General :: Tool To Test AES Encryption?
Oct 27, 2010how to test the AES Encryption in the openSuSE 11.3
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General :: Find A Test Tool To Write And Read IO On A Volume?
Nov 23, 2009As part of my testing, I need to find a tool that will write/read IO to a volume. I need it to fill the volume and then read and verify that the write was successful. hroughput stats would be a plus, but right now, IO verification is a must.I need the volume to write, read, verify, then repeat until the volume is full.Can anyone point me to a free tool that can manage this?
View 1 Replies View RelatedUbuntu :: Encryption Tool Required For Files / Folder
Feb 3, 2011I'm using Ubuntu 10.04 LTS. I want to keep my some Files in Encrypted form. Those files may be Audio/Video/Text/etc. Or to Encrypt a specific folder in which I can Store my Important and Secret Files. Which one is the best in Performance?
View 4 Replies View RelatedCentOS 5 :: Any Tool That Can Test Multicast?
Aug 1, 2009I am trying to search a tool for testing multicast. Currently, 'yum search multicast' yields nothing. I saw mcsender and mctest in google but they seem not to be supported in CentOS. Do you know any tool that can test multicast?
View 3 Replies View RelatedNetworking :: Any Tool To Test Website With Slow Connectivity?
Mar 8, 2010Any tool where I can test a web site with slow connectivity? E.g.:
A web server running at Location A
and from Location B want to test the web site hosted at location A with various speeds
How is the loading of the web site from location B at 256kbps, 512mbps etc..
Security :: Reflective DDos ( DrDoS ) Test Tool?
Mar 2, 2011Well someone has been putting up this attack on my game-server ports. For those of you who don't know what type of attack this is, so its an attack which is actually masked to us because the attacker uses his machine to send packets to a machine called source which reflects the packets to destination. Based on this, the UDP port under Flood at the destination starts making outgoing connections to that IP and gets rejected which uses up more than 5mb/second bandwidth instantly.
I've worked out on some security for this and now need a tool to test this against my machine. I've used PentBox but that's not really powerful to do anything. As I search Google, I find something called Trinoo but can't download or test it.
Software :: Raw Device Data Integrity Test Tool?
Jan 6, 2010I've been looking for a good data integrity test tool for linux, but I'm having trouble finding one. Basically I'm looking for an application that will generate a heavy I/O load to a raw device and then perform some kind of data verification on the device. I my case the raw device will be md raid5 array.
View 1 Replies View RelatedServer :: Upload / Download - Command Line Tool To Test Speed?
Jan 4, 2011anybody knows nice tool to check connection speed UPLOAD / DOWNLOAD on the server ?Maybe existing something like speedtest.net for servers ?
View 3 Replies View RelatedGeneral :: Execute Scen-20-test And Vbr-20-test In Ns-allinone-2.34?
Mar 26, 2011I have created mobility of 20 nodes and vbr traffic using following attached script I executed the file as ns234 vbr.tcl I got the vbr.tr and vbr.nam but I was unable to load the graph using matlab <trgraph> I thought problem with is vbr.tcl script.
View 1 Replies View RelatedFedora Servers :: Several Postfix - Test Antivirus Scan Using Eicar Test Virus ?
Apr 8, 2009I have installed Postfix + Amavisd-new, then I am started all services (and configured main.cf and master.cf to use amavis).
The questions are:
1) I am trying to test antivirus scan using eicar test virus
Code:
And the message is successfully delivered to mailbox with mark "CLEAN" in maillog. But I cant see any attachment using
Code:
Where is my mistake?
2) Should I update clam and how I can do it?
3) Is spamassassin enabled by default in amavis (I have started daemon)?
4) Where configuration files of spamassassin is stored?
Ubuntu Installation :: Warning - Can't Create Test File /var/lib/mysql/mosty.lower-test
Mar 15, 2010I am trying to install mysql 5.1.44..so i downloaded the binary package, i extracted it and then followed the instructions that were in the manual but i keep getting this error when running this command
Code:
scripts/mysql_install_db --basedir=/home/mosty/mysql
the error is
Code:
Installing MySQL system tables...
