Dear Gurus
My company has a wireless handheld C program as text-mode workstations in remote sites. We suspected that the program get interrupted sometimes because of out-of-wireless access and hence resulted in db record locking and other issue. It did trouble us a lot.
Is it possible to use... (2 Replies)
Hi All,
I have util-linux upgrade that I need to do on redhat 4 ent. Does this going to interruption with the operation of the OS or application? Or this will be straight forward upgrade that will not make a harm or downtime of the OS.
Thank you for any comments you may add. (3 Replies)
Hello dear community!
I have faced with a trouble which I trying to solve for a long time.
I have service of video streaming. And I have web and video roles for servers.
Video servers upload video using SWFUpload and then stream it.
Issue became during uploading of video.
In random time... (3 Replies)
Hi all,
I need ssh in shell script. My requirement is:
- Take user_name and password from user (in PHP)
- Pass this to shell script which will:
- connect via ssh
- Run sql query
- Pass the results back in PHP
- Put the results to website.
I know PHP has libraries for ssh and ftp, but... (3 Replies)
how to run an already developed script run against a list of ip addresses solaris 8 question.
the script goes away and check traffic information, for example
check_GE-VLANStats-P3 1.1.1.1
and returns the results ok.
how do I run this against an ip list? i.e a list of 30 ip addresses (26 Replies)
Hi
Through nimadm (alt_disk_install) we done aix os upgrade in 3 lpars from aix 5.3 to aix 6.1. upgrade was successful.
After the upgrade users complained on their ssh keys.
Does upgrading aix version affects the user's ssh keys ? If so please suggest on options to correct them. (1 Reply)
Hello all,
I'm trying to write a script to gather and send data and it works just fine at the bash command line, but when executing from CRON, it does not run properly.
My scripting skills are pretty limited and there's probably a better way, but as I said it works at the command line, but... (12 Replies)
I would like to make a function or command that checks for keyboard input without interrupting the program and exits the program when a key is pressed (perhaps the 'q' key).
The program below monitors and prints/executes commands upon a change in primary (mouse selection) or clipboard buffer. If... (4 Replies)
Linux System having all Perl, Python, PHP (and Ruby) installed
From a Shell script, can call a Perl, Python, PHP (or Ruby ?) file
eg
eg
a Shell script run in a case statement call to run a php file, also Perl or/and Python file???
Like
#!/usr/bin/bash
....
....
case $INPUT_STRING... (1 Reply)
Discussion started by: hoyanet
1 Replies
LEARN ABOUT CENTOS
amcrypt-ossl-asym
AMCRYPT-OSSL-ASYM(8) System Administration Commands AMCRYPT-OSSL-ASYM(8)NAME
amcrypt-ossl-asym - crypt program for Amanda asymmetric data encryption using OpenSSL
SYNOPSIS
amcrypt-ossl-asym [-d]
DESCRIPTION
amcrypt-ossl-asym uses OpenSSL to encrypt and decrypt data. OpenSSL is available from www.openssl.org. OpenSSL offers a wide variety of
cipher choices ( amcrypt-ossl-asym defaults to 256-bit AES) and can use hardware cryptographic accelerators on several platforms.
amcrypt-ossl-asym will search for the OpenSSL program in the following directories:
/bin:/usr/bin:/usr/local/bin:/usr/ssl/bin:/usr/local/ssl/bin.
GENERATING PUBLIC AND PRIVATE KEYS
RSA keys can be generated with the standard OpenSSL commands, e.g.:
$ cd /var/lib/amanda
$ openssl genrsa -aes128 -out backup-privkey.pem 1024
Generating RSA private key, 1024 bit long modulus
[...]
Enter pass phrase for backup-privkey.pem: ENTER YOUR PASS PHRASE
Verifying - Enter pass phrase for backup-key.pem: ENTER YOUR PASS PHRASE
$ openssl rsa -in backup-privkey.pem -pubout -out backup-pubkey.pem
Enter pass phrase for backup-privkey.pem: ENTER YOUR PASS PHRASE
Writing RSA key
To generate a private key without a passphrase, omit the -aes128 option. See openssl_genrsa(1) for more key generation options.
Note that it is always possible to generate the public key from the private key.
KEY AND PASSPHRASE MANAGEMENT
amcrypt-ossl-asym uses the public key to encrypt data. The security of the data does not depend on the confidentiality of the public key.
The private key is used to decrypt data, and must be protected. Encrypted backup data cannot be recovered without the private key. The
private key may optionally be encrypted with a passphrase.
While the public key must be online at all times to perorm backups, the private key and optional passphrase are only needed to restore
data. It is recommended that the latter be stored offline all other times. For example, you could keep the private key on removable media,
and copy it into place for a restore; or you could keep the private key online, encrypted with a passphrase that is present only for a
restore.
OpenSSL's key derivation routines use a salt to guard against dictionary attacks on the pass phrase; still it is important to pick a pass
phrase that is hard to guess. The Diceware method (see www.diceware.com) can be used to create passphrases that are difficult to guess and
easy to remember.
FILES
/var/lib/amanda/backup-privkey.pem
File containing the RSA private key. It should not be readable by any user other than the Amanda user.
/var/lib/amanda/backup-pubkey.pem
File containing the RSA public key.
/var/lib/amanda/.am_passphrase
File containing the passphrase. It should not be readable by any user other than the Amanda user.
SEE ALSO amanda(8), amanda.conf(5), openssl(1), amcrypt-ossl(8)
The Amanda Wiki: : http://wiki.zmanda.com/
AUTHOR
Kevin Till <kevin.till@zmanda.com>
Zmanda, Inc. (http://www.zmanda.com)
NOTES
1. www.openssl.org
http://www.openssl.org/
2. www.diceware.com
http://www.diceware.com/
Amanda 3.3.3 01/10/2013 AMCRYPT-OSSL-ASYM(8)