I'm doing some research into ip roaming and haven't come across a whole lot. My definition of IP roaming is the client / server changing of IP addresses on a regular basis using a pre-set number of IP addresses that both client and server have knowledge of. Specifically I'm interested in if anyone knows of any Linux applications that allow for IP address changing on regular intervals.
View 3 RepliesI'd like to set up a shell script that will send various emails at regular intervals through gmail. I'm sure that there is some sort of text-based email client out there, but I'd like to do this with cron or anacron. I know a little bit of shell scripting but am definitely not great at it.
View 2 Replies View RelatedI am trying to find a way to execute a python script in regular time intervals? How can I do it?
View 2 Replies View RelatedI'm using Fedora 13 , wireless card:Intel 512AN_MMW kernel version:2.6.33.6-147.fc13.i686 below is my problem: when i finished install F13,i can use Wireless card surfing internet i have multiple ap's , and if the ap set with same ssid and different channel, i can roaming between ap's if i'm accessing the internet ,
otherwise, it won't change to greater signal ap if i'm not using the internet , does this condition normally ?
The other question is , if i'm using different ssid , like "wlan01" "wlan02", can i roaming between this two ap's automatically?
How can I stop my wifi roaming when I don't want it to? I connect to the internet through one of a number of hotspots in my area, all with the same name. Frequently, sometimes several times an hour, my machine will spontaneously switch to a much weaker hotspot than the one I normally use. This causes an enormous amount of disruption, with today's disruption really taking the biscuit: I was in the middle of an international VOIP conversation with a potential employer.
I can't remember whether things were better when I was using wicd instead of network manager, but wicd had a huge hit on my system resources (2% or more of CPU), so it's not a great solution. In the KDE interface to Network Manager you can specify which ESSID to connect to, but these settings are ignored.
I'm having problems connecting to a wireless network on my Dell inspiron 1520. i can't seem to enable wireless roaming on ubuntu and i get various error messages when i try.
When i run iwconfig, i get:
running iwlistscan gives me:
When i right click the network manager, there is no "enable wireless" option. I know that wireless works since i used it last night on windows, and the radio is turned on.
I am a simple man with a simple question. How do I change UNR interface to the regular GNOME desktop? IE. Which packages I have to install?
View 6 Replies View RelatedPart of a perl script I am writing need to change the character at an index to upper case. Now i am new to perl and i am having some trouble getting it to do it. In c++ i would do something like
Code:
Now from what i understand the same thing is possible in perl using regular expressions. But i cant get it to work.
I have tried several places for help but I am getting no where...Here is my background.I have spent all weekend to replicate my development server back at home. I have an Apache remote server with 3 IP based virtual hosts pointing to
[URL]
Now I have been able to set up a VM on my desktop, installed the OS, the applications, the db server, apache etc. Everything is looking good so far. So right now I have,
[URL]
So when I go to 192.168.0.111, I go to [URL] so I guess apache is working aswell.What I want to do is, instead of going to [URL] I want to change it to another address such as a.me.add1How can I do this? I am looking through the virtual hosts section, I have changed server name entry etc but its not working.Can you tell me in big picture what I would need to do to set that up? My current set up doesnt really help me much once the site get the www address.tell me if Document Root of IP address 192.168.0.111 points to [URL] will it always resolve into that webaddress. That is if I enter 192.168.0.111 the browser will redirect it to [URL].
is it considered standard practice to change the user password on a regular basis and if so how often?
View 4 Replies View RelatedI have several Ubuntu installs, including one on a flash drive. I also have a server. I want to sync my home directories from all my client installs onto my server. What I want is really a combination of two things: Unison, which enables me to work without a network connection. An SFTP filesystem so that changes are immediatly sent to the server, not JUST at login and logout, which makes login and logout extremely slow. Is there any combination I could use? Could I make unison sync extremely frequently?
