Every time I log in to my Fedora 13 system, I am prompted for my SSH pass phrase.
I would like to be prompted the first time I login after booting, but then have ssh-agent continue to run until I kill it or shutdown so I don't have to be prompted every time.
Where do I configure this?
I recently was given a system with an ASUS A8V motherboard, AMD Athlon 64 3000+ 1.8GHz CPU and one 60 GB SATA disk to which I added a 120GB IDE disk. As the disks are on different (built-in) controllers and are different speeds, I set up /boot, root and swap on the SATA disk, and then one big /home partition on the IDE drive, using the custom partitioning. If I install Fedora 15 32 bit (from DVD) with encryption enabled, I get prompted for the encryption passphrase during bootup as I would expect. If I install Fedora 15 64 bit (from DVD), I get that same prompt and the boot hangs. I can then bring up a serial console where I'll find a prompt for the same passphrase for the IDE drive. I can enter it and the boot will proceed.
I am now running F15 64 without encryption; I would like to get encryption working again but without having to enter the passphrase twice. Plus I figure that this *should* work the same under both the 64 and 32 bit versions. I have had to reinstall this system a few times, using both versions -- the behavior has been consistent.
I got a little problem upgrading my ubuntu-nas with some storage.I wanted to add a new harddrive to my lvm but I stuck before getting to this point.I want my harddisc to be encrypted before adding it to the lvm.I tried the following:
Code:
# sudo cryptsetup luksFormat /dev/sdb1 -y
WARNING!
========
This will overwrite data on /dev/sdb1 irrevocably.
Are you sure? (Type uppercase yes): yes
... and nothing happens. dmsetup ls returns nothing.
I'dont get prompt for passphrase for decrypt luks during boot.Instead it says 'error: device name required, press any key to continue"
Grub.cfg: http://pastebin.com/GZsuXp1y
kernel: linux-image-4.3.0-1-amd64
video with issue: https://www.youtube.com/watch?v=13ruhtUcwRo&feature=youtu.be
VM disk has 2 partitions:
sda1 with /boot
sda2 - luks encrypted
Simply, the number of possible combinations of passwords increases as an exponent of the number of characters used and as a factor of the number of characters available for use.
26 potential characters for a 2 character password results in 26^2 possible password combinations. This means that each new character added would result in an "order of magnitude" increase in the difficulty of brute force attack.
Using a phrase, complete with punctuation and capitalization is the very best mnemonic device to remember a password. Consider this, how hard is it to remember; The quick brown fox jumped over the lazy dog.
Than it is to remember, l33tsp34kp@ssw0rd
If we pretend that both of these passphrases are generated from a character set consisting of 26 characters, the first would be one of a possible 15274273784216769021564085930704478424313742483024 510976. The second would be one of a possible 1133827315385150725554176.
In short, use a passphrase not a password, they are much MUCH more secure.
I am using Fedora 13 x64.I want to removing passphrase from the RSA Private Key then harden the decrypted Private Key.When I tried section 6.6 guide line, I get directory does not exist?I don't know where my server.key is stored.
View 1 Replies View RelatedWe have small requirement, we need to connect to ssh server through ey+Passphrase+password. Is it possible to configure this type of authentication in any version of openssh/fedora.
View 3 Replies View RelatedI have currently a file server that runs on Fedora 9, and all other PCs (mostly running Windows XP) access the file server via SAMBA. Everything works perfectly! However, lately a home invasion in my neighborhood got me thinking. If they take my file server, my data is not protected. So, I would like to implement the LUKS partition encryption (/home) which sits on a separate disk. However, I don't quite like the decryption process at boot time. In other words, I would like to wake up the file server (WOL) remotely, and when it's done booting, I would like to log-in using the other PCs and enter the passphrase remotely to decrypt /home. Is this possible using LUKS encryption (i.e., cryptsetup)? If not, what would be another alternative to what I am trying to do using a secure encryption (so that the data is safe from thieves)?
