I have a SIM LTE modem that use "pon" to connect. This pon use a chat script that send the AT commands needed to connect. when I try to start the ppp service, the AT commands all fail by timeout:

pi@raspberrypi:~ $ sudo pon
pppd options in effect:
debug           # (from /etc/ppp/peers/provider)
updetach                # (from /etc/ppp/peers/provider)
persist         # (from /etc/ppp/peers/provider)
dump            # (from /etc/ppp/peers/provider)
noauth          # (from /etc/ppp/peers/provider)
remotename 3gppp                # (from /etc/ppp/peers/provider)
/dev/ttyUSB3            # (from /etc/ppp/peers/provider)
115200          # (from /etc/ppp/peers/provider)
lock            # (from /etc/ppp/peers/provider)
connect chat -s -v -f /etc/chatscripts/chat-connect -T internet.x              # (from /etc/ppp/peers/provider)
disconnect chat -s -v -f /etc/chatscripts/chat-disconnect               # (from /etc/ppp/peers/provider)
nocrtscts               # (from /etc/ppp/peers/provider)
modem           # (from /etc/ppp/peers/provider)
asyncmap 0              # (from /etc/ppp/options)
lcp-echo-failure 4              # (from /etc/ppp/options)
lcp-echo-interval 30            # (from /etc/ppp/options)
hide-password           # (from /etc/ppp/peers/provider)
novj            # (from /etc/ppp/peers/provider)
novjccomp               # (from /etc/ppp/peers/provider)
ipcp-accept-local               # (from /etc/ppp/peers/provider)
ipcp-accept-remote              # (from /etc/ppp/peers/provider)
ipparam 3gppp           # (from /etc/ppp/peers/provider)
noipdefault             # (from /etc/ppp/peers/provider)
ipcp-max-failure 30             # (from /etc/ppp/peers/provider)
defaultroute            # (from /etc/ppp/peers/provider)
usepeerdns              # (from /etc/ppp/peers/provider)
noccp           # (from /etc/ppp/peers/provider)
noipx           # (from /etc/ppp/options)
abort on (BUSY)
abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (NO ANSWER)
timeout set to 30 seconds
send (AT^M)
expect (OK)
^M
alarm
Failed
Script chat -s -v -f /etc/chatscripts/chat-connect -T internet.x finished (pid 2017), status = 0x3

Now, If I run all the commands that are preset in the **/etc/chatscripts/chat-connect** script using minicom, the answer for those commands are instant:

pi@raspberrypi:~ $ sudo minicom -D /dev/ttyUSB3 -b 115200

Welcome to minicom 2.8

OPTIONS: I18n
Port /dev/ttyUSB3, 16:08:09

Press CTRL-A Z for help on special keys

AT

OK
ATE0

OK
AT+CPIN?

+CPIN: READY

OK
AT+CSQ

+CSQ: 16,99

OK
AT+CREG?

+CREG: 0,5

OK
AT+CGREG?

+CGREG: 0,5

OK
AT+COPS?

+COPS: 0,0,"XXX",0

OK
AT+CGDCONT=1,"IP","internet.x",,0,0

OK
ATD*99#

CONNECT 150000000

There are no delays, no waits. The OK are received instantly. Not sure what is happening. I still don't see the ppp0 connection with ifconfig tho.

Trying to make a basic irc bot in python (3.9.2) that can response specific commands when invoked. It works although when a response contains whitespace or a space, only the first word gets displayed by the bot, for example;

me > @hello
bot > hi
me > @how is the weather?
bot > the

it was supposed to say, the weather seems nice today Here's the code

import sys
import time
import socket
import string

server_address="irc.libera.chat"
server_port = 6667

botnick="lamebot"
channel_name="##megadouched"

irc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
irc.connect((server_address,server_port))
irc.setblocking(False)
time.sleep(1)

irc.send(bytes("USER "+botnick+" "+botnick+" "+botnick+" bot has joined the chat\r\n", "UTF-8"))

time.sleep(1)

irc.send(bytes("NICK "+botnick+"\n", "UTF-8"))
time.sleep(1)

irc.send(bytes("JOIN "+channel_name+"\n", "UTF-8"))

irc_privmsg = 'b"PRIVMSG "+channel_name+" Hello\r\n"'

while True:
    try:
        text = irc.recv(4096)
    except Exception:
        pass
    if text.find(bytes(":@hi", "UTF-8"))!=-1:
        irc.sendall(bytes("PRIVMSG "+channel_name+" Hello\r\n", "UTF-8"))
        text=b""
    elif text.find(bytes(":@how is the weather?", "UTF-8"))!=-1:
        irc.sendall(bytes("PRIVMSG "+channel_name+" the weather today seems nice\r\n", "UTF-8"))
        text=b""

input()