100315 20:07:27 [Warning] Can't create test file /var/lib/mysql/mosty.lower-test
100315 20:07:27 [Warning] Can't create test file /var/lib/mysql/mosty.lower-test
[code]....
You can try to start the mysqld daemon with:
shell> /home/mosty/mysql/bin/mysqld --skip-grant &
and use the command line tool /home/mosty/mysql/bin/mysql to connect to the mysql database and look at the grant tables:
shell> /home/mosty/mysql/bin/mysql -u root mysql
mysql> show tables
General :: Laptop Encryption ?
Apr 4, 2010What are my options for encrypting the /home directories of my Ubuntu laptops? They are currently setup without any encryption and some have /home as a separate partition whilst others don't. Most of these laptops are single-user standalone laptops which are out on the road a lot.
Is ecryptfs and the encrypted Private directory good enough or are there better, more secure, options? If somebody got hold of the laptop, how easy would it be for them to gain access to the encrypted files?
General :: 256-bit AES Encryption For PDF On Mac OS X And Ubuntu?
Jul 21, 2010I have PDF files secured using 256-bit AES, requiring a password to open the file (Acrobat 9 or greater)
I can use Foxit Reader or Adobe Acrobat just fine on Windows, but I can't view those PDF's on Ubuntu or Mac OS X. What PDF readers for OS X and Ubuntu support 256-bit AES?
General :: Encryption - Cryptography Strength Outside USA?
Feb 21, 2010Question: 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 ?
View 1 Replies View RelatedGeneral :: Asymetric Encryption Of Directory?
Mar 1, 2011Currently I am wondering whether it is possible to apply asymetric encryption of a directory in Linux.
I would like to achieve the following:
Write log files to /var/log/secret Everything written to /var/log/secret is instantly encrypted by a public RSA key (or something similar)
The encryption programms I know, i.e. ecryptfs do not support asymetric encryption of files, at least as far as I know. (Correct me if I am wrong). Therefore I am asking here whether you know of any possibility to implement this.
General :: Remove TrueCrypt Whole USB Encryption?
Mar 31, 2011I've accidentally encrypted my 8GB usb stick instead of my 4GB stick and now I need to revert the encryption on the 8GB one. There doesn't seem to be an option like this in the TrueCrypt interface when I mount the USB.
View 2 Replies View RelatedGeneral :: Mounting HDD With Windows PGP Encryption ?
Dec 9, 2010I am using dd_rhelp to recover data from a failed 80Gb hard drive with Windows XP and PGP encryption.
My question: How do you mount a drive encrypted with PGP under Windows on a Linux box?
My scenario...
1. I am new to Linux
2. I do not know the PGP passphase
3. I am using Ubuntu and Knoppix
4. I have another 80Gb drive as the target drive
5. Source (bad) drive /dev/sdc1 drive is attached via a SATA-to-USB adapter
6. Target (good) drive /dev/sda1 drive is installed in laptop
My Problem....
Copies data from source to target drive with many errors. When I view the files copied to the target disk they file names are gibberish (extend character sets for file names) with huge file sizes (up to 9Gb).
I plug the target drive into a Windows laptop and it does not recognize it, even though it was formatted as ntfs.
General :: Will WPA Encryption Interfere With A Netinstall
Jun 6, 2010I have been trying to perform a netinstall (of Debian). Will the WPA encryption on my wireless network prevent (or at least make difficult) the netinstall? Will I need to have the WPA password handy or even to temporarily remove the encryption?I haven't actually run into this problem yet; what I was dealing with on the last attempt, before I decided to finish the netinstall later and went back to my working Linux system (I got impatient with being stuck outside it), was that the netinstall couldn't detect my network by DHCP, and wanted me to enter an IP address. I don't suppose that would be any more difficult than going to the host computer and writing down its IP address, but thinking ahead, I wondered whether the WPA encryption would pose another problem.I didn't really think about these issues when deciuding to try a netinstall: whether my internet connection would work. I mean, if it doesn't, trying to netinstall is a waste of time.