View 4 Replies View RelatedI just upgraded to Fedora 13, with emacs 23.1. Now when I edit a .gpg (encrypted) file, emacs doesn't cache the passphrase, so when I save the file emacs demands that I repeat the passphrase twice.Previously, the following line in .emacs made it cache the passphrase:
Code:
(setq epa-file-cache-passphrase-for-symmetric-encryption t) This is supposed to work, according to the documentation [URL], but in Fedora 13 emacs it seems to have stopped working.
I have an encrypted disk, using LUKS / dm-crypt, on Fedora 14.Every time I boot, I am immediately prompted for the passphrase. This happens VERY early in the boot process, and is a graphical screen (ie not console text). If I hit escape, I am prompted in a text-mode for the same passphrase. If I hit escape or return a few times, boot continues normally.
I only mount the disk occasionally, and don't want to be prompted at boot for the passphrase to luksOpen the disk at boot. I manually cryptsetup luksOpen and then mount it when I want access. I just don't want to be asked at boot, and don't want to unlock it until I do so manually.Does anyone how how I can tell Fedora to not attempt to decrypt / mount this filesystem at boot?It's not in /etc/fstab. I should mention, no LVM, just mdadm raid5 on the partition + luks /dm-crypt.
How to change the passphrase for crypted partitions in F14?
View 1 Replies View Relatedhow to make suse prompt for a login when I first boot up. It never asks for my password and boots directly into kde.
View 4 Replies View RelatedI am wondering how to add a need to restart notification in a Debian package, so upon installation, it'd pop up something to tell the user to restart the computer for changes to take effect. Perhaps something like what happens with some packages through the update-manager when it prompts the user to restart for the changes to take effect.
Is there any way to do that? Perhaps adding something at the end of a "postinst" file?
Thinking about it, I could just add something like this at the end of the "postinst" file:
Code:
notify-send -t 86400000 -i /usr/share/icons/gnome/32x32/status/info.png "Please restart the computer for all changes to take effect."
It'd work, but not as well. For instance, if the person isn't by their computer at the time.
Another option could be using a Zenity dialog box. That might work. Though, if done, wouldn't a yes/no question box keep the actual package from technically finishing until the user would select yes/no to restart?
I'm running Red Hat Linux 5.4 on HP DL580 server with 16 processors and 64 GB of RAM. I'm connecting to the server remotely through SSH. after entering the password, it takes time to return the command line, if I click ctrl+c during this time, I'll have the command line prompt but not the correct bash prompt (I have to run bash to pass to my correct prompt).I tried to install Apache on the server, ./configure took 4 hours to finish instead of 1 or two minutes, Oracle installation same behavior. Server Disks are mirrored using RAID controller.
View 6 Replies View Relatedwhat purpose does it serve to use a passphrase? Once the keys are generated the passphrase isnt used? Or what am I missing??? I did not use a passphrase and understood that there was no security implications of not doing so. Is this correct?
View 6 Replies View RelatedIs there any way to only have one passphrase prompt when using multiple LUKS partitions? Well there must be, as that's how Fedora does it - it asks you once, and tries that passphrase on every LUKS volume (with a nice plymouth prompt), I just don't know how to do that on Wheezy. Don't say I have to nuke my install and use LVM instead of regular partitions or put a keyfile on a USB stick. My partition layout is:
/boot (plain)
swap (luks)
/ (luks)
/data (2nd drive, luks)
So I get asked 3 times during boot.
I'm trying to add a key to a new slot from a keyfile that I created, but I keep getting an error and I don't know what the problem is.
Code:
root@ubuntu:~# cryptsetup luksAddKey --key-slot 1 /dev/sda5 -d /media/Ubuntu_10_04/etc/cryptkeys/swap.key
No key available with this passphrase.
content of swap.key
Code:
nBPeNCr_PS-yEv5SYEyyzaEextllDLo7aHs7yZGW9dtC48GDlte6WYQe7iG2poJr84U6twxu1DImZcyoBPB1q1AjYAanPsre7qLr7VnN4G6u1x_WG-sja6U_pvnks9CTgcD4UmfBw9mkrU3YY4GknQXtpLvkiBkM1soJ0SYYQ2r-7CDZJvaiYJb9eOKKbMsjlrEG39IBdQwdcEp3D7PK5paTYZdVHU2ygrJvJy-sJly4oqb2274DO8hbYviQsPdawetglkhhhhhhh98h4erwjerfkasjnfhsahfocLnBPeNCr_PS-
[code]....
