Ubuntu :: Ad Hoc Not Working - (network Isn't Created For Public Access)?
Aug 3, 2011
Today I was creating an Ad Hoc network for sharing internet connection and I realized it is not working. I have done it before on Ubuntu 10.10, now on 11.04 it just doesn't work. I create a new connection (Create New Wireless Network) and it is never visible to the other computers (I checked the IPv4 settings, it was Shared to Other Computers). I really do not know what is going on, my wireless card is working perfectly fine (I can connect to other network and on additional driver it is there with a green circle).
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Jul 13, 2009
Can any outsider(from Public N/w) access my pvt. network.i.e. my clients of my subnet? If yes how ??and if no why?
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Aug 2, 2011
I'm trying to write a p2p file sharing program using python's built-in libraries. Everything is going well. The only thing is that i'd like to be able to use openssl public and private keys so only a host with the public key could access/decrypt the filesharing. I've gotten these libraries (httplib, basehttpserver, ssl, os) to work using just a pem file containing both the public and private keys but no success with them seperately. Can someone point me in the right direction or offer an alternative? PS, the goal of the project is to create an anonymous, decentralized, secure file sharing program. I want to be able to upload this to sourceforge so everyone can use it, if that's any incentive
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Mar 21, 2011
So I want to put some of my folders on my network. I open up nautilus and go to my home folder and right click -> properties-> share and then selected share this folder, made it so that others could modify stuff on it and have guest access (which is what I want), and changed the share name to "home". Then I clicked create share. I then went to Places->Network->******'s public files on [the name of my computer]. But then some stupid error message popped up saying:
"DBus error org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)"
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Jan 26, 2011
I have an Ubuntu 10.10 in my work environment and have issues handling the Exchange 2007 server's public calender.My outgoing server is SMTP | Incoming server is POP3 (my office have disabled IMAP and run MAPI). First I tried evolution but it said ""The server is running Exchange 5.5, evolution-exchange connector supports 2000 and 2003 Server" Installed thunderbird and i am happy with it. The only thing which i would like to do is access my exchange public calender and firefox will not be able to do it in OWA.
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Jan 23, 2010
recently ran into a problem with my internet access. Im using open suse 11.2 on a Dell Vostro 1520 laptop. I managed to get my wlan running and i can use firefox to access my router. In my router the laptop is also showing as connnected, dhcp reserved an ip for it.However if i try to browse the internet, no page is loading, actually no software that needs access to the web is working.
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Apr 14, 2010
I have setrup Ubuntu Enterprise Cloud on a single machine.
1) I am able to run the instances from store (karmic) On running the instance two ips are assigned (public and private) as 10.B.C.X and 172.19.1.2
2) I am able to connect to the instance (10.B.C.X) through ssh (using key)
3) However I am unable to access the instance outside the UEC (using public ip). When I try pinging, I get an error Request timed out or sometimes Destination host unreachable.
4) I have provided the following access using euca-authorize
Details below:
1) Hardware : Blade (64 bit)
2) Version : Ubuntu 9.10; Eucalyptus the one using apt-get install eucalyptus
3) Topology : Single physical system
4) Mode : Managed no-vlan
[Code]...
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Jun 17, 2010
who has a hitachi dvd cam. makes movies records them to dvd's. but the permissions of the disk do not allow for anybody to open them?
I can gksu nautilus to find the permissions of the disk are set to "-1 - user #-1"
what is this about and how do i fix it so that i can read/copy/do anything with the disk without root permission?
the owner permissions are set by the camera, i'm assuming, because the actual disk creation has nothing to do with ubuntu at all.
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Apr 17, 2010
I have had this configuration at home for years, but I just changed my line provider and I cannot get it to work.
I have a desktop machine with two ethernet interfaces, eth0 and eth1. Etho is connected to the cable modem and that seems to be working fine - well, I'm posting here, right? Eth1 is connected to a Linksys WAP54G wireless access point. I have eth1 set to 192.168.1.240 and the AP set to 192.168.1.245 (the default). The desktop runs CentOS and I have dhcpd running, and I have focused on the dhcpd.conf file, which I have changed many times. Here is the latest incarnation:
Code:
#
# DHCP Server Configuration file.
# see /usr/share/doc/dhcp*/dhcpd.conf.sample
#
[Code]....
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Oct 13, 2010
How I can benefit from a public external IP? Do I need a public IP to access my computer from a remote site?run a tftp server ?
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Jan 22, 2011
does somebody know how dnsmasq / iptables need to be configured such that requests to my public IP from lan are correctly NAT'ed to the host that handles them? Currently my routing device treats them like "oh, these are anyway for me, gnam gnam" which actually doesn't work.Unfortunatly setting up NAT rules that redirect requests from my lan correctly as they are redirected from wan is an option I would like to use only if there is no other possibility.I would like some kind of solution that treats packets that are sent to my public IP as normal packets that are not looped back before they even get out. So they would need to be at least sent to the wan gateway where they are directed back where my firewall can successfully treat them like all other public requests.
