General :: Corrupt Oracle Data Block Manually Using Dd Command From Sysem?
Mar 1, 2010How can I corrupt oracle data block manually using dd command from Linux?
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General :: Detect DoS Attacks / Manually Block IP On Ubuntu?
Sep 14, 2011I have a VPS with Ubuntu. I host a small website (~10 visitors at the same time). Sometimes the website starts lagging. It lags so bad that my SSH connection starts lagging too. Running top says that 2 instances of apache2 take up 50 %CPU each.
I assume this is a DoS attack. I've copy-paste installed a few iptables scripts that made sense, but this has not helped. I installed libapache2-mod-evasive -- I'm sure it blocks the attacker, but I'm still lagging.
What can I do? Can I at least find the IP of the attacker? I have strong experience with Linux, but almost zero experience with being a server admin.
General :: Retrieving Data From Corrupt File System?
Oct 26, 2009basically the situation I'm in is someone mistakenly expanded an NAS without unmounting the drive on the server. This corrupted the superblock and its apparent that all the backups are no good. The drive in question was expanded from about 800gigs to 1.8TBs, its done via an NAS.
At this point I'm most concerned about getting the files off the drive, I can deal with resetting the file system but I really need those files. This happened within a week of me joining this group so I'm kind of doing damage control here, backups were not taken of this particular drive.
Ubuntu :: Installing Oracle - /etc/init.d/oracle-xe Configure Command Missing?
Jul 24, 2011I've AMD64 system with Ubuntu 11.04 installed. It's been rough ride for me to install oracle-xe-universal. I've already spent more than 2 days on this. Still unsuccessful.
1) First I downloaded the packages libaio_0.3.104-1_i386.deb and oracle-xe-universal_10.2.0.1-1.1_i386.deb
2) Then I ran
sudo apt-get install bc (ran fine)
sudo dpkg -i --force-architecture libaio_0.3.104-1_i386.deb (ran fine)
sudo dpkg -i --force-architecture oracle-xe-universal_10.2.0.1-1.1_i386.deb
(gave me dependency error for libc6 (>= 2.3.2), I modified the control file to remove dependency and rebuilt the package) (now worked fine) Oracle xe is now installed. Then I tried to start the DB it started but it's HTTP client never started. So I decided to uninstall the oracle-xe=universal. None of the sudo apt-get remove oracle-xe-universal command's didn't worked for me. So i went for manual uninstallation directions as per oracle link.
I ran the following command-
--Manually uninstalling Oracle 10g--
sudo rm -rf /usr/lib/oracle /etc/oratab /etc/init.d/oracle-xe /etc/sysconfig/oracle-xe /usr/share/doc/oracle_xe /usr/share/doc/oracle_xe_client
Then I again ran the following command to install oracle-xe
sudo dpkg -i --force-architecture oracle-xe-universal_10.2.0.1-1.0_i386.deb
See below what I got as the output-
rocky@ubuntu:~/git/mygit/edas2/libaio$ sudo dpkg -i --force-architecture oracle-xe-universal_10.2.0.1-1.1_i386.deb
dpkg: warning: overriding problem because --force enabled:
package architecture (i386) does not match system (amd64)
[code]....
Even in applications menu I don't see the if oracle has been installed. So i conclude first time installation was ok but somehow http client didn't worked. After manual uninstallation, second installation didn't even loaded/installed the oracle-xe in init.d directory.
Ubuntu :: How Do I Recover Data From Corrupt Encrypted Filesystem
Dec 1, 2010Recently I was forced to hard reset my computer a couple of times (mostly out of frustration) and due to my idiocy i was confronted with the standard Kernel Panic message at bootup. I tried running an fsck from live cd which corrected a bunch of errors but to no avail (as far as getting rid of the Kernel Panic msg). I then tried to mount the filesystem by accessing it from live cd (and later even installed ubuntu on a small leftover partition to get rid of the annoying live cd lag) but it says that I don't have access to my home or root folder. Mounting from command line gave the same issue.