View 2 Replies View Relatedusin a command which will allow me to evaluate the performance. What i would also like to do is compare the performance over 30 minute intervals. I am thinking i can use the ps -aux command but not sure on how i would specify the time intervals. Is there another way? I really want to see the CPU, disk usuage and memory.
View 9 Replies View RelatedDoes anyone know a good program to log ip addresses when visited or connecting to your machine? Something like tcpdump but for ip addresses, I forgot what its called.
View 3 Replies View RelatedIs it possible to configure two IP addresses using one NIC? I'm implementing a VPN server on network 192.168.1.0, ultimately to be accessed over the Internet and through an ADSL router with port-forwarding to the server. Right now I'd like to test it on the LAN, but with the VPN client and server both on the 192.168.1.0 network, that test would not be be valid.
If I had a spare NIC I could put the server on both the 192.168.1.0 network and, say, a 10.0.0.0 network, configure the client on 10.0.0.0 and test. Not having a spare NIC, I'm wondering if it is possible to configure the server with two IP addressese NIC.Virtualising hosts are able to do something similar when running guests with NICs in bridged mode. Log files show they switch eth0 into promiscuouse.In case it matters the server OS is Slackware 13.0.
Can I set 2 addresses for the *1* Ethernet card that I have on my motherboard? How would this scenario work?
View 5 Replies View RelatedI've used two internet services to show me my IP address, and I get different results:1. Whatsmyip.org : ***.**.109.***2. ipchicken.com : ***.**.111.***All the * numbers are same, except 109 and 111. (or link me to explanation) of which one's which?
View 8 Replies View RelatedHow can I get two ip addresses to communicate with each other which are not in the same 255 range?
Like:
192.168.0.1
and
192.168.1.1
My machine has ONE ethernet card and is on a LAN.IP address is assigned to hosts using DHCP.I can have more than one MAC address on LAN by running Virtual Machine and setting network to bridged. This way, my virtual machine simply acts like there is one more machine in the network.Running VMWare for this job is a a bit heavy on resources. Is there a way so that I can I can have 2 or more ip addresses with different MAC address on the same machine without having to run VirtualBox.
By googling, I think its related to bridging and tap. And, I am sure thatts NOT IP-ALIASING because in ip-aliasing both the ip addresses have the same MAC address.Basically, I want my system to have interfaces like:-eth0 - which was originally presentlo- thats always present :|newint0 - New interface with new MAC address and IP addresses which can access my LAN directly. Its like if I bind, let us suppose curl to this interface, its like a different connection
I wonder if it's possible to have cron run xmessage or gxmessage at certain intervals?
View 7 Replies View RelatedI have connected my computer to network. Computers in network have dynamic ip address which is assigned by ADSL modem's DHCP. Besides this I want to have static IP address for same NIC. So is it possible to have both static and dynamic IP address for single NIC? If so how can I assign it using command and also in GUI?
View 7 Replies View RelatedI have a Dell Inspiron 1545 with Ubuntu Karmic that was working like a charm until last week.When I'm using my college's wireless I can browse just fine, but when I'm in my home's network the web addresses cannot be resolved.I was suspecting of DNS error, but it's the same DNS address in all the other computers, and the whole network is working just fine.The thing is that if I use the IPs, for instance 64.233.163.104 for Google, it works fine, both pinging and browsing. So the problem is in resolving the addresses...
View 9 Replies View RelatedI am running a dual boot PC, Ubuntu 10.10 & Win7. I do sticky static IPs on my local network, but it doesn't work cause the Ethernet adapter gets a different MAC address in Windows 7 (EF:9F:E9:F7:F7:F7) than it shows for Ubuntu 10.10 (00:13:74:00:5C:3. I am not sure if this is a Windows problem or something up with Ubuntu. The card is an on-board Atheros L2 fast Ethernet adapter. I have tried updating the drivers in Windows & nothing is working.
View 8 Replies View RelatedI would like to know if a rule has been applied to the iptables.active file to accept direct connections on port 22 through an IP address, can I also add a mac address/addresses to the rules such that if I am not on the network with the accepting IP address, that my MAC address will still get me in?
