15,766 reputation
11228
bio website ralstonrats.co.uk
location Scotland, United Kingdom
age 48
visits member for 4 years, 10 months
seen 22 hours ago

Dec
23
comment Website is being targeted by mail bots
....which begs the question...what is in your robots.txt file
Dec
15
comment How can I force soft raid to read only from one disk?
The first thing I'd be checking is the partition alighnment.
Nov
21
answered Mysqld.bin and php-fpm eating up all my CPU
Nov
18
revised Bonding multiple proxy server
added 162 characters in body
Nov
18
answered Bonding multiple proxy server
Nov
18
comment Copying from NFS mount crashes Linux client machine
This can occur with a heavily loaded NFS server - TCP is more resource heavy than UDP - hence you might start by using UDP if server and client don't have dynamic address translation in between.
Oct
28
awarded  Enlightened
Oct
28
awarded  Nice Answer
Oct
6
comment Centos server will not hold iptables configuration
@madhatter, I see no mention of what is currently in the chain in the original question.
Oct
3
answered Centos server will not hold iptables configuration
Sep
23
comment Why is DNS failover not recommended?
There are lots of different stories here being used as justification for casting RR DNS in a bad light. Regarding shuffling - the objective here is to support clients which don't properly implement the resolver with no net impact on those which do. Short TTLs don't work. RR DNS does work for browsers as clients, failover occurs in seconds not minutes or hours.
Sep
23
comment Why is DNS failover not recommended?
It'as my eperience that short TTLs DO NOT WORK across the internet. You might be running DNS servers that respect the RFCs - but there are a lot of servers out there which don't. Please don't assume this is an argument against Round Robin DNS - see also vmiazzo's answer below - I've run busy sites using RR DNS and tested it - it works. The only problems I encountered were with some Java based clients (not browsers) which didn't even try to reconnect on failure let alone cycle the list of hosts on an RST
Sep
23
comment Why should iscsi traffic be isolated?
Not to mention performance, performance and....performance.
Sep
23
comment PHP + AJAX cannot upload files larger than 100KB
"I cannot find any clue in any other log file" - then your system config is broken. If you have error logging enabled in PHP then the only erason a 500 internal server would get logged is if you are running CGI/FastCGI and the PHP process aborted - in which case you would have a core dump.
Sep
18
comment How bad is it really to install Linux on one big partition?
Related to the performance thing, I think it's also worth pointing out that, in the event of a filesystem filing up a quick response is needed, and 'df' will return useful information a lot faster than 'du -s $DIRNAME'
Sep
18
awarded  Popular Question
Sep
17
comment How can a bog-standard Wordpress install break PHP?
Zend is the execution engine in PHP - you can't disable it. This does appear to be a bug in the PHP interpreter/compiler/runtime (it souldn't be possible to trigger a segmentation fault from your PHP code).
Sep
8
comment Best practice for organisation wide user management
Most of what you are describing seems to come under the banner of Identity and Access Management. There are off-the-shlef solutions for this, but they are not cheap. See also sailpoint.com/GartnerIGAMagicQuadrant
Sep
6
answered Limiting process CPU usage
Aug
26
comment Will an average PC run a 10 concurrent write intensive request with 50MB daily database server?
Was right with you right up to the point where you mentioned SSDs (particularly in RAID). Given the data volumes here, a single xonventional disk would cope with the capacity - but would be a really bad idea from the point of view of reliability. Given the relative inexperience of the OP and the delays in resourcing, using SSDs could cause big outages a few years down the road.