shukko·Mount LVM-based volumes from loopback full disk images için yorumlar kapalı

Mount LVM-based volumes from loopback full disk images

TURKCESI FULL EGLENCE!!!

Background:

1- .raw uzantili kvm disk imajimiz var.
bu dosya aslinda bildigin .img dosyasi
icinde sanal makinamizin diski var malum
ancak sanal disk imaji icinde makina diskimiz LVM
buyur buradan yak.
Bu LVM yi nasil aktif edipde disk imajimizi sistemimize mount edicezde
icinden 3 5 tane dosya alacagiz?

2- su link harika sekilde anlatmis

http://www.thegibson.org/blog/archives/467

3- kisaca soyle yapiyoruz

a- once bize lvm offset numarasi lazim ki onu uygun sekilde mount edelim
mount the whole disk image loopback: losetup /dev/loop0 sda.img

b- durumuna bakalim
fdisk -u -l /dev/loop0

Disk /dev/loop0: 250 GB, 250056737280 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488392065 sectors
Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System
/dev/loop0p1 * 63 401624 200781 83 Linux
/dev/loop0p2 401625 488392064 243987187 8e Linux LVM

c- bize lazim olan lvm bolumu start nosu 401625
her sektor 512 byte
o zaman 401625×512= 205632000 offset numarasi

d- losetup -d /dev/loop0 diyip bundan kurtulalim sev sadece lvm nin oldugu yeri lopplayalim
losetup /dev/loop0 sda.img -o205632000

e- lvm pvscan
diyip pvmize baktiktan sonra
lvm vgchange -ay
diyip aktif edelim
lvm lvs diyip mapper durumuna bakalim

f- ve mount edelim
mount /dev/mapper/VolGroup00-LogVol00 /eben1

gibi

Hoppacik
LVM nin te amina sokim bu arada…
Sevemedim gitti bunca yildir. Hep sorun hep sorun..
Getirdigi pek cok avantaj var ama bir sorun cikinca islem yapmasi tam eziyet…

shukko·yazilim yapicaksan bu asagidaki guzel ozetlemis için yorumlar kapalı

1) SELL A BRANDED MONTHLY LICENSE FOR $20/mo.
2) SELL A $200 BRANDED OWNED LICENSE – IT’S YOUR VEHICLE TO ADVERTISE FOR FREE
3) DON’T TRY TO INCLUDE SO MANY MODULES WITH XXX! GIVE DEVELOPERS A CHANCE TO DEVELOP FOR IT SO THAT YOU CAN HAVE AN ECOSYSTEM AROUND YOUR PLATFORM
4) MAKE IT EASY FOR DESIGNERS TO CREATE TEMPLATES
5) NEXT TIME YOU WANT TO DO CRAZY THINGS WITH PRICING MAKE AN ANNOUNCEMENT FIRST
6) DON’T LOCK DOWN YOUR FORUMS AND TRY TO HIDE – KEEP COMMUNICATIONS OPEN AND BUILD A STRONG COMMUNITY AROUND YOUR PRODUCT – AND KEEP A LINE OF COMMUNICATIONS OPEN FOR POTENTIAL CUSTOMERS
7) YOUR BEHIND THE 8 BALL RIGHT NOW, SO LEARN FROM THIS LESSON, AND LEARN WELL: THE MORE PEOPLE CAN AFFORD YOUR SOFTWARE, THE FURTHER IT WILL SPREAD AND IN TURN YOU WILL MAKE MORE MONEY!

shukko·directadmin 1 2 birsey için yorumlar kapalı

If you think you might have a spammer, check your /etc/virtual/usage directory for a larger than normal filesize.
Any authenticated sends will show up with this command:

cd /var/log/exim
grep ‘A=login:’ mainlog* | less
which will show all emails sent from your server which used smtp-authentication. This is useful to find any email accounts who’s passwords may have been compromised (guessed), or simply just abusive Users.

