修改域名DNS设置

今天上架了新的服务器,命名 n19-cntob 。
服务器配置:
CPU Xeon L3426 4核HT 一共8核心
内存: 8G
硬盘: 2 x 160G SSD
机房:加州T2机房
带宽:50mbps 独享
主板 是超微的 Supermicro x8sil 这块主板现在售价大约在 1500人民币左右。
CPU Xeon L3426 4核HT 一共8核心
硬盘 是 intel SSD 160G
=== START OF INFORMATION SECTION ===
Device Model: INTEL SSDSA2CW160G3
Serial Number: CVPR122306A9160DGN
Firmware Version: 4PC10362
User Capacity: 160,041,885,696 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 4
Local Time is: Fri Feb 3 08:34:15 2012 PST
SMART support is: Available – device has SMART capability.
SMART support is: Enabled
通过DD测试,数据不理想可能由于SSD缓存利用
内存,我们可以看出来 主板一共4个内存插槽,已经使用了2个, 4 x 2 一共 8G 内存
Memory Device
Array Handle: 0x002A
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: DIMM
Set: None
Locator: DIMM1A
Bank Locator: BANK0
Type: DDR3
Type Detail: Synchronous
Speed: 1333 MHz
Manufacturer: Manufacturer00
Serial Number: 00000000
Asset Tag: AssetTagNum0
Part Number:
–
Memory Device
Array Handle: 0x002A
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM1B
Bank Locator: BANK1
Type: Unknown
Type Detail: Unknown
Speed: Unknown
Manufacturer: Manufacturer01
Serial Number: SerNum01
Asset Tag: AssetTagNum1
Part Number: ModulePartNumber01
–
Memory Device
Array Handle: 0x002A
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: DIMM
Set: None
Locator: DIMM2A
Bank Locator: BANK2
Type: DDR3
Type Detail: Synchronous
Speed: 1333 MHz
Manufacturer: Manufacturer02
Serial Number: 00000000
Asset Tag: AssetTagNum2
Part Number:
–
Memory Device
Array Handle: 0x002A
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM2B
Bank Locator: BANK3
Type: Unknown
Type Detail: Unknown
Speed: Unknown
Manufacturer: Manufacturer03
Serial Number: SerNum03
Asset Tag: AssetTagNum3
Part Number: ModulePartNumber03
服务器网卡有2个接口,使用eth0
SIOCGMIIREG on eth0 failed: Input/output error
eth0: negotiated 100baseTx-FD, link ok
SIOCGMIIREG on eth1 failed: Input/output error
eth1: no link
网络方面,这次拿了几个段的IP , 是 173 和 50段开通, 速度还可以。
其他地方PING 情况

综合性能使用UB5.1.2测试分数为:2443
[root@n19-cntob unixbench-5.1.2]# ./Run
make all
make[1]: Entering directory `/etc/yum.repos.d/unixbench-5.1.2′
Checking distribution of files
./pgms exists
./src exists
./testdir exists
./tmp exists
./results exists
make[1]: Leaving directory `/etc/yum.repos.d/unixbench-5.1.2′
sh: 3dinfo: command not found
# # # # # # # ##### ###### # # #### # #
# # ## # # # # # # # ## # # # # #
# # # # # # ## ##### ##### # # # # ######
# # # # # # ## # # # # # # # # #
# # # ## # # # # # # # ## # # # #
#### # # # # # ##### ###### # # #### # #
Version 5.1.2 Based on the Byte Magazine Unix Benchmark
Multi-CPU version Version 5 revisions by Ian Smith,
Sunnyvale, CA, USA
December 22, 2007 johantheghost at yahoo period com
1 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10
1 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10
1 x Execl Throughput 1 2 3
1 x File Copy 1024 bufsize 2000 maxblocks 1 2 3
1 x File Copy 256 bufsize 500 maxblocks 1 2 3
1 x File Copy 4096 bufsize 8000 maxblocks 1 2 3
1 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10
1 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10
1 x Process Creation 1 2 3
1 x System Call Overhead 1 2 3 4 5 6 7 8 9 10
1 x Shell Scripts (1 concurrent) 1 2 3
1 x Shell Scripts (8 concurrent) 1 2 3
8 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10
8 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10
8 x Execl Throughput 1 2 3
8 x File Copy 1024 bufsize 2000 maxblocks 1 2 3
8 x File Copy 256 bufsize 500 maxblocks 1 2 3
8 x File Copy 4096 bufsize 8000 maxblocks 1 2 3
8 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10
