CentOS 5 :: Live USB Strange Modified Binaries?
Mar 10, 2011
I have CentOS 5.5 running as a desktop, on Live USB with persistent overlay. It's been working great since January. However yesterday I noticed something strange. Almost all the binary files, including those under /bin, /sbin, /usr/bin, and /usr/sbin, have been modified, compared to the originals in squashfs.img (I mounted squashfs.img and did a "diff -r" comparison). The timestamps all remain the same, but the sizes of the binary files have been increased by a typical 1 - 3 KB.
The system has never been updated, other than a few minor package installations via yum. It's running behind a firewall with no services except an SSH server on a non-standard port. Checks on log files etc. didn't find anything suspicious, and chkrootkit turned up nothing.
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May 28, 2011
I am trying to install a minimalistic centos 5.6 VM.I have pulled the necessary RPMs from the centos website, using the following command:
yumdownloader --disablerepo=* --enablerepo=CentOS-5.6-x86_64
--destdir=/tmp/transitRPMs/ --installroot=/tmp/transitRPMs/ --resolve kernel
vim-minimal wget yum dhclient grub rootfiles openssh-clients openssh-server sysklogd passwd star attr[code].....
I do not see any 32 bit packages in the /tmp/transitRPMS directory, which good, and that is is what I expected / want.I have also downloaded the repodata and images directory from one of the CENTOS mirros, from the 5.6 directory.I am using the netinstall CD to kickstart the VM and using my local HTTP repository , which I created using the RPMs pulled from the yumuploader command.When I try to install the VM, after the disks are formatted, the installer starts asking for missing i386 or i686 packages. This is happening in both interactive installs, where I select absolutely no package; and also in the kickstart installs, where I have specified @core for the packages. I am unable to understand this behaviour. It was not so in CENTOS 5.5 x86_64 bit. I do not want to install 32 bit packages on my 64 bit machine.
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Feb 20, 2010
I am searching for a program which may be used in order to display a list of modified (non-distribution-default) configuration files. For example, assume we have installed package "example-utility" which uses /etc/example-utility.conf as one of its configuration files. The package provides a default configuration file upon its installation. Assume we have modified /etc/example-utility.conf according to our needs. This file should be included in the listing produced by the program I am looking for.
If such a tool does not exist, I would like to create it. However, I am new to RPM-based systems, and, as such, I am having difficulties finding the necessary documentation. Should I be reading the yum source code? Is there some sort of document describing the package database on RH/CentOS/etc. systems and how 3rd party applications are supposed to work with this database?
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Jun 22, 2009
I recently reinstalled CentOS, and after a ton of updates, I'm just about finished getting things set up again. However, today I've noticed this really interesting message whenever I run yum. Just for demonstration, I'm going to remove gnome-screensaver, since I prefer the Xscreensaver anyway. This is the complete output, with the strange message highlighted;$ sudo yum remove gnome-screensaverLoaded plugins: fastestmirrorSetting up Remove ProcessResolving DependenciesThere are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them.
--> Running transaction check
---> Package gnome-screensaver.i386 0:2.16.1-8.el5 set to be erased
--> Finished Dependency Resolution
[code]....
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May 18, 2010
Upgraded two systems yesterday without problems but now have a strange problem with a third. The upgrade went well I think but the kernel hasn't upgraded. Its installed and grub.conf has it listed as the default but after a reboot ( many times now ) the kernel version is unchanged.
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Feb 10, 2011
I am currently seeing strange files in the folder structure on one of my servers * CentOS release 5.5inal)* #1 SMP Tue Jan 4 17:11:58 EET 2011 x86_64 x86_64 x86_64 GNU/LinuxThe files in question are as follows : -rw-r--r-- 1 root root 117 Feb 3 16:57 -z present in too much random directories when i list a file structure even in a directory i have not been in there is such a file in it.Has anyone ever encountered this type of factor and if possible i would like some advice on dealing with the removal of these files and rectifying the settings that are making them / creating them.