So now to the question. Is there a general procedure to access data in my corrupt filesystem if it is encrypted?
Ubuntu :: Correct The 50MB Worth Of Corrupt Data?
Apr 27, 2011I am currently downloading 44Gig of video files and I noticed that Transmission is reporting that I have downloaded 40.5Gigs already with +50MB corrupt.How do I correct the 50MB worth of corrupt data?
View 2 Replies View RelatedSoftware :: Data Recovery For Corrupt Hard Drives
Mar 29, 2010I have heard of a linux based data recovery for hard drives (corrupt) its bootable and once loaded and booted it will scan for drives and show there contents and let you pick and choose which ones you would like to back up/ save to a disk so you can wipe a drive and keep your info but I cannot remember the name of it.
View 5 Replies View RelatedGeneral :: User For Oracle,tried To Install Oracle 10g On Redhat 5 But Gettinh The Same Error Message?
Nov 27, 2010I'm a new user for oracle,tried to install oracle 10g on redhat linux 5 but gettinh the same error message.response/ runInstaller[oracle2@localhost database_10201]$ sh runInstaller _runInstaller: line 54:/tmp/database_10201/install/.oui: Permission denied_Doany one plz help me how to give full set of permisions to an user in linux to access a folder??
View 2 Replies View RelatedOpenSUSE :: Adding - Mounting New Drive & Recovering Corrupt Data
Mar 4, 2010I have a Hard Drive that has a corrupted file system and i have tried the usual MS Windows fixes, chkdsk and a number of recovery tools inc Dos recovery tools and failed.
The Drive is an MS Windows drive with an NTFS file system.
chkdsk scans and after several hours fixing numerous problems eventually gives up and fails to complete.
The directory "My Documents" contains several GB of data and displays that this is true. When trying to access the directory, access is denied because its corrupt. Using Windows and Dos recovery tools i can view the contents of the directory sometimes! but cannot copy out any of the data, the applications return messages saying no can do basically.
I would like to try to use Linux to recover the data.
Problem number one is i have never tried to add a hard drive to an existing Linux system before, how do i go about adding a new drive?
The 2nd problem is, is there a Linux application that i can use to attempt to repair and recover the corrupt data on this drive or more specifically in the "My Documents" directory.
Ubuntu Security :: Recovering Data From Corrupt Encrypted Partition
Feb 25, 2010I have recently recovered from an HDD failure on my Drobo. One of the disks died and corrupted the entire array (which is not supposed to happen). I have since managed to copy the data off onto smaller disks and after replacing the failed drive, have copied everything back.
Now that im up and running again, i was wondering how this situation would play out on encrypted disks, or in the case of a drobo a large encrypted partition (as you cannot encrypt the entire array).
Would i still be able to recover the data if i were to encrypt it? It is a 4.2TB array, and i assume that I would need to copy the data in its entirety to recover it, so using multiple smaller disks would be out of the question right?
General :: Debian - Manually (command Line) Disabling USB Automounts?
Jan 30, 2011I know that I can use the GUI (gnome-volume-properties) enable/disable the USB sticks/disks automount features, by checking/unchecking the pertinent options.My question is: how can I obtain the same results from the command line (that is, without using any GUI frontend)?
View 5 Replies View RelatedGeneral :: Which Command Is Used To Block Tcp Port
Mar 26, 2010i want to block tcp port with the help of iptables commands linux.which command is used for this purpose?
View 2 Replies View RelatedGeneral :: Can't Find ./prog.sh Start - Unable To Kill Manually Using Command
Nov 3, 2010I'm trying to figure out how to operate a rather large Java program, 'prog'. If I go to its /bin/ dir and configure its setenv.sh and prog.sh to use local directories and my current user account. Then I try to run it via "./prog.sh start". Here are all the relevant bits of prog.sh:
[code]...
