Linux/SAKURA/さくらのVPS980

さくらのVPS 980 クローズドベータ †

↑

特徴 †

コントロールパネル画面から、コンソールリダイレクションの機能が備わっており、GRUB、Linuxのコンソールが取れる
- Firewall の設定をミスした場合や、トラブル発生時、コンソール画面を取得することが出来る。
- コピペも可能
sit0といった、トンネルデバイスの作成が可能
- IPv6トンネルの作成が可能
swapファイルの作成が可能
生のCentOS5.5 64bit版
KVMをつかった仮想化
IPv4のみ
- 59.106.172.0/23
- ルータ(Defaultgateway)は、Brocade、VRRPを実装
- IPv6は初期値で有効
- IPv6トンネル作成可能
CentOS5.5 64bit
- LANG="C" <- 結構重要!
ntpは本来CentOSの最小構成ではインストールされていないが、別途インストール及び設定済:)

今後個人的に提供して貰いたい物

IPv6ネットワーク及びv6のDNS権限委譲
IPv4逆引き
- メールベースではなく申請フォームみたいなのも併せて。
今後FreeBSD等も対応予定とのことだが、Ubuntsu, Debian も載せて欲しいという要望もあり
メモリ、swapの使用量も、コントロールパネルに表示して欲しい

微妙な内容

anaconda のログは消しましょう
yum レポジトリは、専用サーバと同じように設定して欲しかったな
VPSのコンパネ
- UIがリセットしかないので、わかりやすい表記
  状況に応じて、リセット/電源ONに切り替わる若しくは各操作として、ボタンの配置を行う等
- トラフィックログが100Mbpsが上限で表示される

↑

ハードウェアスペック †

Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz (2Core)
MEM 512MB
SWAP 2GB
HDD 20GB

概要(仮想化環境で見えるところを抜粋)

※ qemu でエミュレートしたCPUがT7700の可能性もあるので、~~実態のCPUは分かりません。~~ QuadCore の Xeonのようです。

ハードウェアについては、富士通のPRIMERGYを使用しており、現在、www101v.sakura.ne.jp ～ www118v.sakura.ne.jp の計18台稼働していると思われます。arpを見る限り、00:22:4D 及び 00:40:D0 のOUIを確認することができ、MITAC(TYAN)のベンダを確認することが出来ます。尚、backup1v.sakura.ad.jp (59.106.172.3) はバックアップ用?でSuperMicroのOUIを確認することが出来ました。

# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 Duo CPU     T7700  @ 2.40GHz
stepping        : 11
cpu MHz         : 2660.156
cache size      : 4096 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx lm constant_tsc pni ssse3 lahf_lm
bogomips        : 5320.31
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 Duo CPU     T7700  @ 2.40GHz
stepping        : 11
cpu MHz         : 2660.156
cache size      : 4096 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx lm constant_tsc pni ssse3 lahf_lm
bogomips        : 5436.62
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:

# uname -a
Linux www1XXXXu.sakura.ne.jp 2.6.18-194.3.1.el5 #1 SMP Thu May 13 13:08:30 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

# lspci
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
00:01.2 USB Controller: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] (rev 01)
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
00:02.0 VGA compatible controller: Technical Corp. Unknown device 1111
00:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 20)

# free
             total       used       free     shared    buffers     cached
Mem:        510532     199372     311160          0      22224     126068
-/+ buffers/cache:      51080     459452
Swap:      2048276          0    2048276

# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda2              18G  1.7G   15G  11% /
/dev/hda1              99M   18M   77M  19% /boot
tmpfs                 250M     0  250M   0% /dev/shm

# dmidecode
# dmidecode 2.10
SMBIOS 2.4 present.
11 structures occupying 308 bytes.
Table at 0x1FFFFEC0.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
        Vendor: Bochs
        Version: Bochs
        Release Date: 01/01/2007
        Address: 0xE8000
        Runtime Size: 96 kB
        ROM Size: 64 kB
        Characteristics:
                BIOS characteristics not supported
                Targeted content distribution is supported
        BIOS Revision: 1.0

Handle 0x0100, DMI type 1, 27 bytes
System Information
        Manufacturer: Bochs
        Product Name: Bochs
        Version: Not Specified
        Serial Number: Not Specified
        UUID: 6885E318-B983-4433-BBB6-D73E8BFF8CE3
        Wake-up Type: Power Switch
        SKU Number: Not Specified
        Family: Not Specified