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Mar 17, 2009
I was checking my server and found a /net directory with nothing visible inside. The mysterious directory is /net and I checked to make sure nothing was mounted to it:
[root@mysql /]# mount
/dev/sda1 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
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May 15, 2010
I am running Ubuntu 64-bit and I downloaded a 32-bit binary. I tried to run it in the shell using ./file but zsh said that it did not exist. However it shows up in nautilus and ls. Is this supposed to happen?
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May 24, 2010
After upgrading to Lucid I can compile but not run binaries from the console. I have build-essentials installed. When I try to run a compiled program I get this error:
bash: .: ./main: cannot execute binary file
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Feb 22, 2011
I'm trying to debug why I cannot run any java on my RHEL 5 box. Right now I'm just trying to run an example .jar file I got from
[URL]
I'm not a java developer, just an end-user.
[xxxxx@xxxxx Desktop]$ cat /etc/redhat-release
Red Hat Enterprise Linux Client release 5.4 (Tikanga)
[xxxxx@xxxxx Desktop]$ uname -a
[code]....
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Apr 13, 2010
Are there gcc and g++ binaries available for download anywhere? I can only seem to find sources, which I can't get to build (trying to upgrade to a newer compiler).
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Jan 17, 2011
I just got F14 installed on my pendrive with persistent data and I want to be able to play DVD's, .mp3, .avi etc. So of course I try to download vlc, but I have no internet connection on F14 and can't find any simple, non-RPMfusion way to download the binaries (I had an awful experience with the source a while ago). Does anyone know where I can get them?
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Jul 8, 2011
I recently installed FC15. When I try to execute a binary file, it shows permission denied message even when I login with the root user through "su -" command. It also give me the same message when I try to run a python script. How can I execute binaries in FC15?
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Jan 3, 2010
Could anyone suggest the best or a good news reader for binaries?
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Jul 21, 2010
I am new to Linux. Thanks in advance for correcting my misunderstanding and answering.
I would like to modify the gdm for testing purpose. To get started, I first get the source code of gdm (using apt-get source, or download the latest version from official gdm website) and compile it without any modification. Then I replaced one of the binary file of gdm. However, it resulted in "Ubuntu is running in low graphics mode" error.
My questions are:
1. why simply replacing the binary did not work?
2. I think it is possible that the way I configure/compile the program wrongly. So, is there a way to know how those programs are compiled in the distribution?
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Jul 21, 2010
I have no real LINUX system experience and therefore the company has tasked me to get a VMware Appliance running in which they can build their product.
The product runs on Red Hat 7.2. I have attempted many times to get Red Hat 7.2 installed on VMware player. It always fails when I get to Xwindows. I need Xwindows as the company is going to use NetBeans 6.9 for development.
I downloaded an Ubuntu 10.04 Appliance, which runs fine.
The idea is to build the product on the Ubuntu and run it on the Red Hat target.
All systems are x86 platforms.
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Aug 27, 2010
Looking for netpbm binaries for 686 Linux. Found the netpbm binaries to the gallery project, but they don't have the full netpbm library. I came across [URL] but I think that needs csh which I don't have.
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Jan 24, 2010
Does any one know some links to download the gcc binaries?Noted that it's the "binaries".
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Nov 5, 2009
The program tripwire suggest a reinstall in single user mode before you set up its database. So you can be sure there is nothing scary on the computer to start with.I've tried doing this by a rather crude and direct method
Code:
for i in `cat /home/lugo/listOfInstalled.txt`; do apt-get install --reinstall --yes "$i"; done
[code]...
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Sep 17, 2010
I have some binaries running on my server. I want to make a script to kill the binaries.
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Feb 8, 2011
I am a newbie in writing unix scripts: I have a file with a list of arguments like:
./a arg1 arg2 arg3
./b arg1 arg2 arg3
.
.
.
./n arg1 arg2 arg3
But these binaries (a,b,..etc) are in a different sub directory from where the above file is located. How do I write a script that will pick up each line from the file and execute it.