When I actually do ./prog.sh start, it starts. But I can't find it at all on the process list. Nor can I kill it manually, using the same command the shell script uses. But I can tell it's running, because if I do ./prog.sh stop, it stops (and some temporary files elsewhere clean themselves out).
[code]...
the process is running yet not in any way listed by the system. I can't find it in ps or /proc/, nor can I kill it. But the shell script can still stop it properly. So my question is, how can something like this happen? Is the process supremely hidden, actually unlisted, or am I just missing it in some fashion? I'm trying to figure out what makes this program tick.
Server :: Oracle Error Gets Changed During Data Recovery?
Jul 31, 2010We have a Wipro Net Power 8552 server on RAID 5 with Linux Advanced Server. The Databse is Oracle . Every time the reocovery is made the block corruption error gets changed. There are four hardisk in the Raid with 18 GB capacity of Quantum make. I want to make sure if any Utility is there in Linux to check the Harddisk if any Block corruption is there or Not.
View 1 Replies View RelatedProgramming :: Use 32 Bit C Libraries On 64 Arch Sysem?
Apr 11, 2010Just what it says in the title.
I can work in a 32-bit VirtualBox VM, but it's very inconvenient and I would rather work in my 64-bit desktop if that's not too difficult.
These are all the lib32 packages I have installed code...
Ubuntu :: Manually Assign A Data Partition?
Jul 15, 2010I have a hdd of about 225gb when i installed ubuntu it gave a nice split down the middle on the partition and a 3gb swap. I tried to manually assign a data partition but was unsuccessful; kept getting a root error and couldn't fix it so i let it do it automatically.
Now win7 has a 60gb partition and the rest is on ubuntu side.
How can i give win7 more room? qparted for linux side or partition magic on win side?
Which will be easier for me?
My goal was to give win7 around 80gb and ubuntu about the same or less and make a third partion and name it "Data". Data will be storage for both os's or whatever.
Software :: Run Oracle In Command Prompt?
Apr 27, 2010I'm using rhel5 and i've installed oracle 10g in it. I've followed all the steps and i configured it successfully. In applications i'm not getting the sql symbol in graphical.I dont know how to run oracle in command prompt
View 3 Replies View RelatedSoftware :: Block Driver Error While Reading Data
Jan 22, 2010i am writing sample block driver while reading data i am getting below error
i am not getting what is this error
BUG: sleeping function called from invalid context at kernel/sched.c:4684 in_atomic():0, irqs_disabled():1
Pid: 5364, comm: test_buf Not tainted 2.6.27.42 #1
[<c041f1d4>] __might_sleep+0xae/0xb3
[<c063ae43>] wait_for_common+0x1f/0x117
[Code]....
General :: Data Transfer Rate Decreases With Dd Command?
Apr 25, 2010anyone know why this would happen? I ran the following dd command:
Code:
dd if=/dev/sdb1 of=hard/old_dell_desk_part1.img
a USB external drive was mounted to the 'hard' directory with the standard mount command. it is a ntfs-3g filesystem. it is a mechanical drive.
same behavior with solid state memory (flash, and solid state hard drives)
3693492+0 records in
3693492+0 records out
1891067904 bytes (1.9 GB) copied, 274.562 s, 6.9 MB/s
[Code].....
General :: Data Recovery On HDD - Command Line Prompt
Feb 11, 2010I installed Fedora 10 on a pc I built from a barebones package, I have had no problems over the past couple months until recently. When I start up the pc the OS lags on a black screen with the cursor blinking. I have searched forums but I guess since I am a newbie I am still lost in the translations. What I am trying to do is save my files that are on the pc to a DVD-RW or my external hard drive before I have to reinstall the software again.
My questions are as follows:
How can I locate the files on the hard drive? When I have the bootable cd-rom inserted I am unable to locate the HDD. How can I transfer my files using the command line prompt? Finally, is it possible just to upgrade to the latest Fedora without losing my files and going through the data recovery process head ache? Or can I reinstall the OS and not lose my files?