Handle 0x0300, DMI type 3, 20 bytes
Chassis Information
        Manufacturer: Bochs
        Type: Other
        Lock: Not Present
        Version: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Boot-up State: Safe
        Power Supply State: Safe
        Thermal State: Safe
        Security Status: Unknown
        OEM Information: 0x00000000
        Height: Unspecified
        Number Of Power Cords: Unspecified

Handle 0x0401, DMI type 4, 32 bytes
Processor Information
        Socket Designation: CPU01
        Type: Central Processor
        Family: Other
        Manufacturer: Bochs
        ID: FB 06 00 00 FD FB 8B 07
        Version: Not Specified
        Voltage: Unknown
        External Clock: Unknown
        Max Speed: 2000 MHz
        Current Speed: 2000 MHz
        Status: Populated, Enabled
        Upgrade: Other
        L1 Cache Handle: Not Provided
        L2 Cache Handle: Not Provided
        L3 Cache Handle: Not Provided

Handle 0x0402, DMI type 4, 32 bytes
Processor Information
        Socket Designation: CPU02
        Type: Central Processor
        Family: Other
        Manufacturer: Bochs
        ID: FB 06 00 00 FD FB 8B 07
        Version: Not Specified
        Voltage: Unknown
        External Clock: Unknown
        Max Speed: 2000 MHz
        Current Speed: 2000 MHz
        Status: Populated, Enabled
        Upgrade: Other
        L1 Cache Handle: Not Provided
        L2 Cache Handle: Not Provided
        L3 Cache Handle: Not Provided

Handle 0x1000, DMI type 16, 15 bytes
Physical Memory Array
        Location: Other
        Use: System Memory
        Error Correction Type: Multi-bit ECC
        Maximum Capacity: 512 MB
        Error Information Handle: Not Provided
        Number Of Devices: 1

Handle 0x1100, DMI type 17, 21 bytes
Memory Device
        Array Handle: 0x1000
        Error Information Handle: 0x0000
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 512 MB
        Form Factor: DIMM
        Set: None
        Locator: DIMM 0
        Bank Locator: Not Specified
        Type: RAM
        Type Detail: None

Handle 0x1300, DMI type 19, 15 bytes
Memory Array Mapped Address
        Starting Address: 0x00000000000
        Ending Address: 0x0001FFFFFFF
        Range Size: 512 MB
        Physical Array Handle: 0x1000
        Partition Width: 0

Handle 0x1400, DMI type 20, 19 bytes
Memory Device Mapped Address
        Starting Address: 0x00000000000
        Ending Address: 0x0001FFFFFFF
        Range Size: 512 MB
        Physical Device Handle: 0x1100
        Memory Array Mapped Address Handle: 0x1300
        Partition Row Position: 1

Handle 0x2000, DMI type 32, 11 bytes
System Boot Information
        Status: No errors detected

Handle 0x7F00, DMI type 127, 4 bytes
End Of Table

↑

dmesg †

VPS980_dmesg.txt

↑

FS概要 †

ブロックサイズは1024kb

# dumpe2fs /dev/hda1
dumpe2fs 1.39 (29-May-2006)
Filesystem volume name:   /boot
Last mounted on:          <not available>
Filesystem UUID:          3c9b4e4e-b8f0-49f4-b955-XXX
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              26104
Block count:              104388
Reserved block count:     5219
Free blocks:              83241
Free inodes:              26063
First block:              1
Block size:               1024
Fragment size:            1024
Reserved GDT blocks:      256
Blocks per group:         8192
Fragments per group:      8192
Inodes per group:         2008
Inode blocks per group:   251
Filesystem created:       Thu Jun 17 20:37:36 2010
Last mount time:          Thu Jul 15 17:42:36 2010
Last write time:          Thu Jul 15 17:42:36 2010
Maximum mount count:      -1
Last checked:             Thu Jun 17 20:37:36 2010
Check interval:           0 (<none>)
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               128
Journal inode:            8
Default directory hash:   tea
Directory Hash Seed:      af340c30-3a87-4954-80fd-3dbf6b9203e6
Journal backup:           inode blocks
Journal size:             4114k


