Ubuntu Networking :: Run A Program When Network Connection Is Established
Jan 5, 2010I want a program (shell script) to be executed as soon as my DHCP connection is established successfully. Is there any way I can do this ?
View 2 Replies
ADVERTISEMENT
Networking :: Openvpn Connection - Can Not Ping When Connection Established
May 8, 2010I have problem in making connection to my vpn server I can make connection from windows xp to that but can not open any website and I can not ping 172.16.10.1 when connection established.
These are my configuration files:
server config file:
Quote:
client configuration file:
Quote:
And this is my server syslog tailed file:
Quote:
And I added this routing to /etc/rc.d:
Quote:
And this is my iptable:
Quote:
And vpn connection is lost after establishing a lot.
Ubuntu Networking :: Established Connection But Not To Browse
Jul 5, 2011there is an open wireless i can connect it -in ubuntu- but can not browse anything.we tried to connect via mobile it's working fine ,in addition via Windows XP it's fine ,but not in ubuntu why???!!
View 1 Replies View RelatedNetworking :: Run Script When Connection Established?
Jun 10, 2011I was wondering, on a GNU/Linux system including but not limited to *ubuntu, how would I go about determining when the network connection is established on any interface, so I can run a shell script only once at that exact time?The idea that comes to mind is polling-and-sleeping, but I'd like to know if there is another, more robust way? Like an onconnectionestablished javascript event or something.
View 2 Replies View RelatedUbuntu Networking :: Connection Is Established But Not Able To Connect To Internet In 11.04?
May 21, 2011I bought my new Dell inspiron N1401 64bit laptop. It has windows 7 installed in it, I am begineer to linux. I have installed Ubuntu 11.04 64 bit version. I have a wired internet connection which works fine with my windows 7. When I switch to Ubuntu, when internet cable is plugged, the top right corner, network manager shows connection is established, but when I open firefox I cannot access internet. I tried searching on forums, but I could not make it work. If I type ifconfig command in terminal attached is the output I get, I dont know what is the problem. I want to use Ubuntu than Windows
View 2 Replies View RelatedUbuntu Networking :: Internet Connection Is Established But Can't Open Any Sites At All
Feb 13, 2011I see something like internet connection is established. Ive established etho connection but I cant open any sites at all. I also have Windows on another hard disk and it works well. About a week ago I had Ubuntu 8.04 and it worked really fine. What�s wrong? Is there any remedy?
View 3 Replies View RelatedNetworking :: Shell Script Should Switch If Connection Established But Doesn't?
Jan 18, 2010I have created the following script
Code:
#!/bin/sh
interface=`ifconfig | grep -iE "(wlan0|gprs0)" | awk '{print $1}'`
[code]...
Ubuntu Networking :: Sharing Connection - Get "connection Established" *pause* "disconnected"?
Jul 26, 2010my netbook shares it's wireless connection to my desktop. i've done this through the gui (edit connections > eth0 > ipv4 settings > shared to others) and it has worked for the last i don't know how many months.recently it had become a bit touchy with regards to how it was set up. it didn't work unless the netbook was already booted and wired in at the time of booting the desktop.now however it's gotten even worse and all i get when i connect them together is
"connection established" *pause* "disconnected" *pause* "connection established" *pause* "disconnected" *pause* "connection established" *pause* "disconnected" *pause* "connection established" *pause* "disconnected" *pause* "connection established" *pause* "disconnected" *pause* "connection established" *pause* "disconnected" *pause* "connection established" *pause* "disconnected" *pause* "connection established" *pause* "disconnected" and so on.
Ubuntu Networking :: Ubuntu 10.04 TLS Connection Established But Internet Not Working
Jul 24, 2010My wired network dead which i used before 1hr. I seen my firestar firewall application blocked a hit from my internet provider gateway address. I allowed all the connection from my provider gateway after that hit. It did not work. I installed a new OS ubuntu 10.04 tls. and assigned the IP address but still I cant acess the internet. It says connection was established but i cant browse net. Some one pls help me. I tried configuring fire fox. no use.I am using Internet dish. I configure it by browser by entering dish IP.