View 1 Replies View RelatedGeneral :: Find Encryption Type?
Nov 12, 2010I used this password Pass1234 when I search password stored its Nh2yEjhdHIwtY what kind of encryption is used? I thought it was crypt() , but when I create crpypt on my local machine its different.
View 3 Replies View RelatedGeneral :: WEP Encryption Key - 26chars (New Change)
Mar 2, 2010I connect wireless success
WEP Encryption Key:10chars
Interface Type: 802.11b/g
well now in my windows pcs changed to
WEP Encryption Key:26chars [windows success]
what choices must change in ubuntu 9.10 for the new change?
Can you tell for 26chars WEP, what choices do not try [Not Appropriate], so find the solution for the right choice[selections of the form - WLAN CONN] easier of the remaining? E.g. Do not try "40/128..." but "128 passphrase"...?
General :: Disk Encryption - Bitlocker Equivalent?
Jan 25, 2011Bitlocker is a harddrive encryption data protection tool which comes with Windows Vista Ultimate and 7. Does anyone know an equivalent for Linux distros like Fedora and Ubuntu?
View 3 Replies View RelatedGeneral :: Implement Full Disk Encryption?
Jul 14, 2011The only reason why I don't use Linux (even though I prefer Linux over Windows, and can do everything faster and more efficiently) is because each time I try to learn about dm-crypt I give up.
Can someone point me in the right direction for full OTFE on Linux (like TrueCrypt)?
General :: Encryption On Ubuntu Lucid After Installation
Jul 21, 2010I'm a relative newby to Linux so forgive me if this is a simple question. I know that if you install Ubuntu using the alternate CD, you can create a whole disk encrypted installation, but what about after a normal installation? What is the best procedure to use to get more than just the home folder encryted? Installation of Fedora 13 gives the option during a normal install to encrypt more than just the home folder. I really only want to encrypt my Ubuntu partition. I have a laptop with a multi-boot setup with Windows 7, Fedora 13 and Ubuntu 10.04 all residing in their own partition. Because of this setup I really can't use whole disk encryption. I use Truecrypt on my Windows 7 partition and it works great but encryption of a Linux system partition is not supported.
View 4 Replies View RelatedGeneral :: Implement Password Encryption In Subversion SVN?
May 12, 2011Am configured SVN on Ubuntu 10.04 ,It's Working fine ;svn access method is svn://ipaddress .In this method am not encrypting the password ,Currently my passwd (/homesvnMyProject/conf )file like that [users]test = testNow i want to Implement the password Encryption for any users, without implementing svn+ssh:// method
View 1 Replies View RelatedGeneral :: What Encryption Does The /etc/shadow File Use For Passwords
Nov 26, 2009I am just wondering what encryption method the shadow file uses, so that I may be able to manually change it. I ask this because I am trying to make a web page that will allow people to change their linux password via a browser.
View 4 Replies View RelatedSecurity :: Acceptable Kerberos Encryption - Error "ktutil: AES256/SHA1*: Encryption Type AES256/SHA1* Not Supported"
Dec 23, 2010I am building an active directory and using BIND9 as my DNS. To allow for secure dynamic updates from the domain, I am enabling GSS-TSIG as detailed here and here. Unfortunately, some of the commands and configurations used here seem to be depreciated, at least in the newer versions that I'm using. My issue is one of keytab encryption. I generated a keytab using ktpass.exe on the Windows Server 2008 domain controller. I have tried DES/MD5, AES128/SHA1 and AES256/SHA1, each have been turned down by ktutil on the kerberos server (FreeBSD). Each time, it outputs the following error: ktutil: AES256/SHA1*: encryption type AES256/SHA1* not supported *Respective to encryption used.
