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  • How to prepare and secure a Macbook Pro for work/office?

    - by sunpech
    I plan to use my Macbook Pro at work/office. Before I do so, I will need to speak to my manager on how to properly prepare and secure it since this is the first Mac that will be regularly used on the network in the office and company intranet. The intranet comprises mostly of PCs running Microsoft Windows XP, Server 2003, and Windows 7. So there's definitely a Microsoft-only culture in the office, and the infrastructure/networking team are mostly unfamiliar with non-Microsoft technology and software. What steps and software would I need to prepare and secure my Macbook Pro for work/office? Antivirus/Spyware software for Mac required/necessary? What options do I have to encrypt files, or possibly the whole drive/partition? What network/firewall settings should be enabled?

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  • Why can`t we treat SSL Certs like Pgp keys instead of trusting CAs?

    - by yarun can
    I am dumb and stupid and I do not know all the technical aspects of SSL and server/client side implications and implementations. However I understand them good enough from user point of view to use SSL and encyrption daily. I was thinking that how silly it is to trust some unknown/known CAs when it comes to our our certificates for our servers. There had been many cases of misconduct, misuse, compromises and theft of certificates/ca keys from those places. On top of those known issues we also have to pay these guys regularly. I am wondering why can not we use/treat web server certificates like we use our pgp keys? So I sign a SSL certificate and send to a central server. And then each user accessing my site checks the validity and the keys from some central server (like pgp key servers). Is this a stupid idea? If so what could be a better idea than current system of issuing valid certificates. I am looking for a better than more secure idea. Naturally this is not a solution to an existing problem, rather it will be a hypothetical solution for some future implementation of a currently messed up web of trust on the internet due to recent news about NSA and their criminal buddies around the world. thanks

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  • Debian + ProFTPD + LDAP Incorrect Password Issue

    - by Tristan Hall
    I have the LDAP configuration configured for ProFTPD and I have modified the modules.conf file to include the LDAP module. However, every time I login with FileZilla I get 530 Login Incorrect. It does this for all users except those whose passwords are defined locally as well as in LDAP. The exact same setup works fine on my CentOS server and I've already tried re-installing it after purging the configuration files.

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  • How to convert ext3 partition to use encrypted file system without loosing data?

    - by User1
    My embedded Linux device have 2 partitions: small root partition containing OS. big data partition which uses ext3 I want to encrypt the data partition by using encrypted file system. I don't want loose any data of the partition. Size of the root partition is too small to hold all data of the data partition. It is not possible to use any external data storage. Is there any tools that can convert filesystem of the data partition from ext3 to encrypted fs without copying all files to other place?

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  • Which is the most independent and secure email service? [closed]

    - by Rafal
    I'm looking for a provider with a secure transfer protocol (like https) Secured (as much as it is possible) from being hacked or spied on. One that won't scan my email in order to display more accurate ads. One that won't sell my personal information. One that won't disclose my emails to some sort of government (it probably must be based outside of US or Chinese jurisdiction I reckon) Encrypted if possible. It can be simple and without huge storage. If you know/use any similar service I would be really grateful if you could point me there. Cheerz

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  • Enabled storing Bitlocker keys in Active Directory, is there a way to upload keys of drives encrypted before this?

    - by Rossaluss
    We have enabled storing of Bitlocker keys within the device object on Active Directory, however before this was implemented, we had encrypted 100+ devices using bitlocker and we've only found ways to upload the key to AD when enabling bitlocker for the first time on an install. Does anybody know of a way where we can upload all the keys for all the devices which already had their drives encrypted with Bitlocker into their respective device objects in AD? Or are we going to have to decrypt and re-encrypt all the devices on the floor? (Google seems to say this is what we're going to have to do, however we're no experts in Bitlocker, so may have missed something) When we go into Manage Bitlocker of an already encrypted device, we only get the same options of saving the key to a file, a memory stick or printing it out, no option is available to save to AD etc. Any help would be appreciated.

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  • Protect apache2 server-status handler by password

    - by Shiplu
    In my apache2 server I access /server-status to check my current status of the web-server. I found that mods-available/status.conf contains the snippets that is responsible for showing status. <Location /server-status> SetHandler server-status Order deny,allow Deny from all Allow from localhost ip6-localhost </Location> My question is how can i make it available not only for localhost but also for remote host with authentication?

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  • If I scp a file through an intermediate server, is the file stored temporarily on the server?