I'm making a Wireless-to-3g router with openwrt, and its working pretty well. To bring the 3g-wan interface up, I have to first register the USB modem using the command: gcom -d /dev/ttyUSB0 If I don't do this, chat will fail to establish connection with modem not registered errors. **My question**: Is there an option similar to pre-upon Debian to execute things before bringing an interface up, and only bring this up after successfully reaching this condition? Why? Because putting the gcom command on /etc/rc.local seems not to work, and it isn´t elegant. My current wan interface configuration: config interface 'wan' # === Conexão com a 3G da tim # option ifname ppp0 option ifname 3g-wan option username tim option password tim option pincode XXXX option proto 3g option service umts option device /dev/ttyUSB0 option dialnumber '*99***1#' option apn tim.br This solution must have an out-of-the-box experience because, after configured we deliver those boxes to users to create "remote offices" on distant places.

Is the source code of chat program (used for dialog with modem) open? If it is so, where can I find it? I've been trying find it, but no success.

I've checked their man pages, but I'm still confused. I just know they are all related to ppp connections. I'm surprised that when I googled "pon wvdial relationship", I get no useful results, so I ask this question here. Who can tell me the role of these three tools? I still feel they do the same thing... and... I find that a new tool - pon.wvdial has come out, and what is it? I'm really confused with these tools...

On my router which runs OpenWRT I need a script which will keep a SSH connection alive mostly all the time (small breaks are OK). As the SSH server which I want to connect to takes care of multiple connections from the same user, it is enough if I put the script to cron config file. There are two problems: * Installing stuff is not easy there (very limited space, many packages need to be compiled by me before I even try if it works). * The server to which I want to connect does not respect RSA keys. As my router uses [dropbear](http://linux.die.net/man/1/dbclient) , I tried the following strategies: - defining DROPBEAR_PASSWORD - defining SSH_ASKPASS_ALWAYS and SSH_ASKPASS - definig SSH_ASKPASS and DISPLAY - small [chat](http://linux.die.net/man/8/chat) script - no idea if it was OK, posting it below. - `ssh login@machine -l -t Allocate a pty -T Don't allocate a pty -N Don't run a remote command -f Run in background after auth -y Always accept remote host key if unknown -y -y Don't perform any remote host key checking (caution) -s Request a subsystem (use by external sftp) -i (multiple allowed) -A Enable agent auth forwarding -L Local port forwarding -g Allow remote hosts to connect to forwarded ports -R Remote port forwarding -W (default 24576, larger may be faster, max 1MB) -K (0 is never, default 0) -I (0 is never, default 0) -J Use program pipe rather than TCP connection -c Specify preferred ciphers ('-c help' to list options) -m Specify preferred MACs for packet verification (or '-m help') -V Version chat script: assword: mypassword123 ash script: chat -f scriptfile & ssh login@machine My router's shell is ash. I read that this kind of problem is solved by expect, but I doubt I will have enough space on my router for it's depencencies - currently I have 300kB space left on my router, but I could somehow reclaim up to 512kB. How do I make it connect?

