Ubuntu Networking :: Unable To Detect Private Key File?
Sep 17, 2010
I'm running Karmic Koala on my laptop and I'm attempting to connect to my university's secure wireless network. I was directed here by the university's computer help websiteI've followed all the steps, but when I open the wireless network authentication applet and try to browse to my private key, I can't find it. The "chose your private key" window claims to be looking for "DER, PEM, or PKCS#12 private keys (*.der, *.pem, *.p12)," and while my private key file shows up as a .p12 file when I open that location with my file browser, the file doesn't show up when I try and browse to it from the authentication applet. I've attached an image which shows the file in one window, but not in the other f clarification.
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Apr 6, 2010
I'm running Ubuntu 9.10 on a Dell M6400, using Wubi for Windows 7 x64. My ISP sets my router password at source, meaning I'm unable to disable wireless encryption (which is WPA 2 Personal). That being said, I don't seem to be able to detect *any* wireless networks (I can still connect via ethernet, which does not require the password).
I'm not certain where the problem is, so I'll outline my steps and what the results were:
Under "System > Administration > Hardware Drivers" I have the "Broadcom STA proprietary wireless driver" installed (for BCM4311-, BCM4312-, BCM4321-, and BCM4322- based hardware)
The driver is activated and currently in use. When I type
"nm-tool", I get NetworkManager disconnected
- Device: eth2 -----------------------------------------------------------------
Type: 802.11 WiFi
Driver: wl
[code]...
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Aug 10, 2009
I have a broadcom 4322 with the broadcom-wl driver on Fedora 11. It worked the first time I used it, and since then is unable to detect any networks. I've tried reinstalling the driver, and it still does not work. Any suggestions?
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Apr 24, 2010
Ubuntu 9.10 comes with rt2870, the driver for my Zonet ZEW2545, and I have had to blacklist rt2800usb in /etc/modprobe.d/blacklist.conf in order for rt2870 to work. My network adapter is able to attempt to connect to my router, but after 10-40 seconds it tells me I am disconnected again. This adapter works fine on windows.
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Mar 9, 2011
Right so I just bought an Acer TimelineX with a Broadcom BCM43225 BCM43225 802.11b/g/n WiFi card. With this card I am not able to detect any wireless networks and after googling around I found out other people have had similar issues. But my problem is kind of unique in the sense that I'm using Backtrack as my Linux distribution (I'm not a blackhat or anything, more of an enthusiast with no malicious intentions) Also I'm not a God at Linux so if you have any solutions please be verbose! I tried the following: [URL] But the Makefile spits out a syntax error. (Makefile:29: *** missing separator. Stop.)
[Code]....
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Aug 18, 2010
i noticed that all files can be seen by another computer if the drive is accessed
can I stop this? can i set a private folder?
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Oct 12, 2010
I have a seperate partition for my "/home" folder. Whenever I install a new distro I format my "/" folder.
This way I was able to access my old home data files since I install using a different username. Everything worked fine until last Sunday.
10.10, unlike other versions of ubuntu, has encrypted my old username in my home folder.
Then using this document [url]
I was able to mount my hard drive again. But all the file and folder names are like this.
Btw I don't remember selecting an option to encrypt my old home directory in the first place, what is this ?
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Oct 12, 2010
I am trying to use puttygen to create a ppk file that I can use with putty. I try to import the private key and it gives me the error: Couldn't load private key (ciphers other than DES-EDE3-CBC not supported). Now I obviously know this is telling me that I have the wrong cipher, but what what do I do to use the correct one? Here are the instructions that I used to create the keys.
Also, when I open the key this is the top:
- BEGIN RSA PRIVATE KEY -
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC
and then some other stuff that I don't think I should share. But the weird thing (to me atleast) is that it lists CBC right at the top there which is what puttygen wants. Why won't it accept it?