——-

cd /var/log/exim
eximstats mainlog > stats.txt
less stats.txt

———

Here are some useful exim commands. They’re useful if you have an overloaded queue and need to clear it out, or find out why the messagse are being piled up.

exim -M id #Try to send the message with id id

exim -qf #Tell exim to process the entire queue again
exim -qff #same as qf, but it will flush the frozen messages

exim -Mvl id #view the message log for message id
exim -Mvh id #view message id’s headers
exim -Mvb id #view message id’s body
exim -Mrm id #remove message id from the queue
exim -Mg id #fail and send a bounce to the sender
exim -bp | exiqsumm #Print summary of the messages in the queue
exiwhat #show what exim is doing right now
exim -bpc #show number of messages in the queue
exim -bp #print list of messages in the queue
The manual way to remove the entire queue is as follows

cd /var/spool
mv exim exim.old
mkdir -p exim/input
mkdir -p exim/msglog
mkdir -p exim/db
chown -R mail:mail exim
Then restart exim.

———-

shukko·centos 64 bit imap client setup for directadmin için yorumlar kapalı

once imap clienti kuralim bu script ile:


#!/bin/sh
# Script for PHP-IMAP installation. 0.1b
# Written by Martynas Bendorius (smtalk)

CWD=`pwd`
OS=`uname`

#Is it a 64-bit OS?
B64=0

B64COUNT=`uname -m | grep -c 64`
if [ "$B64COUNT" -eq 1 ]; then
B64=1
LD_LIBRARY_PATH=/lib64:/usr/lib64:/usr/local/lib64:/lib:/usr/lib:/usr/local/lib
export LD_LIBRARY_PATH
fi

if [ ! -e /usr/include/krb5.h ] && [ -e /etc/redhat-release ]; then
echo "Installing krb5-devel"
yum -y install krb5-devel
fi

VERSION=2006k
URL="ftp://ftp.cac.washington.edu/imap/old/imap-${VERSION}.tar.Z"
FILENAME=imap-${VERSION}
TARBALL=${FILENAME}.tar.Z

echo "Downloading ${TARBALL}..."
wget -O ${TARBALL} ${URL}
tar xzf ${TARBALL}
cd ${FILENAME}

echo "Installing ${FILENAME}..."

if [ ${OS} = "FreeBSD" ]; then
if [ ${B64} -eq 0 ]; then
make bsf
else
make bsf EXTRACFLAGS=-fPIC
fi
else
perl -pi -e 's#SSLDIR=/usr/local/ssl#SSLDIR=/etc/pki/tls#' src/osdep/unix/Makefile
perl -pi -e 's#SSLINCLUDE=\$\(SSLDIR\)/include#SSLINCLUDE=/usr/include/openssl#' src/osdep/unix/Makefile
perl -pi -e 's#SSLLIB=\$\(SSLDIR\)/lib#SSLLIB=/usr/lib/openssl#' src/osdep/unix/Makefile
if [ ${B64} -eq 0 ]; then
make slx
else
make slx EXTRACFLAGS=-fPIC
fi
fi

echo "Copying files to /usr/local/php-imap"
mkdir -p /usr/local/php-imap/include
mkdir -p /usr/local/php-imap/lib
chmod -R 077 /usr/local/php-imap
cp -f c-client/*.h /usr/local/php-imap/include/
cp -f c-client/*.c /usr/local/php-imap/lib/
cp -f c-client/c-client.a /usr/local/php-imap/lib/libc-client.a
cd ..
rm -rf ${FILENAME}

exit 0;

sonra

/usr/local/directadmin/custombuild/configure altinda uygun satiri ekleyelim


--with-imap=/usr/local/php-imap \
--with-imap-ssl

sonra

./build php n

hatta birde php.info uygun yere atip bakalim

shukko·nas4free test için yorumlar kapalı

Tests using dd

Write:
dd if=/dev/zero of=/mnt/RAIDZ/temp.dat bs=2048k count=50k
51200+0 records in
51200+0 records out
107374182400 bytes transferred in 446.230088 secs (240625151 bytes/sec) –> Which is roughly 230MB/s if I am correct

Read:
dd if=/mnt/RAIDZ/temp.dat of=/dev/null bs=2048k count=50k
51200+0 records in
51200+0 records out
107374182400 bytes transferred in 650.708923 secs (165011080 bytes/sec) –> 157MB/s

 

http://www.numion.com/calculators/units.html

100GB dosya yaziyor okuyor

yukaridaki test benim degil

benim 8×750 ZFSTANK 354MB/s yazdi — Super bir rakam bence – ZFS mirror bu arada – Raid10 gibi dusunmek lazim

Okumasida su an test oluyor

sonuc: 119 MB/s

burda bir sikinti var. Arastiralim bakalim nedendir..

shukko·Proxmox Software Raid – My Way or The highway :D için yorumlar kapalı
Not: software raid 10 ustune proxmox ve 2.x kurmak istiyordum ne zamandir.
bir kac farkli tutoriali inceledikten sonra bu asagidaki tutorialda karar kildim.
Su anda durum iyi gozukuyor bakalim..
 
orjinal link: http://forum.proxmox.com/threads/9468-Is-possible-to-make-raid-software-in-Proxmox-VE-2-x

Proxmox Software Raid

This is how we installed Proxmox with RAID10 to our test lab.
Change the device filenames according to your hardware setup.