View 9 Replies View RelatedUbuntu Networking :: Wireless "connection Established" No Browse No Ping
Jul 7, 2011Ubuntu 11.04, wireless adapter BCM4312.The connection works for a while, for a random length of time from a few minutes to a few hours, then stops working. The laptop says it's connected, and the router says it's connected, but the browser can't find any Web pages, it can't find the router, and there is no response to pings from the router or any other device on the local network or on the Internet. "Host unreachable." When I try to ping to the laptop from another one, it times out.If I shut down the computer and try again a few hours later, it works fine again for a while, then after a while it stops working again.
In case it's relevant, sometimes when I restart networking from the command line, it says "ignoring unknown interface eth1=eth1," even though ifconfig -a lists eth1 as up with an ip address. eth1 is the wireless adapter. Another laptop with Ubuntu 11.04 connects to the same router with no problems.Using a fixed IP address doesn't change anything.
Ubuntu :: Wireless Connection Established But No Internet
Jan 5, 2010I am new to ubuntu, just installed it a few hours a go. I've managed to get it hooked up to my wireless connection but still the internet doesnt work. What I can do to get it working?
View 4 Replies View RelatedUbuntu :: 10.04 Wired Connection Established But No Internet?
Sep 9, 2010i have just installed ubuntu 10.04 on my laptop hp 550.after i finished installation i connected to internet via eth0 wired connection normally and everything was fine...after about 1 hour i had no internet....i try restart but is the same problem....this is strange because my eth0 says connection established and when i open mozilla i cant open google either..when i ping [URL] it says "cant resolve "
my internet works fine in windows so what should i do to have back my internet on ubuntu...i cant do anything else in ubuntu if i have not internet and i like very much ubuntu so
General :: PPPoE Connection Not Established Under Debian Testing
Nov 21, 2010Currently I use openSUSE but the 6 months release cycle is starting to bug me a bit so yesterday I have tried Debian Testing daily snapshot created on 20-11-2010, using KDE desktop (I am a KDE fun). All goes well until I try to make a pppoe using KDE's module network manager.
I created the pppoe connection with user and password but I got 2 problems:
- After I have created the connection it doesn't appear along with "Auto eth0" above the button manage connections.
- The pppoe connection is not established (both password and username are correct).
I know that I could use pppoeconf or ceni for that matter, but I am new to debian as I where new to openSUSE 4 years ago and I am still learning, so please don't tell to use them I just want to know if there's a way to use network manager from kde 4.4.5 to establish a pppoe connection (you could name it the GUI way, no worries I like using the console as well). Under openSUSE I have a program called qinternet that helps me with pppoe connection is there something similar under Debian?
Ubuntu :: Change Settings On The Notifications That Show On The Screen When A Wireless Connection Is Established?
Sep 3, 2010I've been wondering about how I can change settings on the notifications that show on the screen when a wireless connection is established, when I get new mail, etc. They look a lot like growl notifications from OSX, but clicking on them doesn't show me anything. If someone could explain a little about what they are/do
View 2 Replies View RelatedUbuntu :: Program Startup After Network Connection?
Feb 28, 2010the startup of programs when i log into my Ubuntu Account.
My Operating System:
- Ubuntu 9.10 Karmic Koala (only using Gnome)
Programs at StartUp:
- Mozilla Thunderbird (2 email-accounts for business)
- Emesene (MSN Client for business use)
- FireStarter (I know it's just the GUI, but i love to view the Logging at realtime since Ubuntu is the Main-Server in my network)
Is it possible to configure the startup, so that the programs start running AFTER the Network Connection is established?
Programming :: C Program To Check If Network Connection Available Or Not?
Jun 3, 2011I am writing a simple C program which has to find whether the system is connected to network/internet or not..
View 10 Replies View RelatedUbuntu Networking :: SSH Over One Network Connection And Out To Internet On Another Network Connection
Jul 9, 2010I need to setup an Ubuntu Server to handle backups over the network (probably rsync over ssh). That server will then transfer the backup data offsite over a secondary external data line.How can I configure the ethernet interfaces to handle such a scenario?
View 1 Replies View RelatedOpenSUSE Network :: Samba Wants Username And Password - None Have Been Established - SuSE 11.3
Aug 17, 2010I am attempting a simple two computer office network using Samba. When attempting to access the shared director, a screen pops in Linux and Windows requesting a user name and password. I haven't established a user name or password. Is there a way to allow any computer on the network to access the shared file without a user name and password?The following is the result of:
cat /etc/samba/smb.conf
[global]
add machine script = /usr/sbin/useradd -c Machine -d /var/lib/nobody -s /bin/false %m$
domain logons = No
[code]....