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Aug 8, 2011
I'm a absolute "server- noob" but I've got some experienced with desktop linux and want to build my own file server to access my stuff over the internet. I'm using dropbox for a while now like a cloud drive by simply mounting the "private" folder (which I encrypted with encfs/BoxCrypt) in order to cross-platform use important files. The problem is that Dropbox only provides 2 GB for free and I don't know how secure my data is up there. Moreover I don't wanna always sync all files locally.
I got an intel atom machine standing around and so I want to build my own file server to provide the same or at least a similar service.
1. Which type of server application provides a "network drive" that computers (several users) from the internet can access?
2. What's the best way to encrypt my data and transmission in order to make the system absolutely unattackable/unreadable from outside?
3. Is there a service that can provide a dropbox-style sync mechanism?
4. Which distro should I use? I'd prefer a non-desktop enviroment solution but never had anything to do with it. Is that possible for an average linux user?
I'm aware that this solution won't be very fast because of the limited upload of a standard internet connection but that would be ok! It's more that I want to have the possibiltiy to access all my data as a thin-client anywhere, anytime on any machine and still be on the safe side. I know that this is some kind of contradiction but what would be the best compromise? I know some questions may sound stupid but I really never had anything to do with servers at all in the past...
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Jan 6, 2010
my squid show like this when i try create swap directory
[Code]....
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Sep 29, 2010
i am logging on to ssh server from my laptop and i have my private key there but i would like to logon also from my desktop at home so how can i copy the key?
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Jan 26, 2011
I'm currently successfully using the Terminal Server Client to connect to an SBS 2003 server at a remote location. I've been trying to figure out if it's possible to connect to any of the XP machines on the LAN behind it. I currently have to use RWW in IE on a VirtualBox XP machine to do that, and I'd love to be able to get rid of VirtualBox completely.
The server has 2 NICs, one connected to the internet, and the other connected to the LAN. There is only one public IP. The computer I'd most like to connect to has a static, private IP. Anybody done anything like this or have any thoughts on how to get it to work?
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Feb 12, 2011
My Ubuntu server is now providing routing duties to my network, but I'm having trouble opening ports to my network. I have a DynDNS account, so the IP is always current, but I can't ping even my IP directly.
My network map looks like
Internet > SpeedTouch DSL modem with DHCP > eth1 > Ubuntu > eth0 > LAN
With the modem providing a 192.168.1.xx IP to eth1, I can browse fine. The default gateway is my modem. I switched to the public IP of the modem so I could use iptables for firewall duties, but I was locked out of the internet. No gateway was set when I did that, but eth1 received the public IP of my modem.
How can I use the public IP assigned to eth1?
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Oct 2, 2010
I has used centos for all my servers but today i have problem with my router.
I install and configure my router/gateway as follows code...
at previous configuration (centos 4x) everything work well with those configuration but when i use centos 5.4
all my client cannot browse the Internet, its only work when i put the ISP dns (221.321.32.15)
i want my client use 192.168.0.1 as DNS.
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May 7, 2010
After years with Linux and using ssh on a daily basis I have to admit I've never setup public/private key authentication and I've never run passwordless logon to ssh. It's not that I've never tried, I have - I've just never got it working. That to me is an almost alien concept as I am a tinkerer at heart and rarely stop until something is working the way I'd like it to. I get the principle of what's going on but I've always had a mental block about it.
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Jun 2, 2011
I have a strange problem and I can't seem to find clear information on how to do this . I have 2 loadbalancer set up keepalived NAT mode with 2 interfaces each
internal vip - 192.168.0.199
external vip - 195.x.x.21
lb1 -master
bond0 - private - 192.168.0.239
[code]...
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May 15, 2011
I recently just upgraded from humble Linux user to confused Linux admin of my own virtual Linux server. When I issue the ifconfig command I get following output.
Code:
venet0:0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:1.2.3.4 P-t-P:1.2.3.4 Bcast:1.2.3.4 Mask:255.255.255.255
UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
The WAN IP of the interface is not really 1.2.3.4 I just changed that IP for security reasons.What I am trying to figure out, is it possible to assign a private IP address to the same interface or can I only have one IP address per interface. I understand I have a mask of /32 so I am not going to be able to subnet the address to create any more addresses, so I assume I am stuck with the WAN IP (public IP) that I have, and just need to deal with it.