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Mar 16, 2010
I say to remove access to MOST of these SUID binaries? do they all need this power? what i want to do is minimize access just incase one of them gets an exploit(as ive already done for apache SuEXEC)
[Code]...
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Sep 3, 2010
I am trying to compile certain Linux general utilities like ls, lsof, ping, netstat with static linkers and not sure how do that. Does any one aware how to compile the application with statically rather than dynamically.
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Jun 13, 2011
I need to debug "ls". I downloaded coreutils and compiled them in debug mode."ls" uses readdir() kernel API to fetch files/directories from a file system. readdir() fetch data from any file system (suppose FAT or ext3).I have debug version of FAT/ext3 and installed, I also have debug version of coreutils (ls) as well.Now I want to debug from "ls" to "FAT/ext3 readdir()".How to do that?
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Jan 10, 2010
I'm trying to write a slackbuild for doing a slackware package from the binary distribution of scilab.org.If you want to test it, it's here
[URL]
there's also a slack64 package made from the slackbuild.to use the slackbuild you have to download your file distribution in the same folder from here [URL] and then you have to launch it like this
Code:
ARCH=x86_64 PKGTYPE=txz TAG=custom ./scilab.SlackBuild
available archs are i686 and x86_64
EDIT: edited build script to install things in /opt. updated package.
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Mar 22, 2009
is it possible to installed centos onto my flash drive and then run it from within windows without having to install anything on the host? this is because i prefer to program in linux however we only have xp on the university machines so i need to run it from a usb without anything being installed on the host?
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Nov 20, 2014
I am trying to build architecture specific binaries of gtk-sharp2. So far I have been unable to get gtk-sharp2 to build even without specifying a specific architecture. I got the source with apt-get source gtk-sharp2 and attempted ./configure, make, but it fails to build with the error message:
Code: Select allNo rule to make target 'thread.c', needed by 'thread.lo'.
I've also tried downloading the source directly from the mono project [URL] ...., but when building it fails with
Code: Select all#error "Only <glib.h> can be included directly."
This site [URL] .... provides a patch to fix the error, but when I applied it I got the same error.
I think the Debian version applied the patch correctly, but for some reason I still get that other error message.
These message outputted by configure may point to the problem:
"checking if gcc supports -fno-rtti -fno-exceptions... no"
"./configure: line 12920: enable_msi: command not found"
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Jul 13, 2011
Ive looked and ive seen many tuts on how to do this but ive never seen a specific answer to my problem.
Specs:
-Kubuntu 11.04
Problem: every time i use KPackageKit to try to install something it always tries to install sun-java6-bin which is already installed. ive added repositories, ive used restricted-extras, ive done the update and installs in terminal. java works fine for me in the browser and for terminal commands. i have set sun-java6 as the default java and updated it again. the error code is: Code:
subprocess installed post-installation script returned error exit status 2. i dont know what to do. all my installations fail. and i cant do anything. i hope ive provided ample information.
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Apr 1, 2010
It seems strange to me that there are so few newsreader programs for Linux that are good for posting binaries, if they do it at all. For a community with such an ethos of sharing, there sure are a lot of "grab"-only newsreaders!
I have used newspost a lot in the past, but I encounter fatal errors when connecting through stunnel, as I now tend to do, and development seems to be dead with that program. Can anyone recommend any other program - console, X, whatever - that will post multipart binary files?
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Jan 21, 2011
I installed an Oracle-provided RPM that installs a library, let's call it libUSEME1.0, into /usr/lib/oracle/yada/yada2/libUSEME.1.0. I then have an RPM (perl-DBD-Oracle) that depends on libraries from the Oracle-provided RPM. (For now, let's say it depends on libUSEME.1.0)
I then try to do both a 'rpm -ivh' and a 'yum localinstall', on that perl-DBD-Oracle RPM. However, yum still complains that this dependency is missing. The only semi-useful post I could find from Google shows that setting things like LD_PRELOAD won't change yum's mind - it still says the dependency is missing.
What is the proper way to demonstrate to yum that you have already installed a library on which an rpm (or package) depends?
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