I am a noob who is playing around with setting up a home print/file server using Ubuntu Server 10.04. I have successfully setup the server and am now configuring the SSH server so I can control remotely.
I have setup RSA keys with a passphrase as outlined in the SSH - Ubuntu Community Documentation. However, when I log in remotely I am only asked for the passphrase the first time. Any subsequent log-ins simply take a few seconds to connect without any passphrase request. After restarting my laptop (that I use to connect remotely), I am again asked for the passphrase only the first time and subsuquent logins are without a passphrase. I would like to know if this is normal and if there is a way to have passphrase requested on each login.
I would like to use a USB key to hold the passphrase for an encrypted /Data partition. A forum search turned up only using that method for / which requires initrd. That's not what I'm after.In openSUSE 11.4 I want to boot normally and then automatically unlock the /Data partition only if the USB key is inserted. I'm assuming this would require some kind of automounting after or during the boot process.
View 1 Replies View Relatedwhen generating RSA public/private key pair, I gave a passphrase to protect the key. When I now want to use this private key in a script to log on to the remote server via ssh and do something, how can I give the passphrase? Alternatively, is it possible to use a different private key without passphrase ? I doubt it, but it doesn't harm to ask.
View 2 Replies View RelatedI need an non-interactive, symetric, passphrase mechanism that can be used on machines beyond my sys-admin control. Currently, I use the Python code (with variants):
Stat, Output = commands.getstatusoutput(
"gpg -c --passphrase=%s '%s'"%(Password, TarFileName))
to encrypt and decrypt files (tar balls). The "Password" is generated by a Python code on a singular removable flash drive. It worked with FC11 and Windows, but with FC13 I get an interactive dialog, which gets canceled, and then: can't connect to `/home/{a user id}/.gnupg/S.gpg-agent': No such file or directory
gpg-agent[3432]: command get_passphrase failed: Operation cancelled
gpg: cancelled by user
gpg: error creating passphrase: Operation cancelled
gpg: symmetric encryption of `testdata' failed: Operation cancelled
The operator does not know the pass phrase. This is a single user mechanism which relies upon the mounting of the special flash drive to work. The application is portable across many platforms and hosts, but can only be used by the possessor of the flash drive.
How can I enable passphrase along with the password for login via ssh ? In that whenever I login from server A to server B via ssh, it should ask me for a password and then passphrase to allow me access.
OR
Can we have multiple passwords to login via ssh ?My basic need is to have 2 levels of password.
I recently started installing Debian and I want to download and install a GUI in it. For that I could use my university Wi-Fi connection. I was told that it's a WPA2 secured connection. But when I tried to configure it, it keeps asking me for a "passphrase". I don't have a passphrase! All I have is my username and password for the Wi-Fi. What should I enter as my passphrase ? I tried both username and password and neither of them worked.
View 4 Replies View RelatedMy friend and I spent two weeks trying to find out why my openSUSE laptop wouldn't connect to his router using WEP. We finally figured out that the KDE networkmanager was not translating the passphrase into the hexidecimal number (default key #1). Once we entered the hexidecimal number, it connected with no problems. He uses Ubuntu on his test laptop (Windows guy). Ubuntu, and kubuntu via live CD, both connected only using the passphrase. I didn't have an openSUSE Gnome live CD to test weather this is KDE specific or not.