Group 0: (Blocks 1-8192)
  Primary superblock at 1, Group descriptors at 2-2
  Reserved GDT blocks at 3-258
  Block bitmap at 259 (+258), Inode bitmap at 260 (+259)
  Inode table at 261-511 (+260)
  0 free blocks, 1988 free inodes, 2 directories
  Free blocks:
  Free inodes: 21-2008
Group 1: (Blocks 8193-16384)
  Backup superblock at 8193, Group descriptors at 8194-8194
  Reserved GDT blocks at 8195-8450
  Block bitmap at 8451 (+258), Inode bitmap at 8452 (+259)
  Inode table at 8453-8703 (+260)
  4002 free blocks, 2008 free inodes, 0 directories
  Free blocks: 12383-16384
  Free inodes: 2009-4016
Group 2: (Blocks 16385-24576)
  Block bitmap at 16385 (+0), Inode bitmap at 16386 (+1)
  Inode table at 16387-16637 (+2)
  7939 free blocks, 2008 free inodes, 0 directories
  Free blocks: 16638-24576
  Free inodes: 4017-6024
Group 3: (Blocks 24577-32768)
  Backup superblock at 24577, Group descriptors at 24578-24578
  Reserved GDT blocks at 24579-24834
  Block bitmap at 24835 (+258), Inode bitmap at 24836 (+259)
  Inode table at 24837-25087 (+260)
  2837 free blocks, 1987 free inodes, 1 directories
  Free blocks: 25102-25600, 25610-26624, 28163-28168, 28730, 28836-28840, 28898-29184, 29193-29696, 29705-30208, 30216,
30728, 31242-31248, 31752, 32267-32272
  Free inodes: 6027, 6047-8032
Group 4: (Blocks 32769-40960)
  Block bitmap at 32769 (+0), Inode bitmap at 32770 (+1)
  Inode table at 32771-33021 (+2)
  7834 free blocks, 2008 free inodes, 0 directories
  Free blocks: 33022-33024, 33130-40960
  Free inodes: 8033-10040
Group 5: (Blocks 40961-49152)
  Backup superblock at 40961, Group descriptors at 40962-40962
  Reserved GDT blocks at 40963-41218
  Block bitmap at 41219 (+258), Inode bitmap at 41220 (+259)
  Inode table at 41221-41471 (+260)
  7681 free blocks, 2008 free inodes, 0 directories
  Free blocks: 41472-49152
  Free inodes: 10041-12048
Group 6: (Blocks 49153-57344)
  Block bitmap at 49153 (+0), Inode bitmap at 49154 (+1)
  Inode table at 49155-49405 (+2)
  7939 free blocks, 2008 free inodes, 0 directories
  Free blocks: 49406-57344
  Free inodes: 12049-14056
Group 7: (Blocks 57345-65536)
  Backup superblock at 57345, Group descriptors at 57346-57346
  Reserved GDT blocks at 57347-57602
  Block bitmap at 57603 (+258), Inode bitmap at 57604 (+259)
  Inode table at 57605-57855 (+260)
  7681 free blocks, 2008 free inodes, 0 directories
  Free blocks: 57856-65536
  Free inodes: 14057-16064
Group 8: (Blocks 65537-73728)
  Block bitmap at 65537 (+0), Inode bitmap at 65538 (+1)
  Inode table at 65539-65789 (+2)
  7939 free blocks, 2008 free inodes, 0 directories
  Free blocks: 65790-73728
  Free inodes: 16065-18072
Group 9: (Blocks 73729-81920)
  Backup superblock at 73729, Group descriptors at 73730-73730
  Reserved GDT blocks at 73731-73986
  Block bitmap at 73987 (+258), Inode bitmap at 73988 (+259)
  Inode table at 73989-74239 (+260)
  7681 free blocks, 2008 free inodes, 0 directories
  Free blocks: 74240-81920
  Free inodes: 18073-20080
Group 10: (Blocks 81921-90112)
  Block bitmap at 81921 (+0), Inode bitmap at 81922 (+1)
  Inode table at 81923-82173 (+2)
  7939 free blocks, 2008 free inodes, 0 directories
  Free blocks: 82174-90112
  Free inodes: 20081-22088
Group 11: (Blocks 90113-98304)
  Block bitmap at 90113 (+0), Inode bitmap at 90114 (+1)
  Inode table at 90115-90365 (+2)
  7939 free blocks, 2008 free inodes, 0 directories
  Free blocks: 90366-98304
  Free inodes: 22089-24096
Group 12: (Blocks 98305-104387)
  Block bitmap at 98305 (+0), Inode bitmap at 98306 (+1)
  Inode table at 98307-98557 (+2)
  5830 free blocks, 2008 free inodes, 0 directories
  Free blocks: 98558-104387
  Free inodes: 24097-26104

