how to help out heartbeat

/sbin/arping -q -A -c 1 -I eth0 -s 10.6.1.10 10.6.1.10

quick check of top current process

top -b -n1 -d 3 | sed 1,7d |head -1

ctrap script

#!/bin/bash
ctrap(){
echo -ne "\033]0;"puppet"\007"
}
if [ $# -eq 1 ];then
trap ctrap SIGINT
echo -ne "\033]0;"$1"\007"
ssh $1
ctrap
exit 0
fi
ssh $*

mount ntfs in *bsd

http://lordhendrix.wordpress.com/2008/01/13/mounting-ntfs-to-freebsd-or-unix/

symon/symux/syweb installation on openbsd 4.4

mkdir /mnt/cdrom

mount /dev/cd0c /mnt/cdrom/

cd /

tar -zxvf /mnt/cdrom/4.4/i386/xbase44.tgz

ldconfig /usr/X11R6/lib /usr/local/lib

pkg_add -v http://ftp.openbsd.org/pub/OpenBSD/4.4/packages/i386/libart-2.3.20p0.tgz

pkg_add -v http://ftp.openbsd.org/pub/OpenBSD/4.4/packages/i386/png-1.2.28.tgz

pkg_add -v http://ftp.openbsd.org/pub/OpenBSD/4.4/packages/i386/rrdtool-1.2.23p0.tgz

pkg_add -v http://ftp.openbsd.org/pub/OpenBSD/4.4/packages/i386/wget-1.11.3.tgz

pkg_add -v http://ftp.openbsd.org/pub/OpenBSD/4.4/packages/i386/pcre-7.7p0.tgz

pkg_add -v http://ftp.openbsd.org/pub/OpenBSD/4.4/packages/i386/php5-fastcgi-5.2.6.tgz

pkg_add -v http://ftp.openbsd.org/pub/OpenBSD/4.4/packages/i386/php5-mbstring-5.2.6.tgz

echo "env -i PHP_FCGI_CHILDREN=5 PHP_FCGI_MAX_REQUESTS=1000 /usr/local/bin/php-fastcgi -q -c /var/www/conf/ -b 127.0.0.1:8888 &" > /root/run_php-fastcgi.sh && chmod 700 /root/run_php-fastcgi.sh

ln -s /var/www/conf/modules.sample/php5.conf /var/www/conf/modules

ln -fs /var/www/conf/php5.sample/mbstring.ini /var/www/conf/php5/mbstring.ini

mkdir /var/www/tmp



tar zxvf ./syweb-0.59.tar.gz 

tar zxvf ./symon-2.80.tar.gz 

cd symon

make && make install

cp ./symon/symon.conf /etc/symon.conf

cp ./symux/symux.conf /etc/symux.conf

cp ./symon/hifn_test.layout /var/www/symon/

useradd -d /var/empty -L daemon -c 'symon Account' -s /sbin/nologin _symon

/usr/local/libexec/symon

mkdir /var/www/symon /var/www/symon/rrds /var/www/symon/rrds/localhost

#fix up symux.conf here

./symux/c_smrrds.sh all





echo > /etc/symon.conf <#

# Demo configuration for symon. See symon(8) for BNF.

#



monitor { cpu(0),  mem,

          if(lo0),

          pf,

          mbuf,

#         sensor(0),

          proc(sshd),

          if(em0),

          io(wd0)

} stream to 127.0.0.1 2100

EOF





echo > /etc/symux.conf <#

mux 127.0.0.1 2100

     source 127.0.0.1 {

         accept { cpu(0), mem, pf,

               if(em0), 

               if(lo0), 

               io(wd0),

               df(sd0a) }



         datadir "/var/www/symon/rrds/localhost"

     }

EOF

regex for IP addresses

ifconfig | sed -n ‘/^[A-Za-z0-9]/ {N;/dr:/{;s/.*dr://;s/ .*//;p;}}’

Storage Foundation / VRTS Licensing Info

# vxlicrep > report.txt

convert vmdk from thick to thin

vmkfstools -i /vmfs/volumes/datastore1/somehost/somehost.vmdk /vmfs/volumes/datastore1/somehost/somehost-thin.vmdk -d 'thin' -a lsilogic

# adjust vmx and away you go.

my fave prompt

PS1='[\t][\u@\h:\w]$ '

backup your failing system hard drive and mount it under ubuntu

i heard some clicking coming from the hard drive of my openbsd firewall the other day. i have put a lot of time into this thing and i dont want to lose it. I have more hard drives, but i dont want to lose everything on this one. this system run on an an old Dell b733r, PIII w/256MB RAM. I love it. Its Perfect.


#on failing host, do not skip this critical step
disklabel -v wd0c > failing_host_disklabel.info && scp ./failing_host_disklabel.info root@stable_host:.