8 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10
8 x Process Creation 1 2 3
8 x System Call Overhead 1 2 3 4 5 6 7 8 9 10
8 x Shell Scripts (1 concurrent) 1 2 3
8 x Shell Scripts (8 concurrent) 1 2 3
========================================================================
BYTE UNIX Benchmarks (Version 5.1.2)
System: n19-cntob.com: GNU/Linux
OS: GNU/Linux — 2.6.18-274.17.1.el5 — #1 SMP Tue Jan 10 17:25:58 EST 2012
Machine: x86_64 (x86_64)
Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
CPU 0: Intel(R) Xeon(R) CPU L3426 @ 1.87GHz (3733.4 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
CPU 1: Intel(R) Xeon(R) CPU L3426 @ 1.87GHz (3733.3 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
CPU 2: Intel(R) Xeon(R) CPU L3426 @ 1.87GHz (3733.3 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
CPU 3: Intel(R) Xeon(R) CPU L3426 @ 1.87GHz (3733.3 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
CPU 4: Intel(R) Xeon(R) CPU L3426 @ 1.87GHz (3733.3 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
CPU 5: Intel(R) Xeon(R) CPU L3426 @ 1.87GHz (3733.3 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
CPU 6: Intel(R) Xeon(R) CPU L3426 @ 1.87GHz (3733.3 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
CPU 7: Intel(R) Xeon(R) CPU L3426 @ 1.87GHz (3733.3 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
23:14:42 up 1 day, 13:06, 2 users, load average: 0.00, 0.00, 0.00; runlevel 3
————————————————————————
Benchmark Run: Fri Feb 03 2012 23:14:42 – 23:42:49
8 CPUs in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 17812399.6 lps (10.0 s, 7 samples)
Double-Precision Whetstone 3516.6 MWIPS (9.9 s, 7 samples)
Execl Throughput 2380.1 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 768547.7 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 209826.7 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1770643.3 KBps (30.0 s, 2 samples)
Pipe Throughput 1362560.1 lps (10.0 s, 7 samples)
Pipe-based Context Switching 214435.3 lps (10.0 s, 7 samples)
Process Creation 7691.1 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 3985.4 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 1927.4 lpm (60.0 s, 2 samples)
System Call Overhead 1098504.0 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 17812399.6 1526.3
Double-Precision Whetstone 55.0 3516.6 639.4
Execl Throughput 43.0 2380.1 553.5
File Copy 1024 bufsize 2000 maxblocks 3960.0 768547.7 1940.8
File Copy 256 bufsize 500 maxblocks 1655.0 209826.7 1267.8
File Copy 4096 bufsize 8000 maxblocks 5800.0 1770643.3 3052.8
Pipe Throughput 12440.0 1362560.1 1095.3
Pipe-based Context Switching 4000.0 214435.3 536.1
Process Creation 126.0 7691.1 610.4
Shell Scripts (1 concurrent) 42.4 3985.4 940.0
Shell Scripts (8 concurrent) 6.0 1927.4 3212.3
System Call Overhead 15000.0 1098504.0 732.3
========
System Benchmarks Index Score 1102.2
————————————————————————
Benchmark Run: Fri Feb 03 2012 23:42:49 – 00:10:42
8 CPUs in system; running 8 parallel copies of tests
Dhrystone 2 using register variables 41542253.1 lps (10.0 s, 7 samples)
Double-Precision Whetstone 13752.7 MWIPS (9.9 s, 7 samples)
Execl Throughput 20841.1 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 190342.0 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 54029.9 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 612079.4 KBps (30.0 s, 2 samples)
Pipe Throughput 4398498.0 lps (10.0 s, 7 samples)
Pipe-based Context Switching 1244403.4 lps (10.0 s, 7 samples)
Process Creation 61356.4 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 28087.6 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 4040.7 lpm (60.1 s, 2 samples)
