Fedora Hardware :: Prolific Pl2303 + Serial Modem - Dials But PPP Won't Authenticate
Apr 7, 2010
Background info
1) Compaq laptop, legacy free (no COM or LPT ports, USB only)
2) The laptop owner has dial-up and can't get broadband right now.
3) The laptop is running F12 with the PAE kernel.
4) Internal modem is a Conexant modem masquerading as Intel ICHxxx chipset. All attempts at getting a driver to work for this so far have failed.
5) I downloaded a Linuxant RPM but this failed to work.
So my only option that will get the computer back to its owner is an external modem using a Prolific PL2303 USB to SERIAL adaptor cable. When using the PL2303 cable my external modem appears as /dev/ttyUSB0 For the most part this works fine. I used the steps in the solution from the following thread
[URL]
The only problem I have is getting PPP to work THROUGH the cable. I have verified the cable is the issue. HOW?
1) I have tested all the modems on another machine with F12 through the onboard COM port. All modems dial, connect, then authenticate and maintain connection until I manually disconnect.
2) I have tested all modems used on the other machine with the PL2303 and can replicate the problem on that machine.
3) I have used more than one PL2303 cable and get the same behaviour.
Using the network configuration utility / wvdial / modem lights OR kppp produces the same results when controlling the modem located at /dev/ttyUSB0 So do I
1) have to make some configuration changes to relating to /dev/ttyUSB0
OR
2) is the something in ppp that needs configuring
OR
3) is it something else altogether that I am not aware of?
I am using a Prolific pl2303 USB<=>Serial adapter. dmesg reports everything seems ok when I plug it in (see below) but when I open the ttyUSB0 port in minicom, it is always offline and nothing works. Also, minicom reports:
[code]....
If I plug the adapter into a different machine (Windows) everything works fine. The serial port is setup correctly (9600-8-N-1) What can I do to get this working?
usb 5-2: new full speed USB device using uhci_hcd and address 3 usb 5-2: configuration #1 chosen from 1 choice pl2303 5-2:1.0: pl2303 converter detected usb 5-2: pl2303 converter now attached to ttyUSB0 usb 5-2: New USB device found, idVendor=067b, idProduct=2303 [Code]....
I have bought a so-called web'n'walk stick, which identifies itself as a "Globetrotter HSDPA Model". I managed to get it identified as a serial device (initially, it is detected as a USB drive), but I fail to get it working.
Friend's laptop:NEC Versa E20001500 Mhz processor256 memoryDick Smith Electronics external serial modemDick Smith USB to serial adaptorIt had a Windows failure which couldn't be recovered, so I'm putting Linux onto it for her, probably Pclinuxos Gnome, or maybe Suse 11.2 Gnome. Both recommended to me by a Linux user friend for this machine.
Is it better to use a Usb to Serial Adapter Cable or a PCI Serial Port Card when attaching a serial port modem to a computer that doesn't provide onboard serial ports?I am leaning toward the USB to Serial Cable but do they work as well as a Serial Port Card? I have a US Robotics business class external serial modem that that I'd like to keep using for dialup internet connections.Here are the devices I am thinking of using:
USB To Serial Cable: KINAMAX CB-RS232 (Prolific Chipset) PCI Adapter Card: SYBA SD-PCI 15024 --single port chipset=SB16C1052PC1
on my server (fax server)with Cento O.S 5.2 final kernel 2.6.18-92.el5 the external serial modem 56k us robotic is not recognized.Kudzu not notes the modem.PS .On the same server ,same modem ,same serial but with Centos 4.5 ,this as regular detect.
Right now I am using some software to emulate a null modem serial cable on my Windows computer connected to itself. For development purposes I need to have a null modem connection to a linux computer from a windows host. Is there any method of doing this virtually?
I love to use opera & especially like the speed-dials.. the file I need to edit is 'standard_speeddial.ini' however I do not have enough access & have no idea how to get it (& I have tried as well).
I am trying to get two way serial communications going between a Windows XP system and a Linux system (RHEL 5).I have /sbin/agetty -L 9600 ttyS0
in /etc/inittab. I am using a generic USB to serial adaptor on Windows (Unitek) and a null modem cable. I have putty configured for 9600 baud, 8 bits, no parity, one stop bit, no flow control.I get the login prompt from agetty in the putty window but input does not work; I see weird characters in the putty screen. I can echo output into the device from windows and see it, but
cat < /dev/ttyS0. just prints out weird characters from what I type.