#on stable host
nc -p 2222 -l | bzip2 -d | dd of=/root/failing_host.img

#on failing host
bzip2 -c /dev/wd0c | nc stable_host 2222

#wait for completion ...

#on stable host

#test to see if image is good
sfdisk -l failing_host.img
sfdisk -d failing_host.img
fdisk -l -u failing_host.img

#take offset from disklabel.info: offset * bytes/sector = [value]
#default value for dd block size (bytes/sector) is 512, adjust as necessary

mount -v -o ro,loop,offset=[value],ufstype=44bsd -t ufs ./failing_host.img /mnt/failing_host

#if it fails and you get a message in dmesg that says:
#
#[some.date] ufs_read_super: bad magic number
#
# it means you have the wrong offset value


loop-aes-utils, smbfs and Ubuntu

The following was experienced on Ubuntu Desktop 9.10

if you install loop-aes-utils, and then install smbfs, the cryptoloop.ko is removed from the kernel.

`mount` will give you errors like:

ioctl: LOOP_SET_STATUS: Invalid argument, requested cipher or key length (256 bits) not supported by kernel


`modprobe loop` will give you:

FATAL: Module loop not found


well, not sure what the whole story is, but the following fixes it.

`modprobe cryptoloop`

resolve IP's of established connections using pfctl


pfctl -s state | grep 'EST' | grep -v '<-' | awk '{print $6}' | cut -d":" -f1 | xargs dig +short -x


Firefox Autoconfig

http://mit.edu/~firefox/www/maintainers/autoconfig.html

Install nginx with php-frm and mysql


#!/bin/sh

sudo apt-get install nginx
cd /tmp
wget http://us.archive.ubuntu.com/ubuntu/pool/main/k/krb5/libkrb53_1.6.dfsg.4~beta1-5ubuntu2_i386.deb
wget http://us.archive.ubuntu.com/ubuntu/pool/main/i/icu/libicu38_3.8-6ubuntu0.2_i386.deb
sudo dpkg -i *.deb
sudo echo "deb http://php53.dotdeb.org stable all" >> /etc/apt/sources.list
sudo apt-get update
sudo apt-get install php5-cli php5-common php5-suhosin php5-mysql php5-curl php-pear php5-imap php5-memcache php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl
sudo apt-get install php5-fpm php5-cgi

echo > /etc/nginx/sites-enabled/default << EOF

server
{
listen 80;
server_name localhost;
access_log /var/log/nginx/localhost.access.log;

## Default location
location /
{
root /var/www/nginx-default;
index index.php;
}

## Images and static content is treated different
location ~* ^.+.(jpg|jpeg|gif|css|png|js|ico|xml)$
{
access_log off;
expires 30d;
root /var/www/nginx-default;
}

## Parse all .php file in the /var/www directory
location ~ .php$
{
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_pass backend;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /var/www/nginx-default$fastcgi_script_name;
include fastcgi_params;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_intercept_errors on;
fastcgi_ignore_client_abort off;
fastcgi_connect_timeout 60;
fastcgi_send_timeout 180;
fastcgi_read_timeout 180;
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;
fastcgi_temp_file_write_size 256k; }

## Disable viewing .htaccess & .htpassword
location ~ /\.ht { deny all; }
}
upstream backend { server 127.0.0.1:9000; }
EOF
/etc/init.d/php5-fpm start
/etc/init.d/nginx start

generate reasonable passwords at the commmand line


cat /dev/urandom| tr -dc 'a-zA-Z0-9-_!@#$%^&*()_+{}|:<>?='|fold -w 12| head -n 4| grep -i '[!@#$%^&*()_+{}|:<>?=]'


generate strong random passwords at the command line


cat /dev/urandom| tr -dc 'a-zA-Z0-9-_!@#$%^&*()_+{}|:<>?='|fold -w 12| head -n 4| grep -i '[!@#$%^&*()_+{}|:<>?=]'


remove serverbeach backdoor

when you lease a server from ServerBeach, they install a backdoor on your server. Here's how to remove it when you choose CentOS or similar redhat type system.

service sbadm stop
chkconfig --del sbadm
rm -f /etc/ssh/.sbadm_config
rm -f /usr/sbin/sbadm
rm -rf /usr/local/webmin-*
rm -f /etc/init.d/sbadm

perl modules

http://www.cpan.org/modules/by-module/

linux boot disk fun

note to self. never, ever, ever ...leave the custom linux boot disk you made, with the fancy all-in-one kickstart file, in the cd drive of your laptop and reboot.

do not allow it to persist in your cd drive, for even the most trivial length of time for which it is unnecessary...REMOVE IT.

make a bootable custom rhel install disk

run from the root of where you have copied the RHEL disk to and your ks.cfg resides.

# mkisofs -o /root/x/rhel43_app.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -V -T ./