address are always the same, because 3x 8 = 24 (because one part takes
    up 8 bits).

    There may be subtleties wrong with this explanation but that's the gist.

    --- SoupGate-Win32 v1.05
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)
  • From NY@3:770/3 to The Natural Philosopher on Wed Mar 16 10:32:12 2022
    "The Natural Philosopher" <tnp@invalid.invalid> wrote in message news:t0pobr$hkm$1@dont-email.me...
    On 14/03/2022 09:49, NY wrote:
    About the only time I've needed to set a static IP is when configuring a
    device such as a security camera which comes pre-configured to use
    192.168.10.1, when my router uses 192.168.1.x, so I need to find spare
    network switch, connect just the camera and my PC (which I give a static
    IP 192.168.10.2), access the camera's web interface to change its IP to
    "use DHCP", likewise for my PC, and then connect everything back to the
    router. Tedious, but there's no way round it.

    Actually, with Linux (And Unix) , there absolutely *is*.

    Adding a second IP address to an Ethernet port is trivial, especially if
    you don't want it to persist after a reboot.

    It used to be something like (sudo) ifconfig eth0:1 192.168.20.27/24 up

    I think today its more like (sudo) ip addr add 192.168.20.27/24 dev eth0

    Anyway this allows you to add a (static) address temporarily to the same network the offending device is on, and use a browser to talk to it

    Well I never knew that. Does it just configure the OS to listen for
    *incoming* connections on the temporary IP? Does traffic from the PC to an external device just get sent with the permanent IP, except in the special
    case where it is in response to incoming traffic addressed to the temporary
    IP? In other words, is Unix applying a bit on intelligence here?

    --- SoupGate-Win32 v1.05
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)