On my CentOS 5.2 install I've installed a dual-port serial card based on the NetMOS 9835 chipset. I've followed the serial instructions, but everything they tell me to do is already done - see setserial outputs below. I've compared these values to the lspci output (below, NetMos card is at the bottom of the output) for the card and it appears right. Problem being, I can't use the serial ports. Oh and I did use search, and looked at every 9835-related article before posting this :)
I am hoping to be able to get an old serial-touchscreen to work with a usb/serial adapter. I had this touchscreen working some years ago on different hardware. I would like to hook it to the machine I am setting up as a multimedia host with mythtv among other things.
Following the instructions I left behind when I got this to work way back when does not work. See [URL] ....
This info is a work around to get the xserver to see the touchscreen. [URL] ....
I do know that the touchscreen works as I am able to get garbage on the screen as in the first part of my howto. But I have not had any success getting xorg to see it. I wish I had posted a copy of the xorg.conf at the time, but......
There is an issue with the current xserver in testing that I am hoping the next update (in unstable) will fix when it gets pushed to testing. That is that Code: Select all# X -configure fails with a segfault. So I am not able to generate the xorg.conf needed to get it to work. I was going to post a bugreport, that is when I found out there is an update in unstable, so I am waiting for it to get pushed at the moment.
Anyway I am hoping that I can link /dev/ttyUSB0 to /dev/tty0 and get it to work. I would like some kind of guess as to my chances of success before I go to all the work of getting the monitor hooked to the host.
I have a bit of a dilemma. I'm attempting to use a microcontroller to send MIDI messages over a virtual serial port. I want to (eventually) read them with Mixxx. I'm using an FTDI chip, so I get a /dev/ttyUSB0. I've tried spikenzielabs' Serial-Midi program, but it doesn't see any serial ports. NOTEMIDI looks really old and won't compile on my 10.04 LTS machine.
We have a new machine with RedHat enterprise 5 on it. I need to connect a serial cable to the serial port and talk to another system (old alpha system) instead of using a VT connected to the alpha.Does RedHat come with anything like Keaterm/hyperterm/etc etc?
I believe I have everything but this setup, as when I use my Outlook's Test Account Setting, it's able to do the following: 1) Send a test e-mail 2) Connect to POP3 3) See the actual test e-mail at /var/spool/mail/<username>
However, the Test Account Setting wasn't able to authenticate to POP3. I then do the following: 1) Start up Command Prompt. 2) Execute "telnet <server IP> 110". It gives me "+OK Dovecot ready". 3) Type "user <username>" 4) Type "pass <password>". It gives me "-ERR Authentication failed".
Then I searched around and found this. However, I'm not sure if I am able to make any sense out of it.
My CentOS 5.5 is setup with the following standard files: /etc/passwd (password field contains the character "x") /etc/shadow (examining this reveals it's using MD5 has as the password field begins with $1$)
So how should I set my /etc/dovecot.conf? I think it's this file I need to setup to enable POP3 authentication?
I installed netatalk for Linux in Fedora 10. I managed to get the service starting correctly at every boot and from Linux side everything looks good. I even manged to tweak avahi-daemon to advertise my server on the network so would show in Finder sidebar (with a snazy tux icon). But when I try to connect to the server it asks me for username and password (as it should), but my password doesn't work. I changed my password, I even gave it a simple one to rule out possibility of "fat-finger"-ing. No success. I tried many options in my afpd.conf file. Here is the latest code...
fedora 10 and im trying to set up some user accounts on a computer. My current problem is that we set up 2 root accounts and we need both to be able to authenticate. So far this works on the command line but whenever i'm on the GUI it seems that it only allows root to give its password for things. How do i enable the second account to do that as well.as a note, i am doing this for someone else so i have little to no control how this is set up, so please, i am not looking for reasons why this is not a good idea i would just like to figure this out
Previously I have a hard disk running OpenSUSE partitioned as follows: Code: /dev/sda1 = swap /dev/sda2 = / /dev/sda3 = /home
I redid the default partitioning scheme that Fedora tries to use (no LVM crap). Basically told it to make the above layout and to format swap and slash, but NOT to format /home because I want that data. I had it go ahead and install grub on the MBR of this HD as well. The install seems to have went ok and it rebooted. That is when the first problem comes up. I never see grub. I just get a black screen then a bar at the bottom that progressively turns blue, which I assume is Fedora loading.