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Feb 4, 2010
Is it possible to provide remote Windows users access to a LAN via the Internet when the LAN itself is connected to the Internet via a SOHO router that is assigned an IP address dynamically? An LQ thread from 2004 includes a suggestion to use VPN and DynDNS.com. Is that still a good solution? Are there any security issues?
Assuming:VPN is a good choice. DynDNS.com or similar can be used to give remote clients the public IP address of the SOHO router. the SOHO router is configured to forward VPN traffic to a Linux system acting as the VPN gateway. then, for a LAN of ~20 IP nodes and less than 5 simultaneous remote clients, are there any other VPN server software solutions to consider other than OpenVPN, Openswan and strongswan?
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Mar 20, 2010
i configured ftp in my server.i just want to access the web page created in server through ftp.ya i can able to access. but the problem is ,it,s showing all the files and folders of the server like Desktop,Documents etc.....
But its just need to show only the site files such as index.html and its sub folders.
i think the problem is because of logging in to the server through ftp as normal user,which is created in server. so i think if we login as ftp user we can able to access only the website files.
how to create ftp users.
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Jan 20, 2011
I recently installed Ubuntu 10.10 on my sister's HPtx2000 since she isn't going to use it anymore and it worked better than I expect. The touchscreen works without any additional driver tweaking and installation <3, the wireless works fine, the sound works. I listed those because when i was installing, I was looking around at other people that did this and those were the problems they had (but those was of an old OS).
Well anyways, what I want to ask is about the stuff that doesn't work and the stuff I want to do: The buttons that flip the screen and etc doesn't work. Is there a way to map them and flip the orientation of the screen? And the other buttons too, like the media button. Is there a way to map them to open VLC or something? Does anyone know any tablet programs for Ubuntu? E.g a simple text program that can convert stuff written to neat, typed font? A way to write text into a google search bar using the stylus? And while we're on this, is there a way to map a left click on the touch screen?
In Windows, the left click could be mapped to: a). a side button of the pen, b) the top button of the pen, and c) holding the pen down onto the touchscreen. how to use Samba to access a public folder of a Windows computer? And to access the printer connect to the Windows computer? Some of the tutorials I found were only for folders and printers on the Ubuntu computer.
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Aug 5, 2009
I have two nagging problems on one network which I do not have on another elsewhere, both using uptodate Debian servers. The server is on the private subnet behind a router/adsl modem. The symptoms of the one which does not work
1) Users cannot access their web site from lan. If they try, they get to the router web interface, same as if they entered http:10.0.0.138 which is the router's lan address.
2) Users cannot access smtp or pop3 service using the domain name, they can access it only using the servers LAN address.
I fear that I might have not set up the router properly because appart from that the two servers are almost identical but I do not know where I might have made an error.
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Dec 3, 2009
Since FC6, NFS became very finicky and seemingly causes servers to randomly denying mounts from some terminals but not others, with all exactly the same new FC installation and exactly the same hardware - crazy!. The only difference is hostnames of the terminals trying to mount NFS volumes on the server and I made sure that /etc/hosts on all terminals and servers contain each others ip addresses and hostnames. I always uninstall SELinux which is truly a huge pain in a corporate environment. Is there ANY way I can relax the NFS authentication on the server in order to make sure clients can mount volumes?
e.g. the following is encountered often, with sometimes crazy situations that clients can only mount nfs volum es from the server after I first boot the server and then ALL the terminals. It is painful as you might agree! Other way round, no go, client will not mount until server is booted and then client booted.
In this case I really prefer windows lackey security. It works. Never mind how crappy windows is, at least I don't have diabolical access problems on servers.. NFS used to be very nice about 6 years ago but truly sucks recently imo. /]# mount -o soft -t nfs nfsserver:/public /xfer mount.nfs: access denied by server while mounting nfsserver:/public
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May 13, 2010
I could no handle/circumvent on the past week, despite of the several "googling" and documents reading. I will try to mention all needed bits... I'm managing a network with the following structure:
eth0: internal net
eth1: DMZ
eth2: 10 mbit/sec sync line with eight public /29 IP's + a /30 interconnection network. All public IP's must use the interconnection's network gateway.
eth3: ADSL with ppoe with fixed IP (ppp0).
Now, a few extra info:
- All internal traffic is routed through ppp0 except when it's destined for DMZ and public IP's range.
- DMZ traffic is routed either through ppp0 or eth2. This is done by source IP.
- eth2 has on IP from the interconnection network, and six public IP's are also defined on eth2. Command: "ip addr add ...."
[code].....
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Feb 12, 2010
is there a way to access disk druid once all of the partitions have been created in rhel 5.3?
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May 22, 2010
I'm trying to get OpenSSH public key authentication to work. My server runs ubuntu. My client is a windows machine, and I'm using cygwin. I tried using the instructions here: [URL]... If I test it out using this line: ssh -v -v -v -o PreferredAuthentications=publickey server.example.org
I get this:
debug3: no such identity: /home/Julie/.ssh/identity
debug1: Offering public key: /home/Julie/.ssh/id_rsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug3: Wrote 368 bytes for a total of 1477
[Code]...
