Ubuntu :: Unable To Block Packet Just Captures Them / Solve It?

Feb 19, 2010

I m trying to develop an application to block packets(using c++)(like a firewall).
i have tried pcap library , but it doesn't block packet just captures them.

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Ubuntu Networking :: Send The Keys Or Value As The Packet Data (content Of The Packet) In Ns-2 (for Wireless Environment)

Jul 12, 2010

I am the new user to ns-2. I would like to know is it possible to send the keys or some value as the packet data (content of the packet) in ns-2 (for wireless environment).

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CentOS 5 Server :: Authenticate/Decrypt Packet Error: Packet HMAC Authentication Failed

Sep 17, 2009

I got a problem with my CentOS server. Somebody told me OpenVPN Requires different changes inside my firewall settings. That could be the problem why openvpn wont load..I receive this error on my CentOS panel when im trying to connect into the centos openvpn (with my winxp pc):

Thu Sep 17 20:31:36 2009 TLS Error: incoming packet authentication failed from 84.xx.62.122:2622
Thu Sep 17 20:31:38 2009 Authenticate/Decrypt packet error: packet HMAC authentication failed
Thu Sep 17 20:31:38 2009 TLS Error: incoming packet authentication failed from 84.xx.62.122:2622


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Ubuntu :: Unable To Upload Pictures To Photobucket / Solve This?

Nov 8, 2010

I've run into a problem with my Photobucket account in that the dialogue does not appear in the upload box. Can anyone with an account please try, maybe something has changed on their site, as I'm sure a week or so back it was working. Failing that what might I have not set up correctly?

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Software :: Unable To Apt-get Dbus-x11 In Ubuntu Fiesty / Solve This?

Apr 9, 2010

While installing network-manager in fiesty, I had some problems. THEY told me I also had to install dbus-x11, but apt-get was unable to get the package. (Couldn't find package dbus-x11) My sources.list file seems in perfect shape

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Networking :: Sudden Severe Packet Loss/ Unable To Connect DNS To AP

Aug 23, 2010

I am running Linux Mint Isadora 9 and recently installed a wireless USB adapter. After installing RT3070 drivers for my RT2070 card I got everything working and life was good. Now, all of the sudden I am having a world of problems connecting to the internet. I can connect to my AP fine, but I cannot access the internet. If I attempt to ping my AP by IP address I get severe packet loss. I cannot ping my AP by url [URL] at all so Im guessing there are some DNS issues as well.


poe jk # lsusb
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 003: ID 046d:c045 Logitech, Inc. Optical Mouse
Bus 003 Device 002: ID 413c:2005 Dell Computer Corp. RT7D50 Keyboard


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Networking :: Unable To Route Traffic Based On Packet Content

May 7, 2011

My linux machine is connected to the outside internet, and I have a minecraft server running on an internal machine ( Right now, I am forwarding port 80 on the linux machine to, which is working.

iptables -t nat -I PREROUTING -i eth0 -d -j DNAT --to-destination
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -m state --state NEW,ESTABLISHED,RELATED -j DNAT --to


I want to filter out the GET/POST requests and forward them to port 8080. I can't seem to get that working.

I've tried this:

iptables -A INPUT -d -p tcp --dport 80 -m string --algo bm --string 'GET' -j REDIRECT --to-ports 8080

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Ubuntu Networking :: Unable To Connect To Wireless Network / Solve This?

Apr 13, 2010

I have a Dell Inspiron 1525. I am unable to connect to wireless networks. I have a fresh installation of Ubuntu 8.04. I have installed Ndiswrapper (ndiswrapper-utils_1.8-0ubuntu2_i386.deb) and the GUI for ndiswrapper. The ndiwrapper GUI reports that the hardware was not found. Yet I am able to connect to the wlan using Windows.

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OpenSUSE :: Unable To Download Repositories / Solve It?

Aug 20, 2010

Just reinstalled kde 11.3 on second hd. Everything seems to be okay except for getting additional repositories. Under yast I get the message unable to download list of repositories or no repositories defined. Any ideas on what I can check?

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Software :: Unable To Unrar Archive / Solve It?

Feb 9, 2010

I've downloaded some torrents, and someone CONVENIENTLY made them a multiple file archive instead of a single file.

