Security :: Cryptography On Package Installers ?
Jan 18, 2011
I would like to know if provisions for cryptographic algorithms, especially things like digital signature of packages/applications etc are a native feature of any linux package installer/package manager.
Another question is: Do all linux based systems natively support cryptography? if yes, what engines do they use? Do they all use openssl or do they use high level java based engines like Harmony(Apache) or Bouncy castle?
I have an ubuntu 10.10 and I know openssl support is already provided. However I want to know if any system level program actually uses it or not.
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Jul 24, 2011
I am very new to encryption. Right now I am making certs and keys using RSA public-key cryptography. Is RSA the best? What other public-key cryptography <?> is there to use? Is <?> a cipher or algorithm? Whats the difference?
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Feb 21, 2010
Question: The USA forbids the export of secure cryptography. NSAKEY has already been discovered in the Windows cryptograhic API. Since the Linux-Kernel is hosted in the USA, how secure is its cryptography ?
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Mar 10, 2011
Any idea how one can accomplish this? Oh, and is there a GUI tool that can help with the process?
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Dec 22, 2010
We know that each OS has it's own installer which takes care of installation process. The first step in any installation process is detecting the system platform architecture and hardwares such as CPU, RAM, VGA, Mouse, Keyboard, Hard Disk,... so it can act based on system configuration and do a clean install, now my question is: "How an installer can do this for the first time?".
I another word: "How lspci/hwinfo/prtconf/kudzu/... can gather those amount of information about hardwares?" (Yes! all of these commands will read some files for gathering those informations! but I need to know who and how created those files)
1- Note that, if we have a binary which compiled for a X86 architecture then it won't work on a Sparc system!
2- OpenSolaris can do that!
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Jan 7, 2010
Such as here [url] this is the debian installer with a kernel 2.6.26 for squeeze.
Where are the archive on debian.org for those boot.img.gz images, with all different distro / kernels?
[url]
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Oct 27, 2009
I have a Biostar TA785GE which as I understand it, has a Realtek 8111DL on-board.
Booting with F11 32-bit DVD, and the F12 Live CD crashes before any user input, with indecipherable text on-screen (text mode, not X11).
Symptoms were the same with the Fedora 11 32-bit installation DVD, the Fedora 12 Live 32-bit CD and the CentOS 64-bit install DVD.
Booting with "linux text" mode (w/CentOS DVD) shows a kernel panic in ":r8169:rtl8169_init_one+0x369/0x9d4" from "pci_device_probe+0x100/0x180". I'll have to shutdown again to try the Fedora CD/DVDs, but if there's a different panic I'll post that tomorrow.
Disabling the on-board NIC allowed the boot to proceed, and get as far as detecting the hard drive partitions (where I stopped it since Ubuntu is installed).
Ubuntu 9.04 Workstation(Desktop?) install DVD worked fine, and I've installed it and am using it to enter this.
From Ubuntu 9.04 on this hardware: "uname -r" shows
Code:
Code:
Code:
Code:
So, my question: if I disable the NIC and install (alongside Ubuntu), will I be able to get the 8111DL working with a Fedora kernel?
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Mar 27, 2010
Please take a looka at:
Code:
hihihi100@hihihi100-laptop:~$ sudo apt-get install tor tor-geoipdb
Reading package lists... Done
[code]...
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May 30, 2010
I can't seem to find the setools-gui package in the repo, and I do not see a deb package for it.I attempted to use alien to install the rpm, but that didn't work. Any idea on how to get the GUI to install?
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Jan 15, 2011
i have fedora distribution running in my virtual machine. I installed sectool- .9.5-1.fc13.i686.rpm & sectool-gui-0.9.5-1.fc13.i686.rpm (the gui of the tool)
Then i modified the file /etc/selinux/conf to change the selinux from enforce to disabled (so the test can be run) the prob now, each time i try to lunch the package to get a test result... it takes so long time without result even if i choose 1 test only as u can see in the attached file. I've been waiting for more than 1 hour with no result
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Jul 21, 2011
I'm interested in GNU/Tiger as recommended by a security guru I know. I did apt-cache search and located the package tiger:Code:tiger - Report system security vulnerabilitiesI also checked the ubuntu web-based package search and found tiger there too along with things like this signed message.Using apt-cache policy, I see this package is universe. I'd like to check the signature/cert/keys of this file before running apt-get install on it to see if it is acceptable given my current apt keys. Can someone explain how to do this?Also, what happens when I try to install a package using "apt-get install" and that package or one of its dependencies is:* unsigned* signed, but not by anyone whose key resides in my apt keyring?
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Mar 12, 2009
I'm logged in as root and want to run Add/Remove Software (Package Installer) but get the message telling me
Code:
Running graphical applications as a privileged user should be avoided for security reasons. Package management applications are security sensitive and therefore this application will now close.
How must I install applications? Surely the world is getting paranoid with all this hackers and viruses, because with every new version O/S, the security features gets more and more; up to the point that you can't fricken do and play around with your pc as you would.
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Jan 2, 2011
I was planning to re-install ufw. When I selected it and then install in Synaptic Package Manager a box appeared saying ufw was not authenticated.
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Nov 26, 2010
The iptables has every rule set correctly, the users in the subnet works great, but I have the following issue.every user connect to a mysql running on the internet through the port 3306, the forward and masquerade do the job. Now I have a user in the outside, and he wants to connect to a mysql in a certain machine (Not the gateway), prerouting rules solve my problems, but all the packages from the inside users goes now to that certain machine. I would like something like if the package passed trough masquerade don't pass trough the prerouting rule, and if it come from the outside (Not a package that come from a petition from the inside) pass trough the prerouting rule.