View 4 Replies View RelatedI would like have a password for accessing my web site which works fine. I also want for the specific site to allow access only for a specific range of ips. Right now the following config should forbid my access, as my ip is different from 200.200.200.*
View 6 Replies View RelatedI am looking for a command which, when typed from the command line, returns the ip-addresses of the DNS nameservers that my ISP is using.I think is should be technically possible to write a program that does this, because linux installers set up /etc/resolv.conf correctly (as does knoppix). But I've been unable to find a command that does it. Is there one, and if so, what is it called?
View 14 Replies View RelatedI do not currently fully understand relationship between binary numbers and ip addresses and subnet addresses; nor am I asking for an explanation here at LQ, when there are plenty at wikipedia and other places...
Even after reading the wikipedia article on it, I still don't grasp it completely, so I was hoping that someone who grasps it in its entirety could answer a simple question.
How can I express the range of ip addresses from 172.22.22.200 - 172.22.22.230 ?
I was trying to make a rule for iptables that only did nat on that specific range of ips, and when i tried used the "-s" flag followed by 172.22.22.200/11 it always changes to 172.0.0.0/11 in the actual rule that is created and displayed by iptables -t nat -L.
I already have many hosts defined on my network, and rather than going through each one and changing its ipaddress to 172.0.0.#, I was hoping to learn a way to represent them in the iptables rule.
I am using DHCP on my home network. There could be as many as 5 computers logged in at any given time. Their IP addresses change depending on the sequence they log in.I want to be able to connect to them from any of them (some wired, some wireless) and share files by issuing a mount command for the appropriate shared drive.My question is how to get the IP of each computer when I only know the names of the computers. Pinging the computer name succeeds, but it does not give the IP.In other words I am looking for a Linux command that will come back with a list of IP's with their corresponding computer names so I can issue the right mount command. I would like to issue this command from a Linux terminal, but would also be happy to issue it from a Windows XP station.
View 14 Replies View RelatedI'm on Fedora core 14 linux. and I'm online with the HSPDA modem. My modem is /dev/ttyUSB0 and when it's dialed it creates the interface /dev/ppp0 , My question is when I hit ifcofig it shows two IP addresses in the ppp0 interface.
Code:
[nature@localhost ~]$ ifconfig
eth0 Link encap:Ethernet HWaddr 20:6A:8A:12:CF:53
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
[code]....
when I get the routing table, the gateway is setten to the 10.64.64.64 and when I look my Ip address global I found it's 175.157.64.119.
I noticed when looking at visitor stats for a web page, most users IP address resolves to a city. But for some visitors, the city is "location not available". How can someone get an IP address that's off the map? Where I'm seeing this is in the stats for an awurl.com link.
View 1 Replies View RelatedMy Linux gateway has multiple address to internet:
eth0 = 76.148.200.3
eth0:0 = 76.148.200.4
eth0:1 = 76.148.200.5
and it's own gateway which is 76.148.200.2 (probably not relevant) and I also have which is not internet, but local:
eth0:2 = 192.168.0.1 netmask 255.255.255.0
They all work fine and tested. Now I am sharing the internet through eth0 (76.148.200.3) to 192.168.0.1/24 and that's working fine. The script I use to do that is here...
Code:
#!/bin/sh
echo 1 >/proc/sys/net/ipv4/ip_forward
echo 1 >/proc/sys/net/ipv4/ip_dynaddr
iptables -t nat --flush
iptables -A FORWARD -i eth0 -d 192.168.0.1/24 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -s 192.168.0.1/24 -o eth0 -j ACCEPT
iptables -A FORWARD -j LOG
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
Now all I want to change in the script is to share it through 76.148.200.4 (eth0:1) instead of what is already sharing through 76.148.200.3 (eth0). I am sure this is easy but can't work it out and iptables doesn't accept 'aliases'. How I can do this by modifying this script?