Ubuntu Networking :: Wireless Network Connection Active But Still Not Internet Connection?
Jan 24, 2010Its a case of ".... wireless network connection active but still not internet connection .."I am using WEP - 128 key ... Works when I connect directly using ethernet cable ... but not wireless (pci and wireless router)
ubuadmin@ubucomputer:~$ ifconfig
wlan0 Link encap:Ethernet HWaddr 00:06:25:12:83:3b
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::206:25ff:fe12:833b/64 Scope:Link[code].....
OpenSUSE Network :: Mobile Internet Connection - Program Doesn't Find The HUAWEI USB Stick
Aug 11, 2010I have opensuse 11.1 Gnome on Lenovo S10e. I'm wanting to establish a mobile internet connection. I have tried so far...*UMTSMON but when I click on it nothing happens. I have reinstalled the program several times to no avail. *WINE to run the Optus program, however the program doesn't find the HUAWEI USB stick & *Via a Bluetooth connection (use mobile phone as a modem) didn't work either Anyhow, I have tried these and some other ways to get mobile to no avail.
Also, have gone to network connections-mobile broadband-add-configure it- but what am I forgetting to do? Need a path I can take to get mobile internet working. (I even have a direct SIM card slot in this laptop
Fedora Networking :: Bridged Networking And NetworkManager - No Network Connection Because Network Isn't Managed
Mar 2, 2011I have installed qemu/kvm and created a Bridged network connection which works just fine(Windows 7 VM won't work in NAT mode.)
But when I try to use NetworkManager it says that I have no network connection because the network isn't managed, (I set the settings in ifcfg-br0 and ifcfg-eth0 to be managed)
The real problem is that now I can't use my VPN connections (I have many) in NetworkManager.
Is there a way to have both of these pieces of functionality?
I am using FC14
Ubuntu Networking :: Check Which Program Is Using The Internet Connection?
Feb 11, 2010I'm using Ubuntu 9.10. My internet connection is an ADSL which I have set up using "pppoeconf". The connection starts at boot up. I can also start it if needed by using "sudo pon dsl-provider" and can stop it by using "poff dsl-provider".Recently I noticed that when I start my computer, there is some program (or programs) which is connecting automatically to the internet and downloading and uploading a lot of data. The data transferred can exceed 200 mb or 300 mb in an hour. I don't know what is being uploaded or downloaded.I know for sure that no file sharing programs like bittorrent clients are started at bootup so it is strange that this much data to be downloaded and uploaded without me sharing files or downloading files explicitly. The update software also does not run by default as I have opted to start it manually.
Is there any application which shows the programs that are connected to any particular port and transmitting and receiving data?In Windows XP I use a program called "What's Running" which clearly lists the programs using the different ports in the local machine and the remote IP addresses that the program is connected to. It also shows which program is transmitting and receiving data at any point in time. Is there any similar program for Linux?My internet connection is a data limited package otherwise I probably would not have bothered.
Ubuntu Networking :: What Program Manages Wireless Connection?
Jul 4, 2011I have 11.04 with Classic Gnome desktop working fine including wireless network connection:Any pointers on how I can get the network connection functioning in the Xmonad session would be appreciated - e.g. what program handles the setup and bring down the wireless connection?
View 1 Replies View RelatedUbuntu Networking :: Internetconnection Established, Servers Not Found?