↑

プロセス一覧 †

# ps auxww
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.6  0.1  10348   688 ?        Ss   17:42   0:00 init [3]                                               
root         2  0.0  0.0      0     0 ?        S<   17:42   0:00 [migration/0]
root         3  0.0  0.0      0     0 ?        SN   17:42   0:00 [ksoftirqd/0]
root         4  0.0  0.0      0     0 ?        S<   17:42   0:00 [watchdog/0]
root         5  0.0  0.0      0     0 ?        S<   17:42   0:00 [migration/1]
root         6  0.0  0.0      0     0 ?        SN   17:42   0:00 [ksoftirqd/1]
root         7  0.0  0.0      0     0 ?        S<   17:42   0:00 [watchdog/1]
root         8  0.0  0.0      0     0 ?        S<   17:42   0:00 [events/0]
root         9  0.0  0.0      0     0 ?        S<   17:42   0:00 [events/1]
root        10  0.0  0.0      0     0 ?        S<   17:42   0:00 [khelper]
root        15  0.0  0.0      0     0 ?        S<   17:42   0:00 [kthread]
root        20  0.0  0.0      0     0 ?        S<   17:42   0:00 [kblockd/0]
root        21  0.0  0.0      0     0 ?        S<   17:42   0:00 [kblockd/1]
root        22  0.0  0.0      0     0 ?        S<   17:42   0:00 [kacpid]
root        90  0.0  0.0      0     0 ?        S<   17:42   0:00 [cqueue/0]
root        91  0.0  0.0      0     0 ?        S<   17:42   0:00 [cqueue/1]
root        94  0.0  0.0      0     0 ?        S<   17:42   0:00 [khubd]
root        96  0.0  0.0      0     0 ?        S<   17:42   0:00 [kseriod]
root       168  0.0  0.0      0     0 ?        S    17:42   0:00 [khungtaskd]
root       169  0.0  0.0      0     0 ?        S    17:42   0:00 [pdflush]
root       170  0.0  0.0      0     0 ?        S    17:42   0:00 [pdflush]
root       171  0.0  0.0      0     0 ?        S<   17:42   0:00 [kswapd0]
root       172  0.0  0.0      0     0 ?        S<   17:42   0:00 [aio/0]
root       173  0.0  0.0      0     0 ?        S<   17:42   0:00 [aio/1]
root       318  0.0  0.0      0     0 ?        S<   17:42   0:00 [kpsmoused]
root       349  0.0  0.0      0     0 ?        S<   17:42   0:00 [ata/0]
root       350  0.0  0.0      0     0 ?        S<   17:42   0:00 [ata/1]
root       351  0.0  0.0      0     0 ?        S<   17:42   0:00 [ata_aux]
root       361  0.0  0.0      0     0 ?        S<   17:42   0:00 [kstriped]
root       374  0.1  0.0      0     0 ?        S<   17:42   0:00 [kjournald]
root       395  0.0  0.0      0     0 ?        S<   17:42   0:00 [kauditd]
root       423  0.1  0.1  12604   756 ?        S<s  17:42   0:00 /sbin/udevd -d
root      1046  0.0  0.0      0     0 ?        S<   17:42   0:00 [kmpathd/0]
root      1047  0.0  0.0      0     0 ?        S<   17:42   0:00 [kmpathd/1]
root      1048  0.0  0.0      0     0 ?        S<   17:42   0:00 [kmpath_handlerd]