CentOS 5 :: Nagios Running The Command Manually
Dec 15, 2010I found it once on the web by means of googling it.How do you run a command, from nrpe.cfg, to make sure that it works?For instance, command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200
View 1 Replies View RelatedGeneral :: Command Line To Prepend 8 Bytes Of Data To A Binary File?
Jan 14, 2011i would like to add 8 bytes of data to the begigning of a binary file.is there a command for this?
View 2 Replies View RelatedGeneral :: Burn Data (file) With Command Line (at Terminal) To DVD Rewrite?
May 17, 2010Now, I use Fedora Core (version 8) with core linux OS 2.6
I have some file data with size about 2G and I want to burn (write) this file to DVD rewrite.
I know linux OS can install software to burn data to DVD, but I don't have permission to install more software. I only use command line over Terminal (Gnome Terminal).
Software :: Failed To Install Oracle - Command To View Current DISPLAY Environment Variable Setting
Jun 28, 2010How to install oracle? I have been tried many times but seems can't resolve the DISPLAY issues.
All installer requirements met.
Use the following command to view the current DISPLAY environment variable setting:
OpenSUSE Install :: Error Message Was 'bad Magic Number, Corrupt Superblock' With A Suggested Command To Try Another Superblock?
May 14, 2011After several crashes during videos it seemed like a good idea to fsck root. Downloaded the latest systemrescuecd and ran it at boot. The error message was 'bad magic number, corrupt superblock' with a suggested command to try another superblock. That failed with the same message. Tried tune2fs to force fsck at boot and got the same message. The drive is less than 6 months old and the installed system is working more or less ok. The command I used was 'fsck.ext4 /dev/sdc2'. What am I doing wrong?
View 9 Replies View RelatedUbuntu :: Command To Get Block Size?
Mar 1, 2010In a book, I read tha cmchk command is used to get the disk block size. But in Ubuntu, it is not allowed as command is not available.Can some body tell me what is its equivalent in Ubuntu.
View 4 Replies View RelatedDebian :: Du Command Without 1024 Block Size
Aug 20, 2011i'm calculating the size of directories using "du"
PHP: function du($path)
{
exec ('du -sb ' . $path, $res[]);
$size = $res[0][0];
[Code].....
But then again, it doesn't calculate the actual file size, but rather a size aligned to 1024 bytes just as Windows does that with 4096 bytes cluster size. Is there a way to calculate the actual file size? eg. 1021 bytes
Ubuntu :: Command Prompt And Said The 'file System Check Failed' And To Run Fsck Manually?
Feb 25, 2010I have Ubuntu 9.10 installed on my HP desktop, but I'm running an older version (8.10) on a live CD so I can at least get online to ask for some When I tried to log on earlier it went to a command prompt and said the 'file system check failed' and to run fsck manually. I entered 'sudo fsck' at the prompt and I selected "y" to fix all the bad inodes, when it was complete it told me to restart, I then entered 'sudo restart' at the prompt and it said 'sudo uuid unknown'. I have not installed anything recently and I'm not sure what to do.
View 3 Replies View RelatedUbuntu :: Terminal Command To Block All Internet Connections?
Apr 16, 2011I am trying to write a shell script that will block any outgoing Internet connection, focusing mainly on the HTTP connections.
It would be nice if this command could work on both Mac OSX and Linux.
Ubuntu Servers :: Bash Seem To Block Vsftpd Conf Command
Mar 16, 2011I am new on ubuntu and I really don't have any background on making a server. To be frank is I am still a student learning ubuntu server, how to make and configure them.
My problem is that whenever I type the command:
/etc/vsftpd.conf
an error message says that:
-bash /etc/vsftpd.conf: Permission Denied
I am still discovering what are the commands on the vsftpd server. By the way I am using the server on VMware.