Assumed knowledge questions, ok noob questions

[Elmerbug]

1) How to query Linux for version uname -a?
2) Hpw to query Apache for version?
3) How to query PHP for version?

[stevec]

For apache:

apache -v

or possibly:

apache2 -v

similarly for php:

php -v

provided you've got the command line interface version (CLI) installed as well as the apacahe module.

Otherwise, create the file phpinfo.php in the web root with the contents:

<?php
phpinfo();
?>

And browse to it for all details.


As for system info, you can use the command procinfo -a

Note: you might need to make sure you've got the correct packages installed. Eg for Debian or Ubuntu, you'll need to apt-get install sysutils if procinfo is not available.

Alternatively cd to the /proc directory which provides 'file-like' views onto the running system (which procinfo queries). Just view the files in there:

eg: version:

Linux version 2.6.12-10-386 (buildd@terranova) (gcc version 3.4.5 20050809 (prer
elease) (Ubuntu 3.4.4-6ubuntu8.1)) #1 Fri Sep 15 16:31:49 UTC 2006

cpuinfo:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 4
model name      : Intel(R) Xeon(TM) CPU 3.00GHz
stepping        : 3
cpu MHz         : 3002.350
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm pni monitor ds_cpl
cid cx16 xtpr
bogomips        : 5947.39

Also, depending on your distro - you could interrogate your package management system for the installed versions.