#找到要改的網卡uuid xe network-list #修改設定 xe network-param-set uuid=4da7ab89-924e-423a-5c4d-b8c0c612c9ee MTU=9000
reboot設備
Author: flight
fwknop GUI程式
參考資料: http://www.cipherdyne.org/fwknop/
Windows 2008 R2新增firewall policy (指定Source IP設定遠端桌面連線)
XenServer VM調整CPU Socket/Cores對應比備忘
用Linux架設SLB(負載平衡)設備
網路架構 (todo):
SLB主機安裝:
1. 灌好CentOS 6.5 OS
2. yum -y install ipvsadm keepalived
3. 編輯/etc/keepalived/keepalived.conf，範例如下
! Configuration File for keepalived
global_defs {
notification_email {
your-email@email.com
}
notification_email_from email-sender@email.com
smtp_server 10.10.10.1
smtp_connect_timeout 30
router_id LVS_TF4F
}
#vrrp_instance VI_1 {
# state MASTER
# interface eth0
# virtual_router_id 51
# priority 100
# advert_int 1
# authentication {
# auth_type PASS
# auth_pass yourpassword
# }
# virtual_ipaddress {
# 127.0.0.5
# }
#}
virtual_server 10.176.20.152 80 {
delay_loop 6
lb_algo rr
lb_kind DR
persistence_timeout 1200
protocol TCP
virtualhost slb.idc.local
real_server 10.176.20.131 80 {
weight 1
HTTP_GET {
url {
path /iisstart.htm
digest dfbd1ee66a4e792349591b88660c0956
}
}
}
real_server 10.176.20.132 80 {
weight 1
HTTP_GET {
url {
path /iisstart.htm
digest dfbd1ee66a4e792349591b88660c0956
}
}
}
real_server 10.176.20.153 80 {
weight 0
HTTP_GET {
url {
path /slb.php
digest 509f04652b5e1b2d2b9e6bc121a87e50
}
}
}
}
4.啟動keepalived
chkconfig keepalived on service keepalived start
5.觀看目前SLB連線狀態
ipvsadm -Ln
Real Server安裝(CentOS 5/6 Linux)
編輯/etc/sysctl.conf加入下面兩行，設定後記得使用sysctl -p生效
net.ipv4.conf.all.arp_ignore = 1 net.ipv4.conf.all.arp_announce = 2
新增/etc/sysconfig/ifcfg-lo:0檔案並加入下面內容
DEVICE=lo:0 IPADDR=10.176.20.152 NETMASK=255.255.255.255 ONBOOT=yes
啟動loopback網卡
ifup lo:0
Real Server安裝(Windows 2008 R2) (todo)
1.新增Loopback Interface
最後請執行下面指令
netsh interface ipv4 set interface "區域連線" weakhostreceive=enabled netsh interface ipv4 set interface "Loopback" weakhostreceive=enabled netsh interface ipv4 set interface "Loopback" weakhostsend=enabled
Windows 2008 R2 sysprep 自動化
參考資料:
How to Sysprep in Windows Server 2008 R2 and Windows 7
基本上照著reference裡link這幾位高手的SOP跑一遍大概就OK了
幾個重點紀錄一下
- 要準備好windows 2008 r2 的source光碟 (裡面的/source/install.wim這個檔案 WAIK要用到)
- 將source光碟中的/source/install.wim (約2.7Gb)複製到硬碟 (複製完後把install.wim唯讀屬性移除)
- 下載並安裝Windows Automated Installation Kit (WAIK)
unattend.xml範例
目的一：自動化sysprep (全自動執行不跳出需要人工點選畫面)
目的二：修改administrator預設密碼(改成Passw0rd)
<?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend">
<settings pass="generalize">
<component name="Microsoft-Windows-OutOfBoxExperience" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<DoNotOpenInitialConfigurationTasksAtLogon>true</DoNotOpenInitialConfigurationTasksAtLogon>
</component>
<component name="Microsoft-Windows-ServerManager-SvrMgrNc" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<DoNotOpenServerManagerAtLogon>true</DoNotOpenServerManagerAtLogon>
