The explain tag has no wiki summary.
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0answers
33 views
How to know what indexes are being used in MySQL?
I have a table in my MYSQL database with many indexes created, but I don't know what of these indexes are useful and what are not. I'd like to know what are the indexes being used in production.
Is ...
1
vote
1answer
117 views
php5-fpm configuration pm - (node) Process manager settings nodes in more layman terms
I have the following configuration for php-fpm
[www]
listen = 127.0.0.1:9000
listen.allowed_clients = 127.0.0.1
user = www-data
group = www-data
pm = dynamic
pm.max_children = 50
pm.start_servers = ...
2
votes
3answers
286 views
Non technical explanation for Reverse Proxy
From Wikipedia "In computer networks, a reverse proxy is a type of proxy server that retrieves resources on behalf of a client from one or more servers. These resources are then returned to the client ...
2
votes
2answers
3k views
Can anyone explain VMWare vSphere in layman's terms?
Can anyone provide a brief explanation in layman's terms (as in "management friendly") of just what vSphere is, what can be done with it and why it's better than the alternatives?
Also, examples of ...
1
vote
3answers
623 views
Explain in Plain English about Entropy Available
If I run this command in Ubuntu
$ sudo cat /proc/sys/kernel/random/entropy_avail
it returns a number that indicates how much "entropy" is available to the kernel, but that's about all I know. What ...
5
votes
2answers
800 views
IP Routing - how does it work again?
Can someone explain how IP routing works to me?
E.g. if i ping 123.123.123.123, how does each router know which way to go as shown in a trace route dump.
0
votes
4answers
232 views
few basic questions on webhosting (namservers & dns records)
I bought a domain name on name.com & I want to use free webhosting on 110mb.com
By default name.com integrates services of Google apps. Name server entries are
ns1.name.com
ns2.name.com
...
1
vote
3answers
244 views
SMTP Servers, and ISPs
I'm doing a bit of research for work regarding SMTP servers. Basically, our company is bringing some work in-house that we've been doing remotely through other companies. We have the need to work with ...
2
votes
1answer
709 views
How to Explain a query in Postgres 8.3 that has bind variables
I need to explain an application generated SQL statement in Postgresql 8.3. I captured the sql statement in the log but it has a lot of bind variables. Is their any way that I can explain this sql ...
1
vote
2answers
131 views
ldirectord process disappears
I have 2 frontend apache webservers that are load balanced using ldirectord. ldirectord is kept running on one server or the other by heartbeat
Recently I upgraded these servers from Debian Etch to ...
