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A blog of all sections with no images
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Written by Safdar Mirza
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Wednesday, 06 June 2007 |
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C:\Safdar\GNU\GnuPG>gpg --help gpg (GnuPG) 1.4.4 Copyright (C) 2006 Free Software Foundation, Inc. This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions. See the file COPYING for details.
Home: C:/Documents and Settings/safdar.mirza/Application Data/gnupg Supported algorithms: Pubkey: RSA, RSA-E, RSA-S, ELG-E, DSA Cipher: 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224 Compression: Uncompressed, ZIP, ZLIB, BZIP2
Syntax: gpg [options] [files] sign, check, encrypt or decrypt default operation depends on the input data
Commands:
-s, --sign [file] make a signature --clearsign [file] make a clear text signature -b, --detach-sign make a detached signature -e, --encrypt encrypt data -c, --symmetric encryption only with symmetric cipher -d, --decrypt decrypt data (default) --verify verify a signature --list-keys list keys --list-sigs list keys and signatures --check-sigs list and check key signatures --fingerprint list keys and fingerprints -K, --list-secret-keys list secret keys --gen-key generate a new key pair --delete-keys remove keys from the public keyring --delete-secret-keys remove keys from the secret keyring --sign-key sign a key --lsign-key sign a key locally --edit-key sign or edit a key --gen-revoke generate a revocation certificate --export export keys --send-keys export keys to a key server --recv-keys import keys from a key server --search-keys search for keys on a key server --refresh-keys update all keys from a keyserver --import import/merge keys --card-status print the card status --card-edit change data on a card --change-pin change a card's PIN --update-trustdb update the trust database --print-md algo [files] print message digests
Options:
-a, --armor create ascii armored output -r, --recipient NAME encrypt for NAME -u, --local-user use this user-id to sign or decrypt -z N set compress level N (0 disables) --textmode use canonical text mode -o, --output use as output file -v, --verbose verbose -n, --dry-run do not make any changes -i, --interactive prompt before overwriting --openpgp use strict OpenPGP behavior --pgp2 generate PGP 2.x compatible messages
(See the man page for a complete listing of all commands and options)
Examples:
-se -r Bob [file] sign and encrypt for user Bob --clearsign [file] make a clear text signature --detach-sign [file] make a detached signature --list-keys [names] show keys --fingerprint [names] show fingerprints
Please report bugs to <
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
>.
C:\Safdar\GNU\GnuPG> |
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Written by Safdar Mirza
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Wednesday, 06 June 2007 |
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Let's say we want to clone disk c0t0d0 with c0t1d0 1) prvtoc /dev/rdsk/c0t0d0s2 | fmthard -s - /dev/rdsk/c0t1d0s2 2) use newfs to create the filesystems on c0t1d0. 3) use installboot to install bootblocks on the new disk (c0t1d0). 3) create a temporary mount point, say, /clone, 4) mount the new slice (say c0t1d0s0) at /clone. 5) use* * ufsdump 0f - / | (cd /clone; ufsrestore rf -) 6) unmount /clone. 7) repeat steps 4, 5, 6 for the rest of the slices of the new disk. 8) modify the /etc/vfstab in the new disk to use its slices. |
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Written by Safdar Mirza
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Wednesday, 06 June 2007 |
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Tools in order to get system date collection: EMC -> Grab, SP Collect, SUN -> Explorer Microsoft ->MPSRPT_PFE.exe http://www.microsoft.com/downloads/details.aspx?FamilyId=00AD0EAC-720F-4441-9EF6-EA9F657B5C2F&displaylang=en |
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Last Updated ( Tuesday, 24 June 2008 )
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Written by Safdar Mirza
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Wednesday, 06 June 2007 |
iops = 1000 (ms/s) / (average read seek time (ms) + (maximum rotational latency (ms) / 2)) maximum rotational latency = 60,000 (ms/min) / rotational speed (rpm) Rotational Speed (rpm) Max Rotational Latency (ms) 4200 14.3 5400 11.1 7200 8.3 10000 6.0 15000 4.0 For example, if we have a 73 GByte, 2.5" Seagate Saviio SAS drive which has a 4.1 ms average read seek and rotational speed of 10,000 rpm: iops = 1000 / (4.1 + (6.0 / 2)) = 140.8 By comparison, a 750 GByte, 3.5" Seagate Barracuda SATA drive which has a 8.5 ms average read seek and rotational speed of 7,200 rpm: iops = 1000 / (8.5 + (8.3 / 2)) = 79.0
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Last Updated ( Friday, 15 February 2008 )
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Welcome to Safdar.com - Safdar Mirza |
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Written by Web Master
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Saturday, 12 June 2004 |
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Welcome to Safdar.com - This is personal page for Safdar Mirza (Chicago). I keep up this page in order to stay in touch with friends and family around the globe. I also use this interface and many other interfaces in the background for my testing (Sand box) . If you have reached this page in search of Shabbir Safdar, then you are at wrong place. :) Please visit Safdar Shabbir at Safdar.Net. My Bread and Butter... Sun Microsystems. (Started from Solaris 2.5, 2.51, 2.6, Solaris 7 (someone at marketing decided to be cool), Solaris 8, Solaris 9 and Finally Solaris 10). BTW - Solaris 10 is very different monster - A great OS that you can depend upon for your production. In order to be productive, you have to find a good UNIX (Solaris) Admin and just for clarification, Linux Admin are very different then Solaris Admin. SAN - In past I have worked with Sun branded Hitachi storage and then I end up with EMC. I am a EMC proven professional now. I found both of them very interested. Both of them can cost you a lot of money but it is worth every single penny you will spend for your production. Now don't try to save money on hiring less experience admin!!! ESX - Lets go virtual .. I wonder who thought of this first??? Well here is something to consider. If you want to have an easy driven shop, with some linux admin, go with ESX otherwise if you have a big Solaris shop, feel free to go with Solaris 10. You can install Solaris on your wintel (intel/AMD) servers as well. Esx is easy to use interface and can make your job very easy if your production is not CPU hog. Windows - yep windows or should I call it Microsoft? Lets start with PC-DOS, MS-DOS, DOS 3.1, DOS 3.11, DOS 6.5, Windows 3.1, Windows 98, Windows 2K, Windows 2003 (finally something productive) and after so many release a real OS, Windows 2008. Thanks Microsoft, what took you so long? Thanks for introducing power shell. I was feeling very lonely running my .bat scripts in DOS style on windows 2003 servers. :) Finally a playground for me. |
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Last Updated ( Wednesday, 08 October 2008 )
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