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| http://koding.com/ |
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| Far Cry 3 |
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| Contre Jour |
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| Contre-jour photography |
| Common | °C | °F |
|---|---|---|
100 C (Boiling)
|
100
|
212
|
60 C (Hot Drink)
|
60
|
140
|
40 C (Hot Bath)
|
40
|
~ 100
|
Body
|
32
|
98.6
|
30 C (Beach)
|
30
|
85
|
Perfection
|
22.22
|
72
|
20 C (Room)
|
20
|
~ 70
|
10 C (Chilly)
|
10
|
50
|
4 C (Refrigerator)
|
4
|
~ 40
|
0 C (Freezing)
|
0
|
32
|
-10 C (Bitter Cold)
|
-10
|
~ 15
|
-20 C (Freezer / 0 F)
|
-20
|
~ 0
|
-40 C = -40 F
|
-40
|
-40
|
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| xkcd Converting to Metric - http://xkcd.com/526/ |
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| Adobe Photoshop CS2 |
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| Choose site type and button type |
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| Print button in button bar |
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| Water Fountain (with Google "Auto Awesome" photo effect) |
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| UTA FrontRunner |
"Each year, millions of dollars in bank accounts, stock certificates, checks, insurance checks, bonds and dividends are turned over to the State of Utah because the owners cannot be located. Some of this money could belong to you!
It may take only a couple minutes of your time to see if you or a family member is listed. It's easy, it's free and it's yours."
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| A sample of the form I completed |
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| http://www.ksl.com/?sid=27969354 |
"A Utah-based tech company was recently named the fourth-fastest growing company in America. Many people may not be familiar with Fusion-io, but they deliver the data faster on all most computers."
# echo 1 > /proc/sys/kernel/panic
# dd if=/dev/random of=/dev/port
# cat /dev/port
# cat /dev/zero > /dev/memForcing an Alt-SysReq-c command from the console:
# echo c > /proc/sysrq-trigger
// source: force_panic.c
#ifdef __KERNEL__
/* Makefile :
obj-m := force_panic.o
KDIR := /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)
default:
$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
*/
#include <linux/module.h>
#include <linux/kernel.h>
static int __init panic_init(void) {
panic("force-panic");
return 0;
}
static void __exit panic_exit(void) {
}
module_init(panic_init);
module_exit(panic_exit);
#endif
Generate a kernel oops: (source)
static int crash_module_init(void) {
printf("crash module starting\n");
int *p = 0;
printk("%d\n", *p);
return 0;
}
static void crash_module_exit(void) {
printf("crash module exiting\n");
}
module_init(crash_module_init);
module_exit(crash_module_exit);
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| Example of a PSOD kernel stack trace screen |
## Kernel log - will output: vmkernel-log.1
# esxcfg-dumppart -L /vmfs/devices/disks/$( \
esxcfg-dumppart --get-active | awk '{print $1}' )
## Kernel core dump - will output: vmkernel-zdump.1
## Note: ESXi 5.x will put kernel dump here:
## /scratch/core/vmkernel-zdump.*
# esxcfg-dumppart -C -D /vmfs/devices/disks/$( \
esxcfg-dumppart --get-active | awk '{print $1}' )
# vsish -e set /reliability/crashMe/Panic
esx# vi /etc/pam.d/passwd
password requisite /lib/security/$ISA/pam_passwdqc.so \
retry=3 min=8,8,8,7,6 enforce=none
esx# passwd
esx# vi /etc/pam.d/system-auth
password requisite /lib/security/$ISA/pam_passwdqc.so \
retry=3 min=8,8,8,7,6 enforce=none
esx# passwd
esx# vi /etc/pam.d/common-password
password requisite /lib/security/$ISA/pam_passwdqc.so \
retry=3 min=8,8,8,7,6 enforce=none
esx# passwd
esx# vi /etc/pam.d/system-auth
password required /lib/security/$ISA/pam_passwdqc.so \
min=8,8,8,7,6 similar=deny match=0 enforce=none
esx# passwd
esx# vi /etc/pam.d/system-auth-generic
password required /lib/security/$ISA/pam_passwdqc.so \
min=8,8,8,7,6 similar=deny match=0 enforce=none
esx# passwd
esx# vi /etc/inetd.conf ssh stream tcp nowait root /sbin/dropbearmulti dropbear ...
esx# reboot
esx# vi /etc/ssh/sshd_config PermitRootLogin yes
esx# service sshd restart
# vmkload_mod -l # --list
# vmkload_mod -s some_module # --showinfoNote: This works in the same manner as modinfo on Linux
# esxcfg-module -g some_module # --get-options
# esxcfg-module -s 'parameter_a=1 parameter_b=test' some_moduleNote: This does not affect parameters on manual module load
# esxcfg-module -s '' some_module # --set-options
# esxcfg-module -d some_module # --disable
## write boot config, extra step for ESX 4.x only # esxcfg-boot -b
# esxcfg-module -e some_module # --enableNOTE: On ESXi 5.1 you will need to re-enable the module to even manually load the driver.
# vmkload_mod some_module # vmkload_mod some_module parameter_a=1 parameter_b=testNote: This works in the same manner as modprobe/insmod on Linux
# vmkload_mod -u some_module # --unloadNote: This works in the same manner as modprobe/rmmod on Linux
rm -f /etc/vmware/vmware.lic /etc/vmware/license.cfg reboot
rm -f /etc/vmware/vmware.lic /etc/vmware/license.cfg
reboot ; while true ; do
rm -f /etc/vmware/vmware.lic /etc/vmware/license.cfg
done
# For ESXi 5.0 rm -f /etc/vmware/vmware.lic /etc/vmware/license.cfg services.sh restart
# For ESXi 5.1 rm -r /etc/vmware/license.cfg cp /etc/vmware/.#license.cfg /etc/vmware/license.cfg /etc/init.d/vpxa restart
ssh-keygen
cp ~/.ssh/id_rsa.pub ~/.ssh/identity.pub
ssh-copy-id root@[SERVER]
ssh-copy-id -i ~/.ssh/id_rsa.pub root@[SERVER]
linux# ssh-copy-id -i ~/.ssh/id_rsa.pub root@[SERVER]
esx# cp /.ssh/authorized_keys /etc/ssh/keys-root/authorized_keys
esx# reboot
linux# ssh root@[SERVER]
linux# ssh-copy-id -i ~/.ssh/id_rsa.pub root@[SERVER]
esx# cp -r /.ssh /scratch
esx# cp -r /scratch/.ssh /
esx# reboot
linux# ssh root@[SERVER]
linux# ssh-copy-id -i ~/.ssh/id_rsa.pub root@[SERVER]
linux# ssh root@[SERVER]
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| "Golden Sunset" |
echo "hello" > /dev/ttyS02. Modify Grub to have Linux Kernel also send console output to Serial: (/boot/grub/grub.conf)
# splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
serial --unit=1 --speed=19200
terminal --timeout=8 console serial
title CentOS3. (Optional) Create serial virtual console, append to /etc/inittab: (useful for login through serial)
...
kernel ... console=tty0 console=ttyS0,19200n8
S0:23:respawn:/sbin/agetty -h -L ttyS0 19200 vt100
echo c > /proc/sysrq-trigger
answer.msg.serial.file.open = Append