I've tried unrar -x <filename>-part1.rar, which it says it completes, then I don't see the file. What do I need to do? WinRAR usually decompresses them just fine, but on Linux is where I have the problem.

More importantly, why on Earth would anybody do this?

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Ubuntu :: Unable To Upload Anything - 6 Packets Transmitted, 6 Received, 0% Packet Loss, Time 5007ms

Feb 21, 2010

i made a video and i wanted to put it on my myspace(video upload) and it justs fade to grey and becomes unresponive. that it goes back to normal but no progress. so then i tried going to image shack and uploading a picture. can't do that either. tried mediafire, videos, vimeo, nothing.

so i tried on my desktop(desktop running 9.10 32 bit. laptop(the first one i tried) running 9.10 64 bit. it didn't work on that either. i know it's not my isp because it works on my ps3(no ubuntu). not my firewall and tried without without my router. didn't work either. i tried upgrading flash on both of them and on my desktop i can upload some pictures to imageshack now. nothing else though. i have tried using both firefox and opera.

i pinged yahoo and this is what i got:

6 packets transmitted, 6 received, 0% packet loss, time 5007ms
rtt min/avg/max/mdev = 72.732/73.437/75.024/0.761 ms

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Networking :: How To Resolve Packet Loss - Users Are Unable To Login To The Workstation

Apr 29, 2010

I have linux workstation. All users home directories are NFS mounts.

Since I am facing packet loss issue users are unable to login to the workstation.

I found the packet loss using mtr from workstation to filer.

Matt's traceroute [v0.54]


What are the things I have to check to resolve this packet loss.

Following is the ethtool out put of the workstation

Settings for eth0:

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General :: Unable To Install Software From Terminal Or Synaptic Packet Manager

Feb 9, 2010

i m not able to help any software due to my proxy settings. my proxy block all the download links. not able to install software from terminal or synaptic packet manager

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Ubuntu :: Unable To Gain Access To Libraries I Need To Install Printer / Solve It?

Dec 21, 2010

I am running ubuntu 10.10 on a sony vaio f115. I am trying to install the printers for a brother mfc5460cn. I have used apt-get and aptitude, I have used sudo and sh all to no avail. I always get the same messages: cannot lock administration library (var/lib/pkg/) (11 temporarily unavailable) and cannot get lock/var/lib/dpkg/lock - open (11 temporarily unavailable)
How do I gain access to these libraries?

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Networking :: Unable To Setup Dsl Connection In KDE Fedora 15 / Solve This?

Jun 19, 2011

I installed the Kde desktop and i'm unable to setup a broadband dsl connection
i have done the settngs in network manager gave password username service name etc.
but the option for connection doesnt appear
the connection works properly in windows as well as gnome 3 desktop but not in kde

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OpenSUSE :: Unable To Change Login Screen (KDE) / Solve This?

May 20, 2010

Command '/usr/bin/kcmshell4 kdm --lang en_US' not found

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Networking :: Unable To Port Forward To Ftp Behind My Firewall / Solve This?

Sep 28, 2010

I can't port forward to ftp behind my firewall, I tried several attempts but none worked.

Can anyone help me solve this?

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Software :: Unable To Load Module I810 / Solve This?

Mar 18, 2010

I am using ubuntu 9.10,when i bootup my system, it gives the error that "You are using very low level of grapics and system is unable to load module i810;
solution how to fix it

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Ubuntu Networking :: Wireshark Can't Save The Captures

Feb 8, 2010

I've run into a sort of catch 22.I installed wireshark via apt-get on my Eee 1008HA, but when it is launched, it does not allow any capture interfaces. I think this is because the shortcut created in my applications paneldoes not start it as root.So I went into terminal, typed in "sudo wireshark" and it popped up, as root. I was then able to capture on my wireless interface. However, if I try and specify my home folder as the location for the capture to be saved, I get an error that permission was denied, which seems odd since the process is running as root and should be able to do pretty much whatever it wants. How can I get wireshark set up so I can both capture _and_ save the .pcap files I generate? I'm running karmic koala, the full output of uname -a is: Linux ruckus-laptop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux.

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Ubuntu :: 9.10 - Garbled Screen Captures With Compiz

Apr 29, 2010

I am trying to use screen captures in compiz but they are garbled and unusable. I am running ubuntu 9.10 on a dell latitude D520. I attached a copy of one of the screen shots.