I cannot find a list of suitable encryption schemes that ktutil will accept. The FreeBSD handbook details a means of producing a keytab file, but I'm not sure how to configure the Domain Controller to use the keytab.
General :: LUKS Encryption Affect TRIM? (SSD And System)
Mar 26, 2010I'm moving over to Linux when the new SSD arrives. SSD gives increased performance, so I thought that I could encrypt everything.
But then I came to think about TRIM, and garbage collection on the drive. Will a LUKS encrypted drive affect the garbage collection system? (TRIM).
General :: Performance With Software RAID5 And LUKS Encryption?
Jul 3, 2011I have set up a Linux software RAID5 on three hard drives and want to encrypt it with cryptsetup/LUKS. My tests showed that the encryption leads to a massive performance decrease that I cannot explain. The RAID5 is able to write 187 MB/s [1] without encryption. With encryption on top of it, write speed is down to about 40 MB/s.
The RAID has a chunk size of 512K and a write intent bitmap. I used -c aes-xts-plain -s 512 --align-payload=2048 as the parameters for cryptsetup luksFormat, so the payload should be aligned to 2048 blocks of 512 bytes (i.e., 1MB). cryptsetup luksDump shows a payload offset of 4096. So I think the alignment is correct and fits to the RAID chunk size.
The CPU is not the bottleneck, as it has hardware support for AES (aesni_intel). If I write on another drive (an SSD with LVM) that is also encrypted, I do have a write speed of 150 MB/s. top shows that the CPU usage is indeed very low, only the RAID5 xor takes 14%.
I also tried putting a filesystem (ext4) directly on the unencrypted RAID so see if the layering is problem. The filesystem decreases the performance a little bit as expected, but by far not that much (write speed varying, but > 100 MB/s).
Summary:
Disks + RAID5: good
Disks + RAID5 + ext4: good
Disks + RAID5 + encryption: bad
SSD + encryption + LVM + ext4: good
The read performance is not affected by the encryption, it is 207 MB/s without and 205 MB/s with encryption (also showing that CPU power is not the problem). What can I do to improve the write performance of the encrypted RAID?
[1] All speed measurements were done with several runs of dd if=/dev/zero of=DEV bs=100M count=100 (i.e., writing 10G in blocks of 100M).
Edit: If this helps: I'm using Ubuntu 11.04 64bit with Linux 2.6.38. Edit2: The performance stays approximately the same if I pass a block size of 4KB, 1MB or 10MB to dd.
General :: Text Config File Encryption On System For Security?
Aug 16, 2011I plan to use newsbeuter for console RSS reading.This program has a config text file where I need to store my Google account password,in order to access my Google reader.I don't feel easy at making my password readable to everyone.Is there anyway I can somehow encrypt this information ?
View 1 Replies View RelatedGeneral :: File Encryption In A Bash Script Without Explicity Providing Password?
Jul 30, 2010I want to automate the following manual process.Currently, I am encryptying a set of files using openssl as follows:Encrypt file.txt to file.out using 256-bit AES in CBC mode $ openssl enc -aes-256-cbc -salt -in file1 -out file1.enI am then prompted for a password, which is then used to encrypt the fileWhen decrypting, I type $ openssl enc -d -aes-256-cbc -infile1.enc -out fileI am then prompted for the password - which again, I manually type.I want to automate this process of en/decryption - so I need to find a way of providing openssh with the password.
My first thought is whether it is possible to read the password from a file (say)? Or is there a better way of doing this?Also, I suppose that I will have to place restriction on who can view the password file - otherwise, that defeats the whole objective of using a password. I am thinking to run the bash script as a specific user, and then give only that user read rights to the contents of that file.Is this the way its done - or is there a better way?Ofcourse all of this leads to yet another question - which is, how to run a bash script as another user - without having to type the user pwd at the terminal.
