I just realized my solution above won't work as-is. It won't work because over time, a MAC address will be assigned to different IPs. What you can do, then, is merge the two files together by date-time, and then run a modified version of the script:
(The last sort option tries to make sure DHCP always appears first for the same second.)
Now all the lines should be merged in order of time (hopefully). Then the script should work fine. It's basically the same code... just organized differently to process everything in the same stream. For input, provide the sorted output from the step above.
Hi,
I would like to setup a FOR loop script to find out all the existing linux workstation in the network w/ ip address, hostname and linux version.
I created a basic FOR loop script:
for i in $(seq 1 254)
do
echo 10.72.169.$i >> result
ssh -o ConnectTimeout=3 root@10.72.169.$i... (14 Replies)
I need some help to write a C++ code that read and write the register of a sequencer. I have to make a code that relate the objects with the physical address but I am a bit confuse. Could someone suggest me how to proceed? in which parts do I split the code?
thanks (1 Reply)
We want to use RADIUS to authenticate our AIX server logins. Can anybody tell me how to set on AIX server up to use a Radius server to authenticate or point me to documentation on setting up AIX to use Radius to authenticate user login.
Our problem is that we have a few users that access our... (1 Reply)
I guess I probably ask a dumb question but why use RADIUS for authentication as there are many ways to do it, as authentication is basically a user/password check?
What is the benifit(s) of using it ?
Thanks! (3 Replies)
Hi,
I have to parse the dhcp.lease file and have to keep the most recent entry and remove the rest and also the number of lines between any two leases might not always be the same.
eg:
lease 5.5.5.252 {
starts Wed Jul 27 09:48:39 2011
ends Wed Jul 27 21:48:39 2011
tstp Wed Jul... (1 Reply)
Hello everyone, I have a question in regards to connecting with wpa_cli to a Radius server. I can connect fine through WPA Enterprise and WPA2 Enterprise, but I'm lost on trying to connect to Radius.
wpa_cli -iwlan0 set_network 0 ssid '"ssid"'
wpa_cli -iwlan0 set_network 0 key_mgmt WPA-EAP... (0 Replies)
Hi all
I have no idea what I am doing, I think I am learning...the previous linux admin left the company and I volunteered to help.
My first task is to create a user (X) account in the radius. I was able to do that.. This user (X) will be login in to a cisco device same as user (Z) .
... (3 Replies)
Hi,
we have multiple database instances running on solaris server like db1, db2 and db3. Below shown ipcs -pmb shared memory segment output. Using cpid value I want to relate to the database instances db1, db2 and db3. Please let me know how to do this?
$ ipcs -pmb
IPC status from <running... (9 Replies)
Discussion started by: baladelaware73
9 Replies
LEARN ABOUT OSX
mac
mac(1) User Commands mac(1)NAME
mac - calculate message authentication codes of the input
SYNOPSIS
/usr/bin/mac -l | [-v] -a algorithm [-k keyfile] [file...]
DESCRIPTION
The mac utility calculates the message authentication code (MAC) of the given file or files or stdin using the algorithm specified.
If more than one file is given, each line of output is the MAC of a single file.
OPTIONS
The following options are supported:
-a algorithm Specifies the name of the algorithm to use during the encryption or decryption process. See USAGE, Algorithms for details.
Note: Algorithms for producing general length MACs are not supported.
-k keyfile Specifies the file containing the key value for the encryption algorithm. Each algorithm has specific key material require-
ments, as stated in the PKCS#11 specification. If -k is not specified, mac prompts for key material using get-
passphrase(3C).
For information on generating a key file, see dd(1M) or System Administration Guide: Security Services.
-l Displays the list of algorithms available on the system. This list can change depending on the configuration of the crypto-
graphic framework. The keysizes are displayed in bits.
-v Provides verbose information.
USAGE
Algorithms
The supported algorithms are displayed with the -l option. These algorithms are provided by the cryptographic framework. Each supported
algorithm is an alias to the most commonly used and least restricted version of a particular algorithm type. For example, md5_hmac is an
alias to CKM_MD5_HMAC.
These aliases are used with the -a option and are case-sensitive.
Passphrase
When the -k option is not used during encryption and decryption tasks, the user is prompted for a passphrase. The passphrase is manipulated
into a more secure key using the PBKDF2 algorithm specified in PKCS #5.
EXAMPLES
Example 1: Listing available algorithms
example$ mac -l
Algorithm Keysize: Min Max
-----------------------------------
des_mac 64 64
sha1_hmac 8 512
md5_hmac 8 512
Example 2: Getting the message authentication code for a file
example$ mac -v -k mykey -a sha1_hmac /export/foo
sha1_hmac (/export/foo) = 913ced311df10f1708d9848641ca8992f4718057
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
SEE ALSO digest(1), dd(1M), getpassphrase(3C), libpkcs11(3LIB), attributes(5), pkcs11_softtoken(5)
System Administration Guide: Security Services
RSA PKCS#11 v2.11 http://www.rsasecurity.com/rsalabs/pkcs/pkcs-11
RSA PKCS#5 v2.0 http://www.rsasecurity.com/rsalabs/pkcs/pkcs-5
SunOS 5.10 23 Apr 2004 mac(1)