[nycbug-talk] Advanced UNIX Basics Management

[David Lawson]

>
> + Added sysstat, but perhaps not in the right place- since it  
> profiles so many different things?
>  - (noteworthy: no systat on fully loaded CentOS ... :( need to  
> install it via yum package)

That's weird, I could have sworn our stock CentOS installs had sar  
crons enabled, but we may be doing that in the kickstart rather than  
it being something CentOS does, I wrote them a long time ago.  sar is  
probably worth touching on as well, since you can get all kinds of  
useful trending and post-mortem analysis out of it and most developers  
don't know it's there, I've found.

> What else?
>
> Best,
> .ike
>
>
> ##############################
> - 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...)
>    + systat(1)
>  - 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)
>
> - Kernel Based Advanced Profiling Tools
>  - dtrace(1m), (FreeBSD, Solaris, MacOSX)
>  - oprofile(1), valgrind(1) (Linux, not part of stock CentOS/Ubuntu  
> Install!)
>
> ##############################
>