[nycbug-talk] Advanced UNIX Basics Management

[Marc Spitzer]

Ike,

I would also add the differences between standard tools, if you did
not plan on it already.
ps for example:
1: on centos it is system 5/posix flags and output, ie ps -ef
2: on the bsd's its well bsd output, ps wwauxx
Different calling conventions, output format and information available
but the same command

Also I would add truss/strace and friends, developer centered goodness.

tcpdump should be limited to two cases:
1: very simple usage of bpf, ie capture stiff from ip address 1.2.3.4
2: as a means of getting things to wire shark

and at the end give them a short version of your jails talk ;)

marc

On Wed, Sep 23, 2009 at 12:47 PM, Isaac Levy <isaac at diversaform.com> wrote:
> Hi All,
>
> Much like the 'Tips-And-Tricks' thread a few weeks back:
> At work, I'm charged with giving a talk to Developers and DBA's on the
> following topic:
>
>   "UNIX Process, Memory, and Disk- Userland Monitoring Tools for Non-
> UNIX developers"
>
> My company is a Java shop, with plenty of Ruby, Python, and loads of
> shell scripts running around- in BSD and Linux systems- so this talk
> is all about trying to get everyone on the same page with 'the classic
> basics'.
>
> --
> With that, I thought I'd hit list to see what folks would have any
> input?  What am I missing?
>
> The high-level outline is below, any comments/criticism is welcome,
> I'm looking for stuff I've missed-
>
> Best,
> .ike
>
>
>
> --
> Each section below is split into a 'read whatever is happening' part,
> and 'do something with whatever is happening' part- most devs' tasks
> at my company just need to have visibility into things like what part
> of their code is eating the system, basic issues.
>
> I am explicitly *not* looking for good 3rd party tools, (pstree, for
> example)- I am looking to cover the basics of what's just expected to
> be there on our typical stock UNIX systems- (FreeBSD and OpenBSD, and
> CentOS Linux here, to be precise).
>
> I'm also not really looking for DTrace type tools, that's a whole
> exploration on it's own- especially when it comes to apps which aren't
> written in C.
>
>
> ##############################
> - Userland/Kernel Structure Basics (2 minute spiel)
> - man(1) is your friend, so is dmesg(8)
>
> - Processes
>   - stats/info facilities
>     + using procfs(5)
>     + ps(1) (flags and some handy awk(1) parsing)
>     + top(1) (briefly, everyone knows top...)
>   - management tools
>     + kill(1), killall(1) (flags!)
>     + nice(1), renice(8)
>
> - Memory
>   - stats/info facilities
>     + ps(1) (flags and some handy awk parsing)
>     + top(1) (briefly, everyone knows top...)
>     + swapinfo(8)
>   - management tools
>     - swapon(8), swapoff(8)
>
>
> - Disk
>   - stats/info facilities
>     + iostat(8)
>     + df(1) and du(1)
>     + lsof(8) (non-stock on many UNIX systems, but worth mention?)
>     + top(1) disk i/o tricks
>   - management tools
>     + disk mount(8) basics
>     + nfs, living with it basics
>   - advanced but very useful for developers:
>     + memory filesystems (creating, using)
>       - disk-backed memory filesystems
>
> --
> Bonus Networking section, perhaps,
>
> - Network
>   - UNIX stats/info facilities
>     + ifconfig(8)
>     + netstat(1)
>     + tcpdump(1)
>   - UNIX management tools
>     + ifconfig(8)
>     + netstat(1)
>
> ##############################
>
>
>
> _______________________________________________
> talk mailing list
> talk at lists.nycbug.org
> http://lists.nycbug.org/mailman/listinfo/talk
>



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