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Jun 25, 2010
Code:
# Sample configuration file for the Samba suite for Debian GNU/Linux.
#
[code]...
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Dec 5, 2010
I resolved the issue, see post #4.I've installed gitosis on a home server running Kubuntu Maverick, but am unable to get the ssh public key to work. When I try to clone, I get a password prompt.I entered a password for the key file. Then I copied the resulting public key to the server's tmp directory:
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Jun 21, 2009
I have two computers running Debian Squeeze. I'm trying to set up the public keys for them so that I don't need to use passwords to log in. As far as I know, I did the same thing for both, however only one is working.Here is the connection output for eachBroken:
Code:
OpenSSH_5.1p1 Debian-5+b1, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
[code]...
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Oct 28, 2010
host is windows 2003 server 64-bit
guest is ubuntu 9.04 server 64bit
Qemu : 0.11.1
Qemu manager: 7.0
from Qemu manager, if network card is using User Networking, it's a NAT and I can see that Guest Ubuntu has an ip address 10.0.2.15 and is able to access the internet. However, as Guest ubuntu is running server so I want to do use Tap networking and I assue with Tap, the Guest ubuntu will get an ip address which is in the same subnet as host machine by dhcp. so from Qemu Manager 7.0, I changed Network card to be:
NE2000PCI
Vlan Number =0
VLAN Type: Tap Networking
Mac address: tap0's mac address from host
TAP Network Adpator: Tap0
Note that tap0 was created by openvpn. and then fired Ubuntu guest, ifconfig shows no ip address on eth0 (which has the same mac address as Tap0) so the guest Ubuntu has no ip address and can't access public.
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Nov 4, 2010
I'd like to know if this is common security flaw or normal to open up FTP to the public which is of course protected with password for 3rd party access to maintain our public facing / production website ? If yes, what sort of FTP application to install in your Linux webserver?
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Apr 19, 2011
I've spent days trying to setup access properly from a public address to a monitoring server that works fine locally. Everything works from public access until I try to link to a CVS repository. The rancid CVS repository is set up as a separate server (virtualhost). It appears the referring link causes a DNS error (105: Server Not Found) when the CVS repository server is accessed from the public address. Things work fine when accessing via localhost.
Localhost link:
[URL]
Public link: (this results in 105 error caused by redirection (bold portion of link))
[URL]
Code:
Virtualhost config:
LoadModule jk_module /usr/lib/apache2/modules/mod_jk.so
JkWorkersFile /etc/apache2/workers.properties
JkLogFile /var/log/apache2/mod_jk.log
[code]....
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Aug 17, 2009
Run a script on ServerA which uses a ssh-connection to ServerB to execute a few commands on ServerB. As ServerB only allows login with username+password the whole stuff gets more complex. SSH provides key authentication enabling passwordless login as you probably know. So as stated in many tutorials I did the following:
Quote:
ssh-keygen -t dsa
ssh-copy-id .ssh/id_dsa.pub osr@10.17.120.207
Trying to connect with
ssh osr@10.17.120.207
should now be passwordless but I'm somehow still getting the prompt for the password.here the output from ssh -vvv osr@10.17.120.207
Quote:
OpenSSH_4.1p1, OpenSSL 0.9.7d 17 Mar 2004
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
[code]....
interesting are probably the following lines:
Quote:
debug3: Not a RSA1 key file /users/osr/.ssh/id_dsa.
debug2: key_type_from_name: unknown key type '-----BEGIN'
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Feb 7, 2010
Running the stock Slackware 13 kernel I am unable access a digital camera. The kernel does not seem to be recognizing it as a hard drive.
dmesg:
usb 1-3: new high speed USB device using ehci_hcd and address 7
usb 1-3: New USB device found, idVendor=04a9, idProduct=3138
[code]...
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May 5, 2011
Using my laptop, I'm trying to get onto the local library's wireless network, with zero results so far.Basically, I can see the network, but when NetworkManager tries to connect it just spins for a few minutes and then rejects the connection. (Or the connection is rejected by the router) My wireless connection works fine when connecting to my WPA home network.
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Aug 14, 2010
I go up to the panel and click on the wifi manager, create a new network and name it "loganspc" with no authentication since previously created networks didnt work with those settings. Now before, I used this in conjunction with my eth0 connection so i could give my ipod internet. then i got a wireless router to do that. its exhibiting the exact same problem. Both the router and my laptop's network are invisible. I create it and then i cant connect to it with my ipod. I do a wifi scan (with an app, its jailbroken) and it doesnt find it still. nor does it find the routers network.
[Code]...
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Nov 3, 2010
I am trying to do a net install. I set up a mirror of lenny using apt-mirror inside a virtual machine on my network using the following guide: [url]
And I changed everything in the guide specifically for Lenny.
I gave the VM bridged networking, and assigned it its own static IP address.
When I attempt do an http install, and point the installer to the address, I get the following error message: choose-mirror[3885]: WARNING **: mirror does not support the specified release (lenny).
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