Questions tagged [uniqueidentifier]
The uniqueidentifier tag has no usage guidance.
10
questions
1
vote
1answer
82 views
Can HAProxy generate a UUID based unique connection id?
I have an HAProxy load balancer that I would like to use to tag requests with a unique id (X-Unique-ID header) so that I can correlate events between logs in multiple systems.
HAProxy has a feature ...
1
vote
0answers
249 views
How to set cookie to md5 of UNIQUE_ID in Apache?
I'm currently creating unique visit_id cookie in Apache with following code:
RewriteCond "%{HTTP_COOKIE}" "(^|;)\s*visit_id\s*=([A-Za-z0-9@-]+)" [NC]
RewriteRule ".?" - [CO=visit_id:%2:.www.mydomain....
1
vote
1answer
1k views
Apache: X-Request-ID like in Heroku
I like X-Request-ID:
The Heroku router generates a unique request ID for every incoming HTTP request that it receives. This unique ID is then passed to your application as an HTTP header called X-...
1
vote
3answers
91 views
Is it possible to detect that a database connection is to a copy rather than to the original database? [closed]
I have an application that needs to know if it is connected to the original database that it was installed with or if the connection is to a copy of that database. Is there any known method to know if ...
2
votes
1answer
192 views
MAC and IP address text-identicon as avatar
I would like to create something like identicons but not with images but with a unique word for each IP-Addresses and MAC-Addresses.
create an easy to remember alias for a mac address, that is unique ...
2
votes
2answers
1k views
Clone CentOS 6.0 Unique identifiers
when cloning CentOS (minimal install + nginx, tomcat, postgres all not running) in a VMware virtual environment what unique identifiers are present on the cloned machine?
The information I have found ...
27
votes
6answers
19k views
Is a hard drive's serial number globally unique?
On Linux I can use smartctl to get a hard drive's vendor, model, firmware revision and serial number:
# smartctl -a /dev/sdb
smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build)
...
2
votes
3answers
9k views
What is the uSNCreated property in Active Directory? Is it unique?
I need a way to identify users that won't change if our e-mail or username naming conventions change; they have in the past. We use LDAP, but our international offices use Active Directory, so I'm a ...
0
votes
2answers
3k views
Need tool to change Hard Disk unique ID
There was a tool called PB Downforce that did something like this. It has been discontinued as it was buggy and stopped working for its purposes. So, is there any alternative? I have a licensed piece ...
0
votes
1answer
453 views
Changing an MSSQL clustered index field from containing “random” GUIDs to sequential GUIDs - how will it affect indexes
We have an MSSQL database in which all the primary keys are GUIDs (uniqueidentifiers). The GUIDs are produced on the client (in C#), and we are considering changing the client to generate sequential (...
