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1
vote
1answer
428 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
340 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
5k 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
1k 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
1k 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
242 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
265 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
842 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
152 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 ...