    - by Blacklight Shining
    For the sake of simplicity (I find it easier to remember names than arbitrary letters), I will dispense with letters and use names to refer to the machines in this scenario. Say I have two machines, applejack and pinkie-pie, each on their own separate LANs and not in the same physical location. I also have a server, cadance, with a direct Internet-facing connection. I want to copy a file from applejack to pinkie-pie, so to avoid dealing with port forwarding and such, I set up an ssh tunnel from pinkie-pie to cadance (ssh -R etc cadance). Now I can connect to pinkie-pie from anywhere, by connecting to cadance and specifying an alternate port to use. I can also easily copy files to pinkie-pie with scp -P $that_port $some_file cadance:$some_path. My understanding of how it works is this: A secure connection is made from applejack to cadance I am authenticated to cadance A secure connection is made from applejack to pinkie-pie that spans the existing reverse tunnel and the new connection from step 1. I am authenticated to pinkie-pie Files are copied directly from applejack to pinkie-pie over this connection. Am I correct here? How secure is this approach? If I'm wrong…are files copied this way decrypted at cadance before being passed on to pinkie-pie? Is there a possibility that traces of unencrypted data could remain on cadance?

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  • Securely wiping a file on a tmpfs

    - by Nanzikambe
    I have a script that decrypts some data to a tmpfs, the directory is secure (permissions), the machine's swap is encrypted (random key on boot) and when the script is done it does a 35 pass wipe (Peter Gutmann) of the cleartext on the tmpfs . I do this because I'm aware wiping files on a journaling file system is insecure, data may be recovered. For discussion, here're the relevant bits extracted: # make the tmpfs mkdir /mnt/tmpfs chmod 0700 /mnt/tmpfs mount -t tmpfs -o size=1M tmpfs /mnt/tmpfs cd /mnt/tmpfs # decrypt the data gpg -o - <crypted_input_file> | \ tar -xjpf - # do processing stuff # wipe contents find . -type f -exec bcwipe -I {} ';' # nuke the tmpfs cd .. umount -f /mnt/tmpfs rm -fR /mnt/tmpfs So, my question, assuming for the moment that nobody is able to read the cleartext in the tmpfs while it exists (I use umask to set cleartext to 0600), is there any way any trace of the cleartext could remain either in memory or on disk after the snippet above completes?

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  • Mac questions: installing TrueCrypt and Windows 7

    - by KeyStroke
    Hi, I'm about to buy a Mac laptop, but I need to be able to use Windows 7 as well + encrypt the HDD with TrueCrypt (or a better alternative for the mac). My questions are: 1) How well does Windows 7 perform under boot camp? 2) Will I be able to encrypt the whole HDD (with TrueCrypt or whatever else) and still use boot camp to dual-boot? Your help is much appreciated

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  • gitosis always asks for git password

    - by Cylindric
    I've just followed the simple gitosis install instructions on an Ubuntu server, such as these http://blog.agdunn.net/?p=277 On the server I log in as "mark", and into /home/mark/.ssh/ I copied my keyfiles id_rsa and id_rsa.pub from my laptop. I used that id_rsa.pub when initialising the gitosis stuff, and can happily connect locally when logged in as 'mark'. From my laptop though, where I have the same keys, I can't connect. I just get an error: git clone git@support:gitosis-admin.git Initialized empty Git repository in u:/gitosis-admin/.git fatal: The remote end hung up unexpectedly The server is Ubuntu 9.04, the client is a Win7 laptop with Cygwin and WinSysGit.

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  • Detecting a TPM chip?

    - by Danielb
    I have a HP Mini 311-1000CA netbook running Windows 7 Ultimate. I'd really like to encrypt the harddrive using BitLocker but I am unsure as to how to work out if the Mini has a TPM chip or not. Any ideas?

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  • convert .p7b key to a .pfx

    - by DrStalker
    I have an SSL certificate in .p7b format that I need to convert to .pfx. If I try this through the windows certificate managment the option to expert as a .pfx is disabled. Trying with openssl I have found the following two commands to do the conversion: openssl pkcs7 -print_certs -in certificate.p7b -out certificate.cer openssl pkcs12 -export -in certificate.cer -inkey privateKey.key -out certificate.pfx -certfile CACert.cer but I'm not sure what key to use for teh esecond command, or what certificate CACert.cer refers to. How can I convert this key to .pfx format?

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  • IPSec for LAN traffic: Basic considerations?