System Call Overhead 3971284.6 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 41542253.1 3559.7
Double-Precision Whetstone 55.0 13752.7 2500.5
Execl Throughput 43.0 20841.1 4846.8
File Copy 1024 bufsize 2000 maxblocks 3960.0 190342.0 480.7
File Copy 256 bufsize 500 maxblocks 1655.0 54029.9 326.5
File Copy 4096 bufsize 8000 maxblocks 5800.0 612079.4 1055.3
Pipe Throughput 12440.0 4398498.0 3535.8
Pipe-based Context Switching 4000.0 1244403.4 3111.0
Process Creation 126.0 61356.4 4869.6
Shell Scripts (1 concurrent) 42.4 28087.6 6624.4
Shell Scripts (8 concurrent) 6.0 4040.7 6734.5
System Call Overhead 15000.0 3971284.6 2647.5
========
System Benchmarks Index Score 2443.0
[root@n19-cntob unixbench-5.1.2]#
现在有不少人使用Lu控制面板,了解配置文件结构是非常比较的, 能够快速处理问题。
常用命令
######—— 软件操作方法:
* 关闭LUM及所有组件:lu-stop
* 启动LUM及所有组件:lu-start
* 重启LUM及所有组件:lu-restart
* 关闭MySQL:mysql-stop
* 启动MySQL:mysql-start
* 重启MySQL:mysql-restart
* 关闭PgSQL:pgsql-stop
* 启动PgSQL:pgsql-start
* 重启PgSQL:pgsql-restart
* 关闭Nginx:nginx-stop
* 启动Nginx:nginx-start
* 重启Nginx:nginx-restart
* 关闭apache:apache-stop
* 启动apache:apache-start
* 重启apache:apache-restart
* 关闭pureftpd:pureftpd-stop
* 启动pureftpd:pureftpd-start
* 重启pureftpd:pureftpd-restart
* 关闭LUM后台:lum-stop
* 启动LUM后台:lum-start
* 重启LUM后台:lum-restart
* 修复LUM文件权限(包括MySQL数据库权限的LUM软件本身的权限等):lu-repair
目录结构
/ etc/
my.cnf #mysql配置文件
ipfw.conf #ipfw防火墙的配置文件(仅FreeBSD)
home/
ftp #FTP目录(默认情况下,所有网站位于此目录下)
hosts_backup #网站备份目录
logs_backup #网站访问日志备份目录
lum_files #重要内容保护目录
mysql_data #mysql数据库目录
pgsql_data #pgsql数据库目录
mysqls_backup #mysql数据库备份目录
pgsqls_backup #pgsql数据库备份目录
files_backup #垃圾桶(被删除文件)
lum_safe_files #LUM重要文件存放目录
usr/
local/
apache/
httpd.conf #apache配置文件
vhost.conf #apache虚拟主机配置文件
apache_LuManager/
bind/
freetype/
gd/
jpeg/
libiconv/
libmcrypt/
libpng/
LuManager/
Conf/
htaccess_files/ #伪静态(重写规则)存放目录
config.php #LUM配置文件
Tpl/
App/ #应用程序目录
User_1520/ #用户模板目录
Runtime/ #LUM临时目录
LuNamp/
cmd/ #LUN系统命令存放目录(该目录下的命名无需使用完整路径,如要重启nginx,直接执行nginx-restart便可)
apache_LuManager-reload #重载LUM后台面板
apache_LuManager-restart
apache_LuManager-start
apache_LuManager-stop
apache-reload #重启apache
apache-restart
apache-start
apache-stop
crontab_cmd.sh #计划任务脚本
lu-repair #修复LUN和LUM的文件权限
lu-restart #重启LUN各组件
lu-start
lu-stop
mysql_install_db.sh #初始化数据库(危险)
mysql-restart #重启mysql
mysql-start
mysql-stop
nginx-reload #重载nginx
nginx-restart #重启nginx
nginx-start #启动nginx
nginx-stop #关闭nginx
pgsql-reload #重载PostgreSQL
pgsql-restart #重启PostgreSQL
pgsql-start #启动PostgreSQL
pgsql-stop #关闭PostgreSQL
pureftpd-restart #重启pureftpd
pureftpd-start
pureftpd-stop
webserver-reload #重载web服务(包括nginx和apache,会自动判断LUM是否启用apache)
webserver-restart
webserver-start
webserver-stop
pm/ #phpMyAdmin目录
make/
memcached/
mysql/
nginx/
conf/
nginx.conf #nginx配置文件
vhost.conf #nginx虚拟主机配置文件
perl/
php/
php_fcgi/
php_LuManager/
pureftpd/
pgsql/
Zend/
Zend_LuManager/
LuManager/
今天重启MySQL数据库,提示错误“MySQL manager or server PID file could not be found!”
一般是程序进程卡死,结束进程重新启动就可以了,登录服务器,执行命令
查找mysql进程
ps aux |grep mysqld
强制终止, 多次执行
killall mysqld
启动数据库
service mysqld start
今天登录数据库提示“ORA-28001 the password has expired”, 这个是由oracle 11 增加的安全设定,一个用户密码超过180天没有修改,就不允许登录了。
解决方法很简单,执行SQL语句修改密码就可以登录了
ALTER USER cntob IDENTIFIED BY xianzhong123pp ;
其中 cntob 是用户名 xianzhong123pp 是数据库密码
查询系统密码过期策略
SELECT * FROM dba_profiles WHERE profile=’DEFAULT’ AND resource_name=’PASSWORD_LIFE_TIME’
如果不想使用系统默认180天,可以通过一下语句修改成不限制,为了安全,不建议将PASSWORD_LIFE_TIME值设置成UNLIMITED,建议定期修改密码,防止被爆库减少损失。
ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED
SS-NODE3 这台服务器已经运行了180天了, uptime 时间是88天。系统8G 内存, CPU 是 x3430 的4核心.硬盘是3 x 1T 组成Raid 5 阵列。系统负载很低, 基本不超过1。
