/dev/sd* UUID

Linux

root@mx:/etc# blkid
/dev/sda1: LABEL="boot" UUID="e40fb979-51bf-4b8d-b09f-77eda3e74cf0" SEC_TYPE="ext2" TYPE="ext3"
/dev/sdb: UUID="1c01e3cb-3930-4cc2-8da2-4cc6acff4adb" SEC_TYPE="ext2" TYPE="ext3"
root@mx:/etc#

kernel.panic

Linux

ubuntu -> kernel.panic

Читать дальше →

Как сохранить правила iptables после перезагрузки Ubuntu?

Linux

iptables-save > /var/lib/iptables/rules

cd /etc/network/if-up.d
root@s3:/etc/network/if-up.d# cat iptables
#!/bin/sh
/sbin/iptables-restore < /var/lib/iptables/rules
root@s3:/etc/network/if-up.d#

remote copy

Linux


tar zcvfp - /var/www/dir/data/www | ssh user@9.25.12.110 "cat > ~/from_somehost.tar.gz"

ssh bruteforce

Linux

просто и без лишних движений.

iptables -A INPUT -p tcp -m state --state NEW --dport 22 -m recent --update --seconds 90 -j DROP
iptables -A INPUT -p tcp -m state --state NEW --dport 22 -m recent --set -j ACCEPT

определить железо

Linux

[root@vds02 ~]# dmidecode |less
# dmidecode 2.11
SMBIOS 2.4 present.
45 structures occupying 1406 bytes.
Table at 0xCFF6A000.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
        Vendor: Phoenix Technologies LTD
        Version: 6.00
        Release Date: 05/29/2007
        Address: 0xE54F0
        Runtime Size: 109328 bytes
        ROM Size: 1024 kB
        Characteristics:
                PCI is supported
                PNP is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                ESCD support is available
                Boot from CD is supported
                Selectable boot is supported
                EDD is supported
                3.5"/2.88 MB floppy services are supported (int 13h)
                ACPI is supported
                USB legacy is supported
                LS-120 boot is supported
                ATAPI Zip drive boot is supported
                BIOS boot specification is supported
                Targeted content distribution is supported

Handle 0x0001, DMI type 1, 27 bytes
System Information
        Manufacturer: Supermicro
        Product Name: X7DBR-3
        Version: 0123456789
        Serial Number: 0123456789
        UUID: 53D19F64-D663-A017-8922-003048325CFA
        Wake-up Type: Power Switch
        SKU Number: Not Specified
        Family: Not Specified

Handle 0x0002, DMI type 2, 8 bytes
Base Board Information
        Manufacturer: Supermicro
        Product Name: X7DBR-3
        Version: PCB Version
        Serial Number: 0123456789
.....................................

ubuntu adaptec arcconf

Linux

берем утилиту с оф.сайта адптека «Adaptec Storage Manager»
забираем.


chmod +x arcconf
apt-get install libstdc++5
./arcconf GETCONFIG 1

видим

Controllers found: 1
----------------------------------------------------------------------
Controller information
----------------------------------------------------------------------
   Controller Status                        : Optimal
   Channel description                      : SAS/SATA
   Controller Model                         : Adaptec 5405
   Controller Serial Number                 : 3E0213008F5
   Physical Slot                            : 6
   Temperature                              : 44 C/ 111 F (Normal)
   Installed memory                         : 256 MB
   Copyback                                 : Disabled
   Background consistency check             : Disabled
   Automatic Failover                       : Enabled
   Global task priority                     : High
   Performance Mode                         : Default/Dynamic
   Stayawake period                         : Disabled
   Spinup limit internal drives             : 0
   Spinup limit external drives             : 0
   Defunct disk drive count                 : 0
   Logical devices/Failed/Degraded          : 1/0/1
   SSDs assigned to MaxCache pool           : 0
   Maximum SSDs allowed in MaxCache pool    : 8
   MaxCache Read Cache Pool Size            : 0.000 GB
   MaxCache flush and fetch rate            : 0
   MaxCache Read, Write Balance Factor      : 3,1
   NCQ status                               : Enabled
   Statistics data collection mode          : Enabled
   --------------------------------------------------------
   Controller Version Information
   --------------------------------------------------------
   BIOS                                     : 5.2-0 (18937)
   Firmware                                 : 5.2-0 (18937)
   Driver                                   : 1.2-0 (29801)
   Boot Flash                               : 5.2-0 (18937)
   --------------------------------------------------------
   Controller Battery Information
   --------------------------------------------------------
   Status                                   : Not Installed