    - by chris_l
    This is a follow-up to my Encrypting absolutely everything... question. Important: This is not about the more usual IPSec setup, where you want to encrypt traffic between two LANs. My basic goal is to encrypt all traffic within a small company's LAN. One solution could be IPSec. I have just started to learn about IPSec, and before I decide on using it and dive in more deeply, I'd like to get an overview of how this could look like. Is there good cross-platform support? It must work on Linux, MacOS X and Windows clients, Linux servers, and it shouldn't require expensive network hardware. Can I enable IPSec for an entire machine (so there can be no other traffic incoming/outgoing), or for a network interface, or is it determined by firewall settings for individual ports/...? Can I easily ban non-IPSec IP packets? And also "Mallory's evil" IPSec traffic that is signed by some key, but not ours? My ideal conception is to make it impossible to have any such IP traffic on the LAN. For LAN-internal traffic: I would choose "ESP with authentication (no AH)", AES-256, in "Transport mode". Is this a reasonable decision? For LAN-Internet traffic: How would it work with the internet gateway? Would I use "Tunnel mode" to create an IPSec tunnel from each machine to the gateway? Or could I also use "Transport mode" to the gateway? The reason I ask is, that the gateway would have to be able to decrypt packages coming from the LAN, so it will need the keys to do that. Is that possible, if the destination address isn't the gateway's address? Or would I have to use a proxy in this case? Is there anything else I should consider? I really just need a quick overview of these things, not very detailed instructions.

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  • why is rdiff-backup not compatible with encfs ---reverse

    - by user330273
    I'm trying to use encfs with rdiff-backup to ensure that my backups to a remote server are encrypted. The easiest way to do this would be to use encfs --reverse - which means encfs will create a virtual encrypted file system, which I can then backup using rdiff-backup. Except that it doesn't work. Rdiff-backup fails every time with an "input/output error" on the encfs virtual filesystem. It seems I'm not the only one with this problem, but no one has said what the problem is: this person reported the same issue, but was just told to use sshfs instead (see below on that); in this question on serverfault, one of the answers just states that "rdiff-backup seems to have trouble accessing the EncFS-reverse filesystem." There's an open bug report on the Debian bug tracker(bug 731413, I can't post the link) on this bug, but it's been open since December 2013 with no response. Does anyone know what the problem actually is? Is there a workaround? I can't use the two most commonly suggested alternatives - sshfs and then running encfs on that, or using Duplicity - as both require a much higher bandwidth connection than I have access to (Duplicity requires regular full backups).

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  • Is it possible to re-lock a bitlocker drive?

    - by Sean Edwards
    I'm running a partition with bitlocker on a Windows 7 Ultimate machine, which contains secure data that I have to recover infrequently. Unlocking it to access the data is obviously no problem, but is there a way to re-lock the partition when I'm done? The best I've found so far is this: http://social.technet.microsoft.com/Forums/en-US/w7itprosecurity/thread/41607938-7452-440d-8253-67fe8657bc0f Currently I have a .bat script on that drive that I can run as administrator, and that re-locks the drive, but it feels like kind of a hackish solution. Does anyone have anything better? Any idea when Microsoft might release a fix for this?

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  • Encrypt uploaded pdf files with mcrypt and php

    - by microchasm
    I'm currently set up with a CentOS box that utilizes mcrypt to encrypt/decrypt data to/from the database. In my haste, I forgot that I also need a solution to encrypt files (primarily pdf, with a xls and txt file here and there). Is there a way to utilize mcrypt to encrypt uploaded pdf files? I understand the possibility of file_get_contents() with txt; is a similar solution available for other formats? Thanks!

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  • sql server password reset

    - by Alex James
    Hi everybody I have deleted my windows account on wich I had installed sql server 2008 express. Now I can not perform any operation with my sql server including adding new user. Pleas sombody help me.

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  • sql server password reset

    - by Alex James
    Hi everybody I have deleted my windows account on wich I had installed sql server 2008 express. Now I can not perform any operation with my sql server including adding new user. Pleas sombody help me.

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  • How to encrypt disk transparently without destroying data

    - by aseq
    On a Linux system, be it Debian, Redhat or any distro, I would like to encrypt the disk on the fly. That is, encrypt the disk transparently to the OS whilst it is running, reboots, shuts down etc. In addition it should not destroy data. I know there is (commercial) software for windows that does it. But I need a Linux solution. The solutions I know of do not support this as far as I can see (luks, truecrypt...). Maybe there is some hack or work around available?

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