I run my raspberry pi with a TP-Link Wlan-USB stick. The stick works out of the box with the pi-modded debian.
But eventhough the automatic connection to one of the saved WLAN-networks in the file /etc/wpa_supplicant/wpa_supplicant.conf works, my PI doesn't request or receive an IP-address (automatically).
I always have to login via ethernet and do a
Code:
sudo dhclient wlan0
manually.
Why?
I thought "well, whatever, no problem, I write a cronjob which runs this command every couple of minutes". But this doesn't solve the issue neither...
Please let me know what could be a better solution.
My script (not working when run as cronjob but manually it does):
Code:
#!/bin/bash
if [ `lsusb|grep WLAN|wc -l` -gt 0 ];
then
if [ `iwconfig wlan0|head -n 1|tr -s " "|cut -d" " -f2` = "unassociated" ];
then
wpa_action wlan0 stop
wpa_action wlan0 reload
ifup wlan0
#wpa_supplicant -i wlan0 -D wext -c /etc/wpa_supplicant/wpa_supplicant.conf -B
#dhclient wlan0
else
if [ `iwconfig wlan0|head -n 1|tr -s " "|cut -d" " -f2` = "IEEE" ];
then
if [ `ifconfig wlan0|grep "inet addr"|tr -s " "|tr " " ":"|cut -d: -f 4|wc -m` = 0 ];
then
dhclient wlan0
for I in 1-4; do
ping -c 1 google.com >/dev/null
done
if [ ! `ifconfig wlan0|grep "inet addr"|tr -s " "|tr " " ":"|cut -d: -f 4|wc -m` -gt 10 ] && [ ! `ifconfig wlan0|grep "inet addr"|tr -s " "|tr " " ":"|cut -d: -f 4|wc -m` -lt 16 ];
then
ifdown wlan0
fi
else
echo "`date`: WLAN0 - online `ifconfig wlan0|grep "inet addr"|tr -s " "|tr " " ":"|cut -d: -f 4`"
fi
fi
fi
fi
Howdie everyone...
I have a shell script RemoveFiles.sh
Inside this file, it only has two commands as below:
rm -f ../../reportToday/temp/*
rm -f ../../report/*
My problem is that when i execute this script, nothing happened. Files remained unremoved. I don't see any error message as it... (2 Replies)
Hi,
I have a script that my operators use as a login profile.
As they need to export their display in order to access the GUI of the data protector program in HPUX machine.
Anyone can advise how I can grep (eg. who -r) the dynamically assigned IP address and automatically put it as a variable... (4 Replies)
Hi all,
I have this problem that puzzles me, i have setup all the right DHCP configuration in Windows Server. The reservation IP address in windows for this specific unix terminal. However, when i rebooted the unix terminal the IP which was already assigned for this box somehow change to a total... (0 Replies)
hi
I need a dhcp congfigured to give some of my clients IP regarding their MAC addresses and rest should get any IP from same pool. I am not sure what to add dhcpd.conf to provide such a pool or group or class. I tried with this but seems not good enough.
<<<<dhcpd.conf>>>>
... (2 Replies)
Hello Experts,
I am working on a software that has network client-server architecture. I need to have a mechanism that notifies me upon change of dhcp address change locally or at remote machine. Windows have IP Helper APIs to get address change notification. Is there something similar in Unix?... (3 Replies)
Hi ,
when i configure my server with a fixed ip address in dhcpd.conf as below
subnet 172.21.151.0 netmask 255.255.255.0 {
range 172.21.151.66 172.21.151.66;
}
host switch {
hardware ethernet 00:05:30:02:DB:31;
fixed-address 172.21.151.66;
}
when i start dhcpd server , it... (2 Replies)
we can assign a dynamic and fixed ip address for a dhcp_client through dhcp server ,
if it is dynamic ip address , it would be having lease time and renews after half of the leasetime gets over.
would the same funda applies for fixed ip address to .. i dont think so ... please confirm on the... (3 Replies)
Where can you find your DHCP Server address? I checked all of the files that this mentioned with no luck.
Quick HOWTO : Ch08 : Configuring the DHCP Server - Linux Home Networking (6 Replies)
Hi All,
Could you please explain the purpose of assigning the static IP by using the DHCP Concept. Like by using the clients MAC address we assign the static IP Address. Waiting for your reply. Thanks in Advance. (6 Replies)
Hi All ,
please view the set up below:
-------------------------------------------------------------------
| DHCP Server |-----------| ROUTER & |-----------| Clients |
| 192.168.99.1 | - -<eth1>| DHCP-RELAY|<eth2>-- | 192.168.88.X |
... (2 Replies)
Discussion started by: gdangoor
2 Replies
LEARN ABOUT PHP
array_shift
ARRAY_SHIFT(3) 1 ARRAY_SHIFT(3)array_shift - Shift an element off the beginning of arraySYNOPSIS
mixed array_shift (array &$array)
DESCRIPTION array_shift(3) shifts the first value of the $array off and returns it, shortening the $array by one element and moving everything down.
All numerical array keys will be modified to start counting from zero while literal keys won't be touched.
Note
This function will reset(3) the array pointer of the input array after use.
PARAMETERS
o $array
- The input array.
RETURN VALUES
Returns the shifted value, or NULL if $array is empty or is not an array.
EXAMPLES
Example #1
array_shift(3) example
<?php
$stack = array("orange", "banana", "apple", "raspberry");
$fruit = array_shift($stack);
print_r($stack);
?>
The above example will output:
Array
(
[0] => banana
[1] => apple
[2] => raspberry
)
and orange will be assigned to $fruit.
SEE ALSO array_unshift(3), array_push(3), array_pop(3).
PHP Documentation Group ARRAY_SHIFT(3)