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You might look at the faillog command, if your systems are linux. However, as near as I can tell, this doesn't catch things like ssh keybased auth.

In all likelihood, the most comprehensive way...

"find" isn't going to do what you want it to. It doesn't keep track of concepts like "newest". If you had a file that was, say, created by the last run of whatever you're tracing, you could use the...

Huh. I could have sworn I got different results when I tested this. Now, though, it behaves as you describe. I will claim tiredness as my excuse.

use write() instead of printf(). printf() is buffered, and the child has a copy of the buffer so it also will bring "before" and then print after.

changing the first printf to
...

I think that you're probably right - it might very well be a start order issue.

To change the order, since you're running RH, edit the start scripts for named and ntpd in /etc/init.d and find the...

I don't think that will do what you describe.

sed -e 's/pattern/replacement/g'

is a search and replace pattern. In your example, there's no replace, and nothing will be returned.

You...

Really, the only way to do this functionally is with virtualization of the host(s). Or running them on separate boxes.

Consider a request to the two different servers. Assume two different IP...

/etc/nsswitch.conf determines the order that various datasources that map names and IPs are used. If you don't have any uncommented entries in that, I suppose that means that whatever the system...

I think all you need to do is

tail -f file | tr B F


to get what you want.

Tuning my.cnf settings is not trivial, and is very dependent on the application.

Run that script I linked to. It will suggest a lot of different things you can tune.

Also, most...

rdcwayx is absolutely correct. Good catch!

Generally speaking, if you've successfully installed via cpan, the module will be loaded into the system perl library directories, so all you need to do is

use Email::Stuff;


It looks like...

There are a lot you can find by google-ing. The one I like is here:

http://www.day32.com/MySQL/tuning-primer.sh (http://www.day32.com/MySQL/tuning-primer.sh)

I suspect that those temporary tables are being used to store large joins and other queries that you get as you use the site.

This indicates that your my.cnf file needs tuning. I would suggest...

Well, depending on what precisely is the case:

1) you can't log into the console as a non-root user because your users aren't in the right group for console access.
2) you normally could log into...

By default, standard syslogd only listens on the standard syslog port.

So, I suspect that you would either need to use iptables to do some port re-mapping, or recompile the syslogd program from...

You've almost got it.

find . -type f -name *.c | grep -l foo | xargs perl -ie "s/foo\(bar\)/foo\(bar1\)"

or something like that. Figure out what uniquely identifies your foo command call and...

Assuming you mean "when does a process fail to write to /dev/log?"

/dev/log is a semi-standard convention for syslog - syslog listens on this UNIX socket, and writes what is written there...

I think the issue is with the bit after ">>". The reason for this is that once you hit the shell redirect, the {} replacement no longer applies. I bet the one file you get is named "{}".

I would...

Just a few thoughts, necessarily general because you didn't specify any performance parameters or any information on where the nameserver will be placed in your network architecture.

I would start...

Yes, definitely put SElinux back in enforcing mode after that test.

If I'm reading your original post correctly:


$ wget http://localhost <--- works
$ telnet localhost 80
GET / HTTP/1.1...

Something like this:

find a \! \( -name a1 -o -name c2 -o -name d3 \)

Check SELinux, which I think comes enabled on Fedora.

As root:

# getenforce


If that returns "enforcing" then test to see if it's a problem by running


# setenforce Permissive


and...

Very nice. Thanks to all who contributed.

I had forgotten (if I ever knew) that you could use $ as a line marker.

It looks like your input file is all one "line", and there's a hard limit in awk for the number of fields (space separated since that's the default behavior without '-F' being used with awk).

I...