The reason I ask this is because I have been reading through several DNS/BIND tutorials/walk-throughs, and a lot of them specify setting up a intranet access with 192.168.1.1 address for the local DNS server, but since I am connecting to the sever via SSH I figure I do not need a private IP address.
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Feb 16, 2011
I have a linux system which is conencted to a corporate lan and it has internet access to it. But i don think that machine hs any static ip or DNS name. I am able to ssh to that machine within the lan but is it possible to ssh to that machine outside the lan using internet?
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Oct 19, 2010
i am investigating on solutions to trace a file deletion on a computer( Linux O/S).i also need to determine weither after a file deletion or download on a computer, the computer clock had not been modified. In case a file has been downloaded on a computer and then transferred to a removable device, i need to find out the file activity. i mean i should be able to tell that the file was downloaded and transferred to a device with possible specifications.
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Jul 13, 2011
We have bind 9.3 running on CentOS 5.2. We are able to do reverse lookups for the public IP's but not able to resolve to the private IP's on our network.
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Jan 11, 2011
We have to connect one PC in private network (campus) with other PC (mostly a modem in our case)in public network. Connection should be peer to peer like and we have to use C coding for establishing connection between this two systems. Is it possible if we use port forwarding or is there any other way?
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May 24, 2011
The facts are as follows:
1. I have at work a regular LAN with many PCs, each with a DNS-registered public IP. Therefore I am able to address each of these PCs by their fully-qualified names and, for instance, initiate ssh sessions to any of these computers just by typing "ssh <name_of_machine>" from a terminal.
2. Within the aforementioned LAN I have just created a private network with some clients, which access the LAN through a router (a D-link DIR-825). We have created this private network for many reasons, but most importantly because we need to guarantee that the hosts in this network will remain networked among them even if the LAN goes down for any reason (which unfortunately happens often). But we still need to have access to the hosts in the private network from the LAN.
3. I am able to define port forwarding rules in the router in order to access certain services on the private network's clients. For example. I am able to access (by ssh) hosts "H1" and "H2" on the private network from a client on the LAN by defining rules for forwarding ports "P1" and "P2" on the router's public IP to TCP port 22 on the private IPs of "H1" and "H2", respectively. Then I would access each of these hosts from the LAN by using:
>ssh -p P1 [ip.address.of.router] (for accessing H1) and >ssh -p P2 [ip.address.of.router] (for accessing H2)
4. The problem with the port forwarding approach is that it is not easily scalable. For instance, If I wanted to enable ssh access to each host in the private network, I would have to define a port forwarding rule for each machine, and then REMEMBER all these port rules when initiating a ssh session from the LAN in order to point to the right host. And the problem gets worse when considering more services in addition to ssh.
5. The ideal solution would be to be have a means for addressing each host in the private network individually, in much the same way in which I address the hosts in the LAN (which have DNS-registered names). For instance, in order to access hosts H1 and H2 as in the previous example, i would like to be able to just type
>ssh [name_of_host_H1] (for accessing H1) and >ssh [name_of_host_H2] (for accessing H2)
The bottom line:
I guess I can say that what I need is some kind of combined DNS-ing and routing that allows me to communicate with the hosts in the private network from outside of it in a transparent way.
The question is: what are any possible solutions for accomplishing this? I have searched the web and found stuff about things like VPNs, reverse-proxies and NAT servers, but I really can't understand if any of these could serve to solve my problem (BTW, isn't my router doing some sort of NAT-ing already? could I just add some DNS-ing in some way?)
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Jul 27, 2011
I run a server that is connected to several other boxes in a private network (192.168.0.0). I have had no problems previously, but upon a reinstall of Debian squeeze I have no connectivity to the private network: a ping of other addresses on that network fail. Ping and connection to outside world is fine. This box is configured similarly to another on this private network which connects successfully. I have quadruple-checked all my basic information. I post my ifconfig below of the malfunctioning device, then the ifconfig for equivalent nic on a box connected succesfully to the private network.