</component>
</settings>
<settings pass="oobeSystem">
<component name="Microsoft-Windows-International-Core" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<InputLocale>zh-TW</InputLocale>
<SystemLocale>zh-TW</SystemLocale>
<UserLocale>zh-TW</UserLocale>
<UILanguage>zh-TW</UILanguage>
</component>
<component name="Microsoft-Windows-Shell-Setup" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<OOBE>
<HideEULAPage>true</HideEULAPage>
</OOBE>
<UserAccounts>
<AdministratorPassword>
<Value>UABhAHMAcwB3ADAAcgBkAEEAZABtAGkAbgBpAHMAdAByAGEAdABvAHIAUABhAHMAcwB3AG8AcgBkAA==</Value>
<PlainText>false</PlainText>
</AdministratorPassword>
</UserAccounts>
</component>
</settings>
<cpi:offlineImage cpi:source="catalog:d:/sources/install_windows server 2008 r2 serverstandard.clg" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
</unattend>
XenServer 6.2.0 hotfix update script
2013/12/14 update
XS62ESP1出來了
http://support.citrix.com/article/CTX139789
#!/bin/bash xe patch-upload file-name=XS62E001.xsupdate xe patch-upload file-name=XS62E002.xsupdate xe patch-upload file-name=XS62E004.xsupdate xe patch-upload file-name=XS62E005.xsupdate xe patch-upload file-name=XS62E009.xsupdate xe patch-upload file-name=XS62E011.xsupdate xe patch-upload file-name=XS62E012.xsupdate xe patch-pool-apply uuid=dedcc0dd-d8f3-4f76-90ca-92697c7a44f0 xe patch-pool-apply uuid=59128f15-92cd-4dd9-8fbe-a0115d1b07a2 xe patch-pool-apply uuid=5579f1f0-ff83-11e2-b778-0800200c9a66 xe patch-pool-apply uuid=aeff92a9-2c60-43eb-b34e-14e4132b411c xe patch-pool-apply uuid=d9c753b9-a15b-4a31-897b-97fdae609031 xe patch-pool-apply uuid=ff202d2d-2812-4c6b-b500-2f4701de7bc4 xe patch-pool-apply uuid=a4251789-ce6c-4726-942c-3cddbadcaca6
使用XenServer xe指令批次複製VM
#!/bin/bash
#TEMPLATE_VM='a1fb3f33-2fd4-6aef-13d9-39a61335425e'
TEMPLATE_VM='6ef7a6a2-d44c-38ca-2cb2-cdcd24cea59b'
SR_UUID='14640e93-6b38-99e9-5ec3-3074fd8408d9'
for i in {1..18}
do
SERIAL=`printf %03d $i`
echo -n "Cloning lab-linux-$SERIAL ...."
xe vm-copy new-name-label=lab-linux-$SERIAL vm=$TEMPLATE_VM sr-uuid=$SR_UUID
echo "done"
done
MySQL mysql-bin log檔案如何rotate/remove?
Ref:
http://dev.mysql.com/doc/refman/5.0/en/log-file-maintenance.html
http://dev.mysql.com/doc/refman/5.0/en/server-system-variables.html#sysvar_expire_logs_days
http://dev.mysql.com/doc/refman/5.0/en/purge-binary-logs.html
環境
CentOS 5 x86_64 with MySQL 5.0.95
問題
為了提升MySQL效能有將/etc/my.cnf改成使用/usr/share/mysql/my-huge.cnf
套用/usr/share/mysql/my-huge.cnf後就會enable mysql bin log (for replication/cluster)
# Replication Master Server (default) # binary logging is required for replication log-bin=mysql-bin
此設定預設沒有啟動自動logrotate機制跑久了硬碟鐵定爆炸
解法1.1 (自動定期刪除)(修改設定檔)(是否正確生效待驗證)
於/etc/my.cnf加入下面這行 (超過3天的自動移除)
expire_logs_days=3
解法1.2 (自動定期刪除)(動態修改系統變數)
SHOW VARIABLES WHERE Variable_Name='expire_logs_days