root      1113  0.0  0.0      0     0 ?        S<   17:42   0:00 [kjournald]
root      1343  0.0  0.1   5908   612 ?        Ss   17:42   0:00 syslogd -m 0
root      1347  0.0  0.0   3804   424 ?        Ss   17:42   0:00 klogd -x
dbus      1407  0.0  0.1  21256   912 ?        Ss   17:42   0:00 dbus-daemon --system
root      1416  0.0  0.1   3800   572 ?        Ss   17:42   0:00 /usr/sbin/acpid
68        1424  0.5  0.7  30600  3656 ?        Ss   17:42   0:00 hald
root      1425  0.0  0.2  21692  1060 ?        S    17:42   0:00 hald-runner
68        1432  0.0  0.1  12324   844 ?        S    17:42   0:00 hald-addon-acpi: listening on acpid socket /var/run/acpid.socket
68        1437  0.0  0.1  12324   848 ?        S    17:42   0:00 hald-addon-keyboard: listening on /dev/input/event0
root      1446  0.1  0.1  10228   680 ?        S    17:42   0:00 hald-addon-storage: polling /dev/hdc
root      1473  0.0  0.2  62624  1204 ?        Ss   17:42   0:00 /usr/sbin/sshd
ntp       1486  0.0  0.9  23388  5028 ?        SLs  17:42   0:00 ntpd -u ntp:ntp -p /var/run/ntpd.pid -g
root      1505  0.0  0.4  69500  2092 ?        Ss   17:42   0:00 sendmail: accepting connections
smmsp     1513  0.0  0.3  59756  1784 ?        Ss   17:42   0:00 sendmail: Queue runner@01:00:00 for /var/spool/clientmqueue
root      1527  0.0  0.2  19708  1148 ?        Ss   17:42   0:00 crond
root      1548  0.0  0.0  18732   456 ?        Ss   17:42   0:00 /usr/sbin/atd
root      1571  0.0  0.0   3792   484 tty1     Ss+  17:42   0:00 /sbin/mingetty tty1
root      1572  0.0  0.0   3792   480 tty2     Ss+  17:42   0:00 /sbin/mingetty tty2
root      1575  0.0  0.0   3792   480 tty3     Ss+  17:42   0:00 /sbin/mingetty tty3
root      1577  0.0  0.0   3792   480 tty4     Ss+  17:42   0:00 /sbin/mingetty tty4
root      1580  0.0  0.0   3792   484 tty5     Ss+  17:42   0:00 /sbin/mingetty tty5
root      1583  0.0  0.0   3792   484 tty6     Ss+  17:42   0:00 /sbin/mingetty tty6
root      1585  0.0  0.2  52108  1328 ?        Ss   17:42   0:00 login -- root
root      1658  0.0  3.0 201820 15664 ?        SN   17:42   0:00 /usr/bin/python -tt /usr/sbin/yum-updatesd
root      1660  0.0  0.2  12916  1084 ?        SN   17:42   0:00 /usr/libexec/gam_server
root      1661  0.0  0.7  90124  3576 ?        Ss   17:42   0:00 sshd: tomo [priv]
tomo      1663  0.1  0.3  90124  1820 ?        S    17:42   0:00 sshd: tomo@pts/0
tomo      1664  0.0  0.2  70276  1516 pts/0    Ss   17:42   0:00 -bash
root      1684  0.0  0.2 105384  1468 pts/0    S    17:42   0:00 su -
root      1685  0.0  0.2  10932  1448 pts/0    S    17:42   0:00 -bash
root      1712  0.1  0.2  10928  1440 ttyS0    Ss+  17:43   0:00 -bash
root      1737  0.0  0.1  10460   856 pts/0    R+   17:43   0:00 ps auxww