I want to establish a ppp link to a GSM provider with my cell phone modem. The modem gets recognized and I can send AT commands just fine, but I can not get the connection established. My chat script looks like: ####################################### SAY 'Setting the abort string\n' SAY '\n' # Abort String ------------------------------ ABORT 'NO DIAL TONE' ABORT 'NO ANSWER' ABORT 'NO CARRIER' ABORT DELAYED ####################################### SAY 'Initializing modem\n' # Modem Initialization '' AT OK ATZ ####################################### SAY '\n' SAY 'Setting APN\n' # Access Point Name (APN) # Incorrect APN or CGDCONT can often cause errors in connection. # Below are a bunch of different popular APNs #REG:\s1 AT+cgdcont=1,"IP","proxy" #OK 'AT+CGDCONT=0,"IP","proxy"' #OK 'AT+CGDCONT=1,"IP","proxy"' #OK 'AT+CGDCONT=2,"IP","proxy"' OK 'AT+CGDCONT=1,"IP","m2mstatic.apn"' #OK 'AT+CGDCONT=1,"IP","ISP.TELUS.COM"' #OK 'AT+CGDCONT=1,"IP","INTERNET.COM"' #OK 'AT+CGDCONT=1,"IP","ISP.CINGULAR"' #OK 'AT+CGDCONT=2,"IP","ISP.CINGULAR"' "" And in /var/log/messages I get the following messages: Jan 11 04:08:49 ariag25 pppd: pppd 2.4.5 started by root, uid 0 Jan 11 04:08:50 ariag25 chat: abort on (NO DIAL TONE) Jan 11 04:08:50 ariag25 chat: abort on (NO ANSWER) Jan 11 04:08:50 ariag25 chat: abort on (NO CARRIER) Jan 11 04:08:50 ariag25 chat: abort on (DELAYED) Jan 11 04:08:50 ariag25 chat: send (AT^M) Jan 11 04:08:50 ariag25 chat: expect (OK) Jan 11 04:08:50 ariag25 chat: AT^M^M Jan 11 04:08:50 ariag25 chat: OK Jan 11 04:08:50 ariag25 chat: -- got it Jan 11 04:08:50 ariag25 chat: send (ATZ^M) Jan 11 04:08:51 ariag25 chat: expect (OK) Jan 11 04:08:51 ariag25 chat: ^M Jan 11 04:08:51 ariag25 chat: ATZ^M^M Jan 11 04:08:51 ariag25 chat: OK Jan 11 04:08:51 ariag25 chat: -- got it Jan 11 04:08:51 ariag25 chat: send (AT+CGDCONT=1,"IP","m2mstatic.apn"^M) Jan 11 04:08:51 ariag25 chat: expect (OK) Jan 11 04:08:51 ariag25 chat: ^M Jan 11 04:08:51 ariag25 chat: AT+CGDCONT=1,"IP","m2mstatic.apn"^M^M Jan 11 04:08:51 ariag25 chat: OK Jan 11 04:08:51 ariag25 chat: -- got it Jan 11 04:08:51 ariag25 chat: send (ATDT*99#^M) Jan 11 04:08:51 ariag25 chat: expect (CONNECT) Jan 11 04:08:51 ariag25 chat: ^M Jan 11 04:08:51 ariag25 chat: ATDT*99#^M^M Jan 11 04:08:51 ariag25 chat: CONNECT Jan 11 04:08:51 ariag25 chat: -- got it Jan 11 04:08:51 ariag25 chat: send (^M) Jan 11 04:08:51 ariag25 pppd: Serial connection established. ###Edit I don't think things are wrong with my chat script but my modem instead. Notice that on the bottom of the messages, the context switched from chat to pppd - why is that? May my power supply be too weak? That's what I suspect now. Any ideas? Also, if I do a killall pppd after this and try to connect with screen screen /dev/modem 9600 the modem doesn't reply anymore until I power cycle it. However, I'm surprised! I hooked it up to a 2.1A USB power supply. ###Edit2 My /etc/ppp/options looks like: debug /dev/ttyUSB1 9600 modem crtscts lock connect /etc/ppp/net-connect asyncmap 0 defaultroute and /etc/ppp/peers/provider like this: connect "/usr/sbin/chat -v -f /etc/chatscripts/pap -T *99***1#" # Serial device to which the modem is connected. /dev/modem # Speed of the serial line. 9600 # Assumes that your IP address is allocated dynamically by the ISP. noipdefault # Try to get the name server addresses from the ISP. usepeerdns # Use this connection as the default route. defaultroute # Makes pppd "dial again" when the connection is lost. persist # Do not ask the remote to authenticate. noauth