5,845 reputation
11433
bio website limepepper.co.uk
location London, United Kingdom
age 38
visits member for 4 years, 2 months
seen Sep 19 at 4:33

I spend my professional time working with Linux server technologies.

I previously obtained an RHCE, and studied Computing and Statistics for an undergraduate degree and am currently working through a Medicinal Chemistry MSc.

Have made some minor contributions to some open-source projects on github; https://github.com/tolland

and maintain a terrible ranty, unresearched speculation blog on blogspot.co.uk; http://take-your-vitamins.blogspot.com/

None of this is fit for human consumption.


Jul
31
comment Desperate: statd timed out, lockd cannot monitor / unmonitor
also grep for statd in whichever files your OS keeps it's system log; grep statd /var/log/messages*
Jul
31
comment Desperate: statd timed out, lockd cannot monitor / unmonitor
is statd running? ps -ef | grep -v grep | grep statd, if so, which interfaces/ports does it have? netstat -lnp | grep rpc.statd, if not, start it, and paste back the output /sbin/rpc.statd -F -d
Jun
15
comment Passwordless SSH key copied from one server to another now asks for passphrase
why not -vv to show the auth negotiation.. !!! ;-)
Jun
15
comment Going from Vagrant in development to chef-solo in production, and getting a “FATAL: NoMethodError: undefined method `delete' for #<Chef::Role” error
you can give the chef-solo -l debug options to get some verbose logging (pastebin.com that, or open a ticket on opscode.com with that output)
Jun
15
comment One hostname and two servers in different countries
see point 3. for services providing Geo-aware DNS, which would avoid the need to send an HTTP request first.
Jun
15
comment One hostname and two servers in different countries
Yes, as long as the user is not totally blocked from the US site, the US site only has to serve back a small amount of data-just the enough for the "Location: http://www.secondsite.vi"; header which is usually only 200-300 bytes. The remainder of the request goes correctly to the fast local server, because all the content of the index.html file correctly points to http://www.secondsite.vi/whatever.jgp
Jun
14
comment Going from Vagrant in development to chef-solo in production, and getting a “FATAL: NoMethodError: undefined method `delete' for #<Chef::Role” error
Can you post your Vagrantfile and some lines of context from /var/chef/cache/chef-stacktrace.out which show where the error happens (line nos), and explain how you are passing the roles to the server instance of chef-solo?
Oct
6
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
@HopelessN00b funny, I got this email today ..."Now please don’t use me as the source as I don’t want to get into trouble at work as they have an IT guy who seems to think it’s great so I don’t want to tread on anyone’s toes.", so they are not even raising tickets, because they don't want to contradict the local guys. So the users are not even raising tickets for the issues.
Oct
6
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
No, I get one chance to install some agent by a local tech guy, which won't have any remote access to send logs, and I can ask someone to collect the results a week later. (see the updated question for my "space shuttle" metaphor for how I can do this)
Oct
5
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
ok, so tomorrow I'm going to sit there with a windows box and try and make it hang, and record the metrics off performance monitor to see what values are associated with "unresponsiveness" and report back ;-)
Oct
5
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
If I could detect the "unresponsiveness", I could write a VBs script to copy the relevant logs off the event logs and make a log file which could be collected by a local tech.
Oct
5
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
Think of it like the space shuttle. Once the thing is launched, that is it. Its launched and you are stuck with what is installed. So there is no remote management of the machines that I have access to, and I can't sit and look at logs. All the cases would have to be worked out before.
Oct
5
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
So I don't have access to the machines, and I doubt they would be letting some random techie from a sub-contractors sub-contractor take arbitrary data off the machine...
Oct
5
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
Ideally, I'd like to start by detecting the "unresponsive state", then I can work back from that, by pulling the metrics you mention... say leading up to the "hang", ie is IO increasing, CPU, some app started etc... At the moment as you mention there are too many variables to track, so I need to slim it it down.
Oct
4
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
unfortunately I don't have access to any of that. The best I can hope for is an app to run on the box taking metrics.
Oct
4
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
what client tool for this?
Oct
4
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
I could make a log entry every 1 seconds, and then parse the text file for missing values
Oct
4
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
if the machine was completely hung, then it wouldn't respond to ping, or write log events, so presumably I could detect breaks in logging to the event log
Oct
4
comment I am looking for a tool to measure or detect “unresponsiveness” of a desktop PC
so we have the logs from the server side, and the client is not even connected. The problem seems to be possibly that it is slow recovering from hibernation, but the UX report is not clear. Also I don't have direct access to the machines, nor to the nurses.
Sep
27
comment decrypting AES files in an apache module?
If you are referring to the other answer, then you should probably have made your "Don't roll your own crypto. answer" as a comment to that instead.