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Ubuntu Networking :: How To Configure NIC For Wireshark Captures

Jul 2, 2010

I have an ubuntu PC with 2 nics, 1 for the internet, the other one should be to connect other computers an analyze the network traffic with Wireshark. How do I configure this 2nd nic to achieve this.

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Red Hat / Fedora :: Unable To Start Tftpd Service After Starting Xinetd / Solve This?

Nov 9, 2010

Unable to start tftpd service after starting xinetd

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Software :: Unable To Play Mp3 Files And Install Vlc - Players In Fedora 8 / Solve It?

Dec 19, 2008

I normally tried yum lock for installing players like
yum install xmms xmms-mp3
but it starts and when
starts download it stops after sometime & try another mirror &
finally never install
what is the problem?

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Ubuntu :: Unity Alternatives - Can't Use Alt-Tab To Switch To Apps As VirtualBox Captures The Keys For Windows

May 3, 2011

When working in an XP VirtualBox I can't use Alt-Tab to switch to my Linux Apps as VirtualBox captures the keys for Windows. So I tended to make a lot of use on the Application list on the old System Tray/Taskbar. I could click on the application's entry in the taskbar and that application would come up. When I needed to return to the Windows App, I clicked again and the application would then minimise so I can see the Windows app. Also I have been using the SUPER button in conjunction with 'E' to raise the Home Directory (just to keep it consistent with Windows).

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Ubuntu :: Unable To Mount Root FS On Unknown Block (8,1)?

Apr 6, 2010

I installed a update on a driver now i cant boot ubuntu. i select ubuntu,then ubuntu generic then i get this message. [ 1.772486] Kernel Panic -Not syncing :VFS: Unable to mount root FS on unknown Block (8,1)

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Fedora Hardware :: Processors Are Not Active And There Is No An Obvious Process That Captures Cpu?

Apr 25, 2011

I just install fedora 15 (64bit) on my Toshiba Satellite L550 laptop.I realise a problem with my fan. It is ON almost allways (90% of the time my laptop is on).My processors are not active and there is no an obvious process that captures my cpu.I had the same problem on fedora 13 and 14 too. I hoped that they solved it in 15.... but... this was not true . When I run it from inside Windows 7 (from a Virtual Machine) it works fine! I was searching to the internet to find a solution (for days) with no luck!Is it a compatibility problem between my CPU and Linux kernel?The problem is very annoying indeed and prevents me for using fedora as my default OS with or w/o A/C.I must say that the same problem exists in ubuntu 10 too

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Ubuntu Multimedia :: Video Capture - Captures Maybe 2 Seconds Of Movement Then Goes Black And / Or The Image Freezes

Mar 11, 2010

I have an Acer Aspire One Netbook, and I have the Ubuntu 9.10 Netbook Remix installed. I have tried using Cheese to capture video and it captures maybe 2 seconds of movement, then goes black and/or the image freezes. I can take photos just fine, but video capture seems to be impossible. Any help?

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Ubuntu Installation :: Unable To Mount Root FS On Unknown Block

Feb 1, 2010

Yesterday after new update I got Kernel panic - not syncing: VFS: Unable to mount root fs on unknown - block (8,2)

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Ubuntu Security :: Unable To Block Icmp Requests Permanently

Apr 30, 2010

i've tried blocking ping requests with iptables.. and it didnt work Quote: iptables -A INPUT -p icmp --icmp-type echo-request -j DROP

also tried editing sysctl.conf.. which worked perfectly but after i restarted the system i was able to ping my ubuntu machine from my lappy here is what i added to sysctl.conf and then executed it with sysctl -p

Quote: net.ipv4.icmp_echo_ignore_all = 1 here is another atempt to block.. this one worked too... but again after the restart i was able to ping my machine.. Quote: echo "1" > /proc/sys/net/ipv4/icmp_echo_ignore_all

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Ubuntu Installation :: Unable To Mount Root Fs On Unknown-block (0,0)?

Aug 11, 2010

I have compiled a new kernel 2.6.35 and I can not boot because same error : kernel panic - Unable to mount root fs on unknown-block(0,0). i have motherboard ga-p55a-ud3r and controlleris sata .now i use channel in ACHI mode. when i change it in ide mode it boots but in low graphic mode. then i have compiled modules again with support ACHI_SATA mdoe in xconfig of kernel. but same error occur.

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