Nov 26, 2010I have received a new modem from my provider and installed it. No problem with that except that there is a problem with my internetconnection. The internetconnection is established.But my computer gives an error every time I want to visit a website:
View 4 Replies View RelatedNetworking :: Established Connections Not Getting Cleared
Apr 13, 2009We are having an issue with our application where once we start making a few hundred connections to our Linux server, our connections are staying in the established state. When our app is working fine, the client sends a basically a heartbeat every five minutes. It is all nice and clean, receives the FIN and shuts down and that's that. tcpdump as follows:
Code:
12:53:10.965206 IP serverA.xxx.xxx.com.40315 > serverB.xxx.xxx.com.1234: . ack 2 win 46 <nop,nop,timestamp 3299017001 2043788445>
12:58:10.892878 IP serverA.xxx.xxx.com.40322 > serverB.xxx.xxx.com.1234: S 494392992:494392992(0) win 5840 <mss 1460,sackOK,timestamp 3299316941 0,nop,wscale 7>
12:58:10.894882 IP serverA.xxx.xxx.com.40322 > serverB.xxx.xxx.com.1234: . ack 3318963465 win 46 <nop,nop,timestamp 3299316941 2044088355>
12:58:10.894886 IP serverA.xxx.xxx.com.40322 > serverB.xxx.xxx.com.1234: P 0:78(78) ack 1 win 46 <nop,nop,timestamp 3299316941 2044088355> .....
Then things start getting busy, and it ends up looking like this:
Code:
01:28:10.493760 IP serverA.xxx.xxx.com.41132 > serverB.xxx.xxx.com.1234: S 774853781:774853781(0) win 5840 <mss 1460,sackOK,timestamp 3344315513 0,nop,wscale 7>
01:28:13.491231 IP serverA.xxx.xxx.com.41132 > serverB.xxx.xxx.com.1234: S 774853781:774853781(0) win 5840 <mss 1460,sackOK,timestamp 3344318513 0,nop,wscale 7>
01:28:13.491755 IP serverA.xxx.xxx.com.41132 > serverB.xxx.xxx.com.1234: . ack 3597595480 win 46 <nop,nop,timestamp 3344318513 2089089105> ....
What could be the cause if the fin was received at 01:28:13.492743, but hours later this connection is still established:
gateway 16514 root 111u IPv4 2714750 TCP
serverB.xxx.xxx.com:1234->serverA.xxx.xxx.com:41132 (Established)
There is no corresponding connection in the client's netstat.
Networking :: Using ESTABLISHED And RELATED Together Seems Dangerous
Apr 16, 2011I've seen packets coming to my computer through a DD-WRTv24s2 gateway above port 32K several times. I have iptables (using fwbuilder locally) both places. My desktop stops the packets. But I'm guessing the problem is as I described in the title for this post. Yes?If you ESTABLISH a connection to some webpage, and you just accept ESTABLISHED or RELATED datagrams in rule 1 of your iptables, what will keep incoming TCP from that (presumably nefarious) site from going straight to your desktop like the building firewall isn't there?? If the site wants to connect to you above 32k, or portscan you, its RELATED correct? They know your IP. You've ESTABLISHED a connection.If my guess is correct, it would seem wiser to NEVER use these together. Better to ACCEPT all ESTABLISHED. And if something is RELATED, then ACCEPT it only if its the data connection on FTP or individually by service or protocol.
View 6 Replies View RelatedNetworking :: Using Netstat Command - 54406 Established?
Dec 1, 2010I just found something "strange" by using netstat
tcp 0 0 myhost.deprecated:53719 amaretti.chimfar.:54406 ESTABLISHED
How can I check what is the program that is responsible for this line?
Networking :: Iptables Rule To Accept All Connection From Program
Oct 29, 2010my iptables Policy is Drop..my server ports is open just for httpd,ssh .Is there any rule which can allow all connection from a specific program for ex. i want to scan an ip Address ports.as you know nmap connect to every known port to see if that is open or not so, if i want to allow nmap to connect, i need to include all ports for that, or i can allow connection from localhost to outside in all ports .my server is very secure . i dont want other programs (probably a backdoor) use those ports to connect outside i want to know is there any ability in iptables which can rule connections by name of program like "Allow any Connection from /usr/bin/nmap to everywhere " ?
View 2 Replies View RelatedNetworking :: Any Program To Limit Download Speed Per Connection?
Mar 29, 2011I need a program that will limit download speed per connection. So that each download is limited to 100kbit/s for e,g. I tried trickled, it only limits whole application (and doesn't work with firefox). Also tried pyshaper, doesn't work. Is there such software?
View 1 Replies View RelatedGeneral :: Networking - Network Card - Connected To Network - Given Access Point - No Connection?
Apr 3, 2010I installed the driver for my network card. iwconfig and ifconfig are all responsive to connecting to the network, I'm given an access point address. Then, I try to connect to a website and no dice. ping www.google.com yields no result. What gives?
View 2 Replies View Related