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Feb 27, 2011
I have a Cent OS dedicated server, not sure what version though as I'm new to Linux. How do I find out what version I have? Is there an anti virus or security package that I can install on my server which can use Cron Jobs to do a scan every 12 hours.
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Sep 16, 2010
A day ago I finally got around to upgrading the PackageKit installation that had been sitting for a week and a half, so I found a new upgrade for sudo available - the one that gives the sudoreplay command, I forget which version number it is exactly. When I try to use the sudo command I get this notice in my terminal:Code:Can't open /var/db/sudo/me/1: Permission deniedI didn't get it before. What do I have to do to make it open? I'm using SELinux in enforcing mode if that helps.
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Jan 8, 2010
I need to install the following dependencies for synspam on Ubuntu 9.10 karmic server:
Code:
sudo aptitude install nfqueue-bindings-perl libsys-syslog-perl libappconfig-perl libnetpacket-perl libnetaddr-ip-perl
dpkg -i synspam_version_all.deb
Of these, only libnetpacket-perl is not packaged for Ubuntu 9.10 karmic.
Is this functionality present in another 9.10 package with a different name? 10.04 Lucid does have the package: [URL]
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Feb 14, 2011
Still I am asked to package a war file as an RPM package. That is an unusual RPM packaging(To me). If you guys could guide me I have a war file inside a folder, that folder is inside a tar file as a SOURCE for RPM package. The structure is like below.
[Code]...
I simply want that the war file from sources is transferred to the web app of my tomcat server through RPM. I try to package it as an RPM, but its always giving me errors in %build stage. When I try to remove %build from stage from the spec file, then it says command missing.
My system details are:
SUSE Linux Enterprise Server 10 (x86_64)
VERSION = 10
PATCHLEVEL = 1
LSB_VERSION="core-2.0-noarch:core-3.0-noarch:core-2.0-x86_64:core-3.0-x86_64"
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Nov 4, 2010
when I try to install a package, I've the message The following packages have unmet dependencies:package-xy: Depends:lib-something (>= version_number) which is a virtual package.
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Feb 3, 2011
I am following this guide to installing eclipse via terminal command-line on Linux. However, this seems to be happening lately with all the packages I try to install..I checked the Synaptic Package Manager and reloaded and rebooted the computer, but to no avail.
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Aug 3, 2011
I have a problem when installing this package through synaptic package manager. this is :
libpng12-dev
the error is:
W: Failed to fetch http://security.ubuntu.com/ubuntu/po...tu2.1_i386.deb
404 Not Found [IP: 91.189.92.167 80]
my distribution is ubuntu 10.4.
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Apr 5, 2011
Is there anyway to show package size that comes up in the search so you don't have to apt-get install package individually and wait for the installation initiation and then reject to install after it gives u the [y/N] confirmation thing?
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Sep 3, 2010
Am I the only one who gets this on gnome everytime I start up package manager or package finder in 11.3?
System management is locked by the application with pid 6890 (/usr/sbin/packagekitd)
I literally have to kill -9 pid everytime I run it. What is going on here?
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May 26, 2010
I want to install kernel package by this command sudo apt-get install kernel-packagebut it gives me the error :Package kernel-package has no installation candidate
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Feb 24, 2010
Is there a way to determine which libraries a package needs before installing the package itself?
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Jun 20, 2010
I just finished installing a dual boot XP/Ubuntu 10.04 LTS for desktop about half an hour ago, and it's my first experience with a Linux OS. Now that my *complete idiot noob* flag is flying, I have an error I think I need to report:An error occurs with the Package Manager, I get this message when I try to run it, and when Ubuntu boots:
E: Encountered a Package with no Package: header
E: Problem with MergeList /var/lib/apt/lists/
us.archive.ubuntu.com_ubuntu_dists_lucid_restricte d_binary-i386_Packages
E: The package lists or status file could not be parsed or opened.
This usually means that your installed packages have unmet dependencies I tried to download and install Chrome, and it came up with a similar error.
Is my install corrupt/incomplete or something? My setup is a P4 2.4Ghz, 512Mb RAM, onboard graphics, wireless internet and the HDD is 40GB, split into 2 partitions, and my Ubuntu Partition is 10 GB. I'm running Ubuntu 10.04 LTS distribution, and the other OS is Windows XP Professional SP3.I installed Ubuntu by using the Wubi installer.
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Oct 2, 2010
I want to install CmapTools in my desktop, which runs v.10.04. I have downloaded the .bin file from their site.Is there a way to install it using Synaptic Package Manager?
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Jul 28, 2011
I originally attempted to compile and install xmonad package by package, and the end result was this:
Code:
$ xmonad /home/adx/.xmonad/xmonad-x86_64-linux: executeFile: does not exist (No such file or directory)
X Error of failed request: BadAccess (attempt to access private resource denied) Major opcode of failed request: 2 (X_ChangeWindowAttributes) Serial number of failed request: 7 Current serial number in output stream: 8 I figured I left out a flag on the make file or something, so I tried the slackbuild packages next; however, the same error was present at launch.
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Feb 3, 2011
I was building yesterday the boost-1.45.0 RPM package for CentOS 5.5.
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Mar 15, 2009
Sometimes i have on some magazines or Internet Zip packages that are the answer of what i am looking for.
Wich tool and how can i do it? c Well, i am in position to say that i had downloaded from Internet or located the package in the Cd or DVD that comes with the magazine.
But now comes the big question. How can i put this package ( install) on my distro ???
Do i have to be a normal user or should it be root or su (superuser) ?
The packages that come with the distro is easy, because i select them and everything is done
As i told before, maybe this is a silly question, but i simple don't know how to install them and i need some of them to leave MS for good.
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