----------------------------------------------------------------------
Logical device information
----------------------------------------------------------------------
Logical device number 0
   Logical device name                      : raid6
   RAID level                               : 6 Reed-Solomon
   Status of logical device                 : Suboptimal, Fault Tolerant
   Size                                     : 12393462 MB
   Stripe-unit size                         : 64 KB
   Read-cache mode                          : Enabled
   MaxCache preferred read cache setting    : Disabled
   MaxCache read cache setting              : Disabled
   Write-cache mode                         : Disabled (write-through)
   Write-cache setting                      : Disabled (write-through)
   Partitioned                              : Yes
   Protected by Hot-Spare                   : No
   Bootable                                 : Yes
   Failed stripes                           : No
   Power settings                           : Disabled
   --------------------------------------------------------
   Logical device segment information
   --------------------------------------------------------
... skip ...
Command completed successfully.

Ubuntu

Linux

в логах

May 10 03:49:47 mx rsyslogd-2039: Could not open output pipe '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]

идем в

/etc/rsyslog.d

убираем в 50-default.conf

##daemon.*;mail.*;\
##      news.err;\
##      *.=debug;*.=info;\
##      *.=notice;*.=warn       |/dev/xconsole

ubuntu update

Linux

делаем
apt-get update

получаем

W: Не удалось получить gzip:/var/lib/apt/lists/partial/ru.archive.ubuntu.com_ubuntu_dists_quantal_main_source_Sources  Хеш сумма не совпадает

W: Не удалось получить gzip:/var/lib/apt/lists/partial/ru.archive.ubuntu.com_ubuntu_dists_quantal_main_binary-amd64_Packages  Хеш сумма не совпадает

W: Не удалось получить gzip:/var/lib/apt/lists/partial/ru.archive.ubuntu.com_ubuntu_dists_quantal_universe_binary-amd64_Packages  Хеш сумма не совпадает

W: Не удалось получить gzip:/var/lib/apt/lists/partial/ru.archive.ubuntu.com_ubuntu_dists_quantal_multiverse_binary-amd64_Packages  Хеш сумма не совпадает

W: Не удалось получить gzip:/var/lib/apt/lists/partial/ru.archive.ubuntu.com_ubuntu_dists_quantal_universe_binary-i386_Packages  Хеш сумма не совпадает

E: Некоторые индексные файлы не скачались. Они были проигнорированы или вместо них были использованы старые версии.

rm /var/lib/apt/lists/* -vf

Изменение режима кеширования IO гостя

Linux


#!/bin/bash
if [ "$1" = "-T" ] ; then
        echo -n "©"
        exit 0
fi

mpath=`pwd`

if [ -n "$1" ] 
then
    mpath=$1
fi

. ${mpath}/pre-run.conf

DRIVELIST="$(echo "$DRIVELIST" | sed 's|cache=none|cache=writethrough|g')"
VNC=":${ID},password"
NNIC="nic,macaddr=${MAC},model=${MODEL}"
NTAP="tap,ifname=${IFACE}${ID},script=${UPSCRIPT},downscript=${DOWNSCRIPT}"
PIDFILE=${VDSPATH}/pidfile
MONITOR="unix:${VDSPATH}/monitor,server,nowait"
PADD="-rtc base=localtime,clock=host"

if [ -z "${VDSSERIAL}" ]
then
        SERIAL="unix:${VDSPATH}/serial,server"
else
        SERIAL=${VDSSERIAL}
fi

if [ -n "${INCOMING}" ] 
then
        /usr/bin/kvm -name ${NAME} -smp ${SMP} -boot ${BOOT} -vnc ${VNC} -net ${NNIC} -net ${NTAP} -m ${MEM} -monitor ${MONITOR} -serial ${SERIAL} -pidfile ${PIDFILE} -daemonize -enable-kvm ${DRIVELIST} -incoming "${INCOMING}" ${PADD}
else
        /usr/bin/kvm -name ${NAME} -smp ${SMP} -boot ${BOOT} -vnc ${VNC} -net ${NNIC} -net ${NTAP} -m ${MEM} -monitor ${MONITOR} -serial ${SERIAL} -pidfile ${PIDFILE} -daemonize -enable-kvm ${DRIVELIST} ${PADD}
fi

exit $?

http://forum.ispsystem.com/ru/showthread.php?p=121397