Questions:
1.Could it be a cable problem? (I don't see how since the cables have not been changed I do not believe since my reinstallation).
2. What about the difference in the last lines of eth1 below and eth2 of the successful box. Is it significant that the bad eth1 reads Memory:fc3a0000-fc3c0000
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Aug 13, 2011
I am running 11.04 with a dual boot of vista. I am also running virtualbox (downloaded from oracles site) I installed the extension pack from their website, I have added a new filter and I am in the user group but still virtualbox will not see the usb ports or the device plugged in. The reason for running virtualbox is if I can get the usb to work, I will then remove vista completely from my system and just virtualbox for the only two programmes that do not work in Ubuntu.
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Apr 22, 2011
So I bought an eMachine e250 from a friend of mine, and installed Backtrack on it. That worked fine, until I realised that I didn't like KDE, and decided to get the gnome-based Gnacktrack (based on Ubuntu 10.10, so I'm fairly sure they work the same). I also have a harddrive from an old laptop that I've scrapped with Ubuntu 10.4 that I run in the laptop, and fpr some bizzare reason, neither operating system is able to detect the wireless card. It worked fine with Backtrack (based on Noppix I believe), and I'm curious as to why the wireless card hates Ubuntu so much. I know that it's unable to detect the wireless card because on start-up it says "Unable to detect WMID device". I even added the wireless card from my scrapped laptop to the laptop, and that NIC was detected just fine. (though I can't use it because the antenna won't reach the slot for the secondary NIC)
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Mar 14, 2010
I have had this issue for a while now but never really messed with it enough to try and fix it..
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May 8, 2010
im using acer ao532h and just install lucid dual boot with w7. I have problem this mesej coming out when booting after grub then blank screen direct to login screen.
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Jun 20, 2010
Ubuntu 8.04 used to detect my display resolutions fine, but this version is unable to detect my max. resolution and I get lock-ups when I use the live disk without the "nomodeset" option.
My display config is:
lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)
Detected resolutions (with nomodeset option):
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 2048
VGA connected 1024x768+0+0 (normal left inverted right x axis y axis) 267mm x 200mm
800x600 85.1 + 85.1 72.2 75.0 60.3 56.2
1024x768 60.0*
832x624 74.6
640x480 85.0 75.0 72.8 75.0 59.9
720x400 85.0 70.1
640x400 85.1
640x350 85.1
The resolution 1152x864 is missed. This was a bug I had earlier reported on Intrepid (9.04).
My OS:
Linux ubuntu 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010 i686 GNU/Linux
I downloaded this 2 days ago. Also I was stumped at no kernel messages on any virtual terminal! How can I enable the printks?
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Aug 3, 2010
my last hard drive had bad sectors so we got a new hard drive from newegg. this is a brand. new. hard drive. never been formatted before. so i started with the windows setup disc to get it to partition the drive and give kubuntu (working off 10.04 its ordered from canonical) something to work off. it still didn't work. so i got gparted on here to see if it could - im running off the live cd - do anything with it and i find that kubuntu doesn't even recognize there is a hard drive there. i got into the terminal to check the sudo lshw -C disk thing and it swears 'C' is my cd drive.
My bios is also as high as it can go, they stopped making my board. so. any ideas? i cannot install windows as i have lost the key so getting this installed and fixed has to be done through ubuntu on a live cd.
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Mar 30, 2010
Ubuntu wont detect my screen (mag bf22) correctly..that causes poor resolution (1152*864 max) my screen is able to at least a 1600*1200 resolution (witch i use in my windows boot ) is there anything i can do in order to fix or increase the resolution ?.. i have already installed the drivers correctly
asus p7p55d
intel core i5 750
nvidia geforce 9500gt
wd640GB black caviar
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