View 6 Replies View RelatedI installed ubuntu 9.10 to a fresh partition on a HD that already contains a windows xp. During the install I opted to Require my password to login and to decrypt my home folder, (don't ask why, I regret it already). The install went well, I think, but when it came to reboot time I wanted to check that I could start windows xp from the new grub boot loader. Windows started fine so I rebooted again to try my new install of ubuntu. Now the system seems to get stuck at the little spinning wheel icon. I tried to boot to recovery shell but after entering my name and password I get:
Unable to cd to '/home/myname'
I rebooted using live cd. And mounted the file system as root. Now I have chroot ed into the system but that's as far as my knowledge gets me. I have googled to find the next step but am not finding a clear answer. I have found this [URL]. And here I see I should have seen a screen entitled: Record your encryption passphrase. But I didn't get to that screen. So is there any elegant solution? or am I destined to wipe the install and start again? Perhaps this problem is connected to the bug mentioned here [URL]. Optional encrypted partitions must be marked bootwait in /etc/fstab
In addition to the above, users who have configured any encrypted partitions in /etc/crypttab to start at boot time (i.e., not using the noauto option) should make sure that the filesystems on these volumes are listed in /etc/fstab if they are not mounted at a standard system mountpoint. Failure to do this on a desktop system will lead to problems from the X server and cryptsetup trying to control the console at the same time. At best, this will prevent the user from seeing the passphrase prompt; at worst it will also cause the X server to spin and consume 100% CPU. (430496)
I'm not sure, my /home is not on a separate partition.
/etc/crypttab is empty
# <target name> <source device> <key file> <options>
/etc/fstab is
# /etc/fstab: static file system information.
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# / was on /dev/sda2 during installation
UUID=8e5f54dd-8d79-44da-9ddf-7f4e3bce2a64 / ext3 errors=remount-ro 0 1
# swap was on /dev/sda3 during installation
UUID=32bcb9fc-ff2b-4e37-a259-1bfabee7cee7 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
I've set-up a Linksys WPC54G v5 wireless card using ndiswrapper and the appropriate Marvell driver. It seems to work ok. On my other laptop running Kubuntu with built-in wireless the routing all works fine - I just get prompted by Network Manager for the WPA passphrase and I'm away. However, when I try to connect to my wireless router on thix Xubuntu-based laptop I get really odd security options.
When I try to connect I get a security prompt asking me for a bewildering array of information. There are four basic authentication options under "WPA & WPA2 Enterprise": TLS, LEAP, Tunnelled TLS and Protected EAP. None of those offers a simple passphrase, they all have some combination of username & password with certificates and keys. If I try to connect to other networks in my area, some do just ask for a WPA passphrase, not that I know them to check!
So I've connected to my wireless network with the command:
iwconfig wlan0 essid Linksys
But I need to enter my wireless access' passphrase to connect to it. The closest I've come is using:
iwconfig wlan0 key s: PASSPHRASE
...which gives an invalid argument and I've resently found out that this passphrase command is not supported - yet.
Where do one tell Ubuntu to use a passphrase to connect to a wireless network?
- Ubuntu 10.04
i have installed a ubuntu 10.04 (mini iso) w/ option of root encryption. Now i need to boot without ask for passphrase, but im trying to add a luks keyfile without success.i want to use a keyfile in the /boot partition or inside the initrd (cant be in external pendrive), but ubuntu aparently dont accept a keyfile in /boot or initrd file. I know, this way isnt very security, but i just need a basic encryption.So, how to force the use of a keyfile in /boot or inside the initrd for a crypt root partition?
View 5 Replies View RelatedI have loaded ubuntu Lynx 10.04.1 as a dual boot behind XP home. I have wireless connection to the XP os via netgear wireless G router and USB 2.0 adapter. The network connection works well with the XP side. When I boot into ubuntu I am sure I have configured the network properly with the wep key and password and the network signal is alive in the work bar at the top of the screen. When I open Firefox and try to browse to ,say, ebay it asks for the passphrase again then tells me that FF is in work offline mode. When I correct this I get asked for the pass phrase again and the connection is disengaged. It just keeps asking for the passphrase and disconnecting. When I reboot into XP everything works perfectly again.
View 9 Replies View RelatedIs there a way to change the passphrase login screen? It would be cool to change the background and edit the text?
text : Cryptsetup: evms_activate is not avaible
Unlocking the disk /dev/blablablabla
enter passprase