All systems have 4 disks.

– start the debian squeeze installer
– activate the console ALT+F2
– create partitions on /dev/sda, /dev/sdb, /dev/sdc and /dev/sdd

Code:
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0003b8e5

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          61      489951   fd  Linux raid autodetect
/dev/sda2              62       38913   312078690   fd  Linux raid autodetect

– create /dev/md0 as RAID1 with 4 disks and a size of 100MB

Code:
mdadm --create /dev/md0 --level=1 --raid-devices=4 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1

– create /dev/md1 and /dev/md2 as RAID1 with 2 disks each and the remaining space

Code:
mdadm --create /dev/md1 --level=1 --raid-devices=2 /dev/sda2 /dev/sdb2
mdadm --create /dev/md2 --level=1 --raid-devices=2 /dev/sdc2 /dev/sdd2

– create the volumegroup pve and the logical volumes root, data and swap; don’t use the whole remaining diskspace for data. You need some Gigs for LVM snapshots.

Code:
pvcreate /dev/md1
pvcreate /dev/md2
vgcreate pve /dev/md1 /dev/md2
lvcreate -i 2 -L 16G -n swap pve
lvcreate -i 2 -L 100G -n root pve
lvcreate -i 2 -L 450G -n data pve

– create filesystems on it (we saw best performance with ext3)

Code:
mkfs.ext3 -E stride=32,stripe-width=64 /dev/pve/root
mkfs.ext3 -E stride=32,stripe-width=64 /dev/pve/data

– proceed with the installer, set the mountpoints:
RAID1 md0 -> /boot
LVM VG swap -> swap
LVM VG root -> /
LVM VG data -> /var/lib/vz

– after reboot install Proxmox as described here
http://pve.proxmox.com/wiki/Install_…Debian_Squeeze

After the Proxmox installation edit /usr/share/perl5/PVE/Storage.pm, /usr/share/perl5/PVE/VZDump/QemuServer.pm and /usr/share/perl5/PVE/VZDump/OpenVZ.pm and add the options “–stripes 2” to every “lvcreate” command.
You have to to this last step every time you update Proxmox.

notlarim:

1- bu %100 software raid 10 degil

yaptigimiz 4 diskde md0 da raid 1 boot

md1 ve md2 de de 2 ayri disk ile 2 ayri  raid 1 yapip

lvm ile riad 10 yapmak

degisik bi kafa

ben olsaydim boyle yapmazdim

ama bu amca guzel yapmis

2- debian kurulduktan sonra sabit ip ayarlamak gerek

nano /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
#allow-hotplug eth0
#iface eth0 inet dhcp
auto eth0
iface eth0 inet static
        address 192.168.0.100
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        gateway 192.168.0.1

ornegin

3- standart debian /etc/hosts dosyasi nanik yapiyor kurulumda onuda su sekilde degistirmeli
127.0.0.1       localhost
192.168.0.100    vm4.shukko.com        vm4
4- son bir sey daha vardi yazicaktim
unuttum
neyse salla gitsin 🙂

shukko·Cpan durmaksizin soru soruyor Perl gibi .. Sormasin herseye yes pls için yorumlar kapalı

Cpan durmaksizin soru soruyor Perl gibi .. Sormasin herseye yes pls

1- yum install cpan

2- cpan

3- cpan shelle girince

o conf prerequisites_policy follow

o conf commit

4- cpan -i bla bla

NOT EK: Yaptik

genede soruyor. Lanet Cpan Sican CIPAN BASI . YILANIN BASI

Sene olmus 2013 CPANMI KALDI

Spamassassin gibi …..

neyse az soruyor

simdilik 1 kez y ye bastim

onceden 500 kez basmak gerekliydi. Hayirlisi…