↑

VPSコントロールパネルのシリアル実現方法 †

KVMの仮想シリアルを使用し、転送、115200bpsらしい。

/etc/inittab
-----
co:12345:respawn:/sbin/agetty -h 115200 ttyS0 vt100

と記述し、シリアルコンソールを実現している。


/boot/grub/menu.lst
-----
default=0
timeout=5
#splashimage=(hd0,0)/grub/splash.xpm.gz
serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
terminal --timeout=10 serial console
hiddenmenu
title CentOS (2.6.18-194.8.1.el5)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-194.8.1.el5 ro root=LABEL=/ console=tty0 console=ttyS0,115200n8r
        initrd /initrd-2.6.18-194.8.1.el5.img
title CentOS (2.6.18-194.3.1.el5)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-194.3.1.el5 ro root=LABEL=/ console=tty0 console=ttyS0,115200n8r
        initrd /initrd-2.6.18-194.3.1.el5.img

↑

swap の作成 †

#  dd if=/dev/zero of=/home/swapfile bs=1024k count=512
512+0 records in
512+0 records out
536870912 bytes (537 MB) copied, 4.63565 seconds, 116 MB/s

# mkswap /home/swapfile
Setting up swapspace version 1, size = 536866 kB

# swapon /home/swapfile

# free
             total       used       free     shared    buffers     cached
Mem:        510532     494296      16236          0       1816     433524
-/+ buffers/cache:      58956     451576
Swap:      2572556         84    2572472

↑

各種環境 †

↑

LANG †

$ cat /etc/sysconfig/i18n
LANG="C"
SYSFONT="latarcyrheb-sun16"

LANG=C とは、芸が細かく助かる。

↑

レポジトリ †

SAKURAは確か、出荷時にSAKURAのレポジトリを使用するように出荷されていたケースが多かったのですが、今回はその設定はされていませんでした。クローズベータテストだからでしょうか。

$ cat /etc/yum.repos.d/CentOS-Base.repo
---
[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
-- snip --

↑

ntp †

# ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
+ntp1.sakura.ad. .GPS.            1 u  157 1024  377    0.866    0.587   0.080

# grep server /etc/ntp.conf
server ntp1.sakura.ad.jp

http://twitter.com/jq6xze/status/18673881866

もちろんntp.sakuraも時刻の精度(誤差1ms以下)と安全性を高めるために、GPS以外にも15個の他組織のNTPサーバを参照しています。GPSの同軸ケーブルが切れてもずれることは無いので安心を(^^) RT

http://twitter.com/jq6xze/status/18961894988

GPSが途絶えると、stratum2 or 3になります(笑)

↑

ネットワーク周り †

↑

IPアドレス †

# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 52:54:00:00:10:50
          inet addr:59.106.172.XXX  Bcast:59.106.173.255  Mask:255.255.254.0
          inet6 addr: fe80::5054:ff:fe00:XXXX/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:19614 errors:0 dropped:1634 overruns:0 frame:0
          TX packets:1173 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:957846 (935.3 KiB)  TX bytes:197118 (192.4 KiB)
          Interrupt:10 Base address:0xe000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

サブネットが、/23 となっているので、512台ほど詰めれることが出来る。少なくとも今回、/23を着ると言うことは、モニタについては、256台を超えるという事が考えられる。
現在の申込みは300を超えたそうだ(15日 18:00頃の情報)

↑

ルータ †

# tcpdump -i eth0 not src port 22 and not dst port 22
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
IP 59.106.172.1 > VRRP.MCAST.NET: VRRPv2, Advertisement, vrid 111, prio 255, authtype simple, intvl 1s, length 20

ゲートウェイのルータはVRRPで実装。

# /sbin/arp -a
-----
? (59.106.172.1) at 00:00:5E:00:01:6F [ether] on eth0
? (59.106.172.2) at 00:04:80:EC:CB:24 [ether] on eth0

172.1 はVRRPなので、実態アドレスではないため、実態と思われる172.2 のIPを見ると、

000480     (base 16)		Brocade Communications Systems, Inc

となっていることから、ルータはBrocadeを使用されていると思われる。

↑

ping6 †

# ping6 -I eth0 ff02::1
PING ff02::1(ff02::1) from fe80::5054:ff:fe00:1050 eth0: 56 data bytes
64 bytes from fe80::5054:ff:fe00:1001: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1002: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1009: icmp_seq=0 ttl=64 time=24.7 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1010: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1013: icmp_seq=0 ttl=64 time=25.9 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1026: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1027: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1029: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1030: icmp_seq=0 ttl=64 time=25.5 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1031: icmp_seq=0 ttl=64 time=25.1 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1035: icmp_seq=0 ttl=64 time=24.5 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1036: icmp_seq=0 ttl=64 time=25.1 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1049: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1050: icmp_seq=0 ttl=64 time=26.5 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1052: icmp_seq=0 ttl=64 time=21.7 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1054: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1055: icmp_seq=0 ttl=64 time=24.7 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1056: icmp_seq=0 ttl=64 time=25.1 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1057: icmp_seq=0 ttl=64 time=25.9 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1060: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1073: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1079: icmp_seq=0 ttl=64 time=25.1 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1080: icmp_seq=0 ttl=64 time=25.1 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1083: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1098: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1099: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1101: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1105: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1107: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1129: icmp_seq=0 ttl=64 time=25.9 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1146: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1152: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1156: icmp_seq=0 ttl=64 time=25.7 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1172: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1173: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1174: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1176: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1179: icmp_seq=0 ttl=64 time=25.9 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1193: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1194: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1195: icmp_seq=0 ttl=64 time=24.5 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1200: icmp_seq=0 ttl=64 time=25.9 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1201: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1217: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1220: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1221: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1223: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1224: icmp_seq=0 ttl=64 time=25.1 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1225: icmp_seq=0 ttl=64 time=26.6 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1241: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1242: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1247: icmp_seq=0 ttl=64 time=24.7 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1249: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1250: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1252: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1266: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1271: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1272: icmp_seq=0 ttl=64 time=25.8 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1275: icmp_seq=0 ttl=64 time=25.1 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1289: icmp_seq=0 ttl=64 time=25.5 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1290: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1298: icmp_seq=0 ttl=64 time=24.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1313: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)
64 bytes from fe80::5054:ff:fe00:1314: icmp_seq=0 ttl=64 time=26.0 ms (DUP!)