This is all well and good, then it gets to the login screen (GDM) and I try to log in as root and it tells me "can't authenticate user" hangs for a bit, then goes back to the log in box. I try to get a virtual console (Ctrl+Alt+F#) and nothing. So I guess I have 3 problems in order of significance: - Why no grub? - Why no virtual console? - Why root can't log in?
Normally I would edit kernel option line at the grub prompt to boot into single user mode and fix the problem, but can't. I was able to use the "rescue mode" on the Fedora DVD to accomplish this, but have not had a chance to figure things out any further. I don't think having a /home created by another OS would prevent root from logging in since root "home dir" is /root.
I can't get my Broadcoam BCM4322 to connect to a protected access point. I've tried the drivers from rpmfusion, and tried to build the module with the source+binary package from Broadcom, all with no luck. The failure seems to happen during the WPA negotiation.
I haven't tried connecting to an unsecured WiFi access point.
When booting this same laptop to Kubuntu 9.04, it can connect to secured, so it is possible under linux.
Here's output from lspci, and the tail of the log while KNetworkManager is trying to connect the device.
I cannot authenticate on my wireless network. it keeps asking me the WPA key (which I correctly enter everytime it asks me to). I COULD do that before rebooting. Now I can't. Nice. What can I do? I've read somewhere that in the RC there where problems with the network applet I don't know what... can this be reconducted to that?
I had an older fedora box (I think it was Core 3) that acted as my file server in my small network (4). It worked fine when I had all XP clients connecting to it. Recently we decided to get all new computers. So now I have a fedora 10 box acting as my file/print server and all Vista Home premium computers as the clients. For the life of me I can not get samba to work. When I try to map the network drives on windows it will not let me authenticate. I install swat and try it that way, still no luck. Here is a copy of my smb.conf file:
Code: # Samba config file created using SWAT # from UNKNOWN # Date: 2009/05/19 21:47:31
[global] workgroup = AIVILANET server string = Bighat Samba Server interfaces = eth0 null passwords = Yes smb passwd file = /etc/samba/smbpasswd passdb backend = tdbsam username map = /etc/samba/smbusers syslog only = Yes announce version = 5.0 name resolve order = hosts wins bcast socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192 printcap name = CUPS wins support = Yes
[HP-LaserJet-1200] comment = HP LaserJet 1200 path = /var/spool/samba read only = No printable = Yes printer name = HP-LaserJet-1200 oplocks = No share modes = No
[printers] comment = All Printers path = /var/spool/samba printable = Yes browseable = No
[home] path = /home/savona/ username = savona valid users = @Users admin users = savona write list = savona force user = savona force group = savona read only = No hosts allow = 10.0.0.2
Can anyone one give me some pointers please, for talking to a serial port, if I use cutecom it always returns "could not open /dev /tty0 or 1 or 3 or 4, even tried ttys0 etc
after installing the OS my mouse was not working. After searching in net for a day, I made it working. Shall give the details hereIf its a repeat thread please ignore it.1. Go to Terminal.2. Login as root.3. su -c 'yum install -y system-config-display'This step will take some 2 to 5 mins 4. su -c 'system-config-display --reconfig'After Fedora 9/10, the xorg.conf is not available and it uses HAL to detect the hardwares. The above steps create the config file.
5. su -c 'cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bak' back up 6. su - -c 'gedit /etc/X11/xorg.conf'
My program tries to open serial port on Fedora 12, and shows "Access denied" on Open Port operation. The same program runs successfully with root rights. What can I do to get COM port access as regular user?
I think I need to mount a serial device, but not sure how. I looked at /etc/fstab, but cannot determine what to put in for the mount type. And, not sure what port it would be exactly... imagine either "ttyS0" or "tty0". Can someone give a newbie some guidance on how to possibly mount this device?
i was using a serial console program (not minicom) two weeks back but took a break and have no idea what it is! man, it was awesome, too. it had a nice gui, similar to hyperterminal...and from what i think i remember it came packaged with f14.
