'LINUX'에 해당되는 글 258건

C:\>ftp 192.168.1.26
192.168.1.26에 연결되었습니다.
220 (vsFTPd 3.0.2)
200 Always in UTF8 mode.
사용자(192.168.1.26:(none)): anonymous
331 Please specify the password.
암호:
500 OOPS: vsftpd: refusing to run with writable root inside chroot()
500 OOPS: 원격 호스트에 의해 연결이 닫혔습니다.

anon_upload_enable=YES
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
anon_umask=0022

[root@localhost ~]# pvcreate /dev/sda3
  Device /dev/sda3 not found (or ignored by filtering).
[root@localhost ~]# reboot
login as: root
root@192.168.1.26's password:
Last login: Tue Sep 19 12:32:31 2017 from 192.168.1.2
[root@localhost ~]# pvcreate /dev/sda3
  Physical volume "/dev/sda3" successfully created.
[root@localhost ~]# pvscan
  PV /dev/sda2   VG cl              lvm2 [15.00 GiB / 0    free]
  PV /dev/sda3                      lvm2 [44.00 GiB]
  Total: 2 [59.00 GiB] / in use: 1 [15.00 GiB] / in no VG: 1 [44.00 GiB]

[root@localhost ~]# vgextend cl /dev/sda3
  Volume group "cl" successfully extended
[root@localhost ~]# vgdisplay
  --- Volume group ---
  VG Name               cl
  System ID
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  4
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               58.99 GiB
  PE Size               4.00 MiB
  Total PE              15102
  Alloc PE / Size       3839 / 15.00 GiB
  Free  PE / Size       11263 / 44.00 GiB
  VG UUID               ny3hEe-LQMt-0UYe-nVMT-hHlG-kRhN-y3LqmT

[root@localhost ~]# lvextend /dev/cl/root -l +11263
  Size of logical volume cl/root changed from 13.39 GiB (3429 extents) to 57.39 GiB (14692 extents).
  Logical volume cl/root successfully resized.

[root@localhost ~]# resize2fs /dev/cl/root
resize2fs 1.42.9 (28-Dec-2013)
resize2fs: Bad magic number in super-block while trying to open /dev/cl/root
Couldn't find valid filesystem superblock.
[root@localhost ~]# xfs_growfs /dev/cl/root
meta-data=/dev/mapper/cl-root    isize=512    agcount=4, agsize=877824 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0 spinodes=0
data     =                       bsize=4096   blocks=3511296, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal               bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 3511296 to 15044608
[root@localhost ~]# df -h
Filesystem           Size  Used Avail Use% Mounted on
/dev/mapper/cl-root   58G 1003M   57G   2% /
devtmpfs             910M     0  910M   0% /dev
tmpfs                920M     0  920M   0% /dev/shm
tmpfs                920M  8.5M  912M   1% /run
tmpfs                920M     0  920M   0% /sys/fs/cgroup
/dev/sda1           1014M  139M  876M  14% /boot
tmpfs                184M     0  184M   0% /run/user/0

yum install epel-release

yum install scsi-target-utils

mkdir /iscsi
dd if=/dev/zero of=/iscsi/disk01.img bs=1M count=10000

vi /etc/tgt/targets.conf

<target iqn.2017-09.com.example:target1>
    backing-store /iscsi/disk01.img
    initiator-address ALL
    #incominguser iscsi pass1234
</target>

또는 간단하게 ( 의미없는 iqn.2017-09.com.example 생략가능 )

<target target1>
    backing-store /iscsi/disk01.img
    initiator-address ALL
    #incominguser iscsi pass1234
</target>

systemctl enable tgtd
systemctl start tgtd

tgtadm --lld iscsi --op bind --mode target --tid 1 -I ALL

firewall-cmd --permanent --zone=public --add-service=iscsi-target

firewall-cmd --reload

iscsiadm: cannot make connection to 192.168.1.26: Connection refused

vi /etc/selinux/config

#SELINUX=enforcing
SELINUX=disabled

yum install iscsi-initiator-utils

vi /etc/iscsi/iscsid.conf

node.session.auth.authmethod = CHAP
node.session.auth.username = iscsi
node.session.auth.password = pass1234

iscsiadm -m discovery -t st -p 192.168.1.26
iscsiadm -m node --targetname iqn.2017-09.com.example:target1 --portal 192.168.1.26:3260 --login

iscsiadm -m node --targetname iqn.2017-09.com.example:target1 --portal 192.168.1.26:3260 --logout
iscsiadm -m discovery --portal 192.168.1.26:3260 --op=delete

fdisk /dev/sdb

mkfs.ext4 /dev/sdb1

mkdir /mnt/sdb1

mount /dev/sdb1 /mnt/sdb1

yum install dnsmasq vsftpd syslinux

vi /etc/dnsmasq.d/dhcp.conf

dhcp-range=192.168.1.3,proxy
enable-tftp
tftp-root=/var/lib/tftpboot
pxe-service=x86PC, "PXE-Linux on 192.168.1.3", "pxelinux.0", 192.168.1.3

wget http://ftp.daumkakao.com/centos/7.3.1611/isos/x86_64/CentOS-7-x86_64-Minimal-1611.iso
mkdir /mnt/centos7
mount -o loop CentOS-7-x86_64-Minimal-1611.iso /mnt/centos7
cp -av /mnt/centos7/* /var/ftp/pub/

mkdir /var/lib/tftpboot/pxelinux.cfg
mkdir /var/lib/tftpboot/centos7
cp -rv /usr/share/syslinux/* /var/lib/tftpboot/
cp -v /mnt/centos7/images/pxeboot/vmlinuz /var/lib/tftpboot/centos7/
cp -v /mnt/centos7/images/pxeboot/initrd.img /var/lib/tftpboot/centos7/

vi /var/lib/tftpboot/pxelinux.cfg/default

default menu.c32
prompt 0
timeout 100
ontimeout 1
menu title ### PXE Boot Menu ###
label 1
menu label ^1) Install CentOS 7 x64 (ftp://192.168.1.26/pub)
kernel centos7/vmlinuz
append initrd=centos7/initrd.img method=ftp://192.168.1.3/pub devfs=nomount
label 2
menu label ^2) Install CentOS 7 x64 (http://mirror.centos.org)
kernel centos7/vmlinuz
append initrd=centos7/initrd.img method=http://mirror.centos.org/centos/7/os/x86_64/ devfs=nomount

systemctl enable dnsmasq
systemctl enable vsftpd
systemctl start dnsmasq
systemctl start vsftpd

firewall-cmd --permanent --zone=public --add-service=ftp
firewall-cmd --permanent --zone=public --add-service=dns
firewall-cmd --permanent --zone=public --add-service=dhcp
firewall-cmd --permanent --zone=public --add-port=69/udp
firewall-cmd --permanent --zone=public --add-port=4011/udp
firewall-cmd --reload

vi /etc/xinet.d/tftp

service tftp
{
        socket_type             = dgram
        protocol                = udp
        wait                    = yes
        user                    = root
        server                  = /usr/sbin/in.tftpd
        server_args             = -s /var/lib/tftpboot
        disable                 = no
        per_source              = 11
        cps                     = 100 2
        flags                   = IPv4
}

systemctl enable tftp

systemctl start tftp

vi /etc/dhcp/dhcpd.conf

subnet 192.168.1.0 netmask 255.255.255.0 {
    range dynamic-bootp 192.168.1.100 192.168.1.200;
    option domain-name-servers 8.8.8.8, 8.8.4.4;
    option broadcast-address 192.168.1.255;
    option routers 192.168.1.1;
}
filename "pxelinux.0";

systemctl enable dhcpd

systemctl start dhcpd