見ての通り、MacAddressの最後の4桁及びホスト名が一致しており、且つ、最後にuという名前がついている。上記の事から、

fe80::5054:ff:fe00:1001: www1001u.sakura.ne.jp
fe80::5054:ff:fe00:1002: www1002u.sakura.ne.jp
fe80::5054:ff:fe00:1009: www1009u.sakura.ne.jp
…

というのが分かり、更にnslookupすれば、v4アドレスも分かる。
って、v6は現時点でデフォルトで提供されていないので、NETWORKING_IPV6=no にしたらいいのに、と思った。
若しくは一意性の無い名前など。

↑

6to4 †

# traceroute 192.88.99.1
traceroute to 192.88.99.1 (192.88.99.1), 30 hops max, 40 byte packets
 1  59.106.172.1 (59.106.172.1)  5.247 ms  4.902 ms  4.642 ms
 2  tkgrt1b-grt5e.bb.sakura.ad.jp (59.106.248.189)  4.709 ms  5.053 ms  6.119 ms
 3  tkort2-grt1b.bb.sakura.ad.jp (59.106.250.249)  3.931 ms  3.741 ms  3.491 ms
 4  tkcrt2-ort2.bb.sakura.ad.jp (59.106.251.6)  3.283 ms  3.106 ms  2.887 ms
 5  210.173.176.64 (210.173.176.64)  2.613 ms  2.437 ms  2.227 ms
 6  192.88.99.1 (192.88.99.1)  1.920 ms  1.821 ms  1.308 ms

SAKURAなので、tokyo6to4に接続。MFEED経由なんですね。

↑

適当にベンチマーク †

↑

DISKIO †

# dd if=/test of=/dev/null bs=1024k 
10615675688 bytes (11 GB) copied, 97.5801 seconds, 109 MB/s

やればやるほど、キャッシュに乗ってしまいだめぽ。

# hdparm -t /dev/hda2

/dev/hda2:
 Timing buffered disk reads:  838 MB in  3.01 seconds = 278.16 MB/sec
# hdparm -t /dev/hda2

/dev/hda2:
 Timing buffered disk reads:  960 MB in  3.01 seconds = 318.70 MB/sec
# hdparm -t /dev/hda2

/dev/hda2:
 Timing buffered disk reads:  1084 MB in  3.00 seconds = 360.86 MB/sec
# hdparm -t /dev/hda2

/dev/hda2:
 Timing buffered disk reads:  1154 MB in  3.01 seconds = 383.30 MB/sec

↑

ネットワークベンチ †

[SUM]  0.0-620.0 sec  20.7 GBytes    287 Mbits/sec

現在、300Mbps程度でるが、サービスインには、帯域制限をかけて、1VM100Mbpsまでに絞るとのこと。恐らく、Virt-IO であれば、もっとパフォーマンス出たのではないかと思われる。
尚NICドライバはRealtec 8139であり、100Mbpsの筈なのに...

↑

コントロールパネル †

コンソールがつかめるため、Firewallの設定をしくった、という対応が出来る。
また、GRUBの画面も、コンソールリダイレクションの設定がされており、細かい。

コピペも出来ました!!

↑

コメント †

他のOSを載せる件ですが、debianは入れることができました。 http://www.touki.info/howto/howtoSakuraDebian.html -- stat? 2010-07-19 (月) 16:28:49
うまくやると、FreeBSDとかもいけそうですね! -- tomocha 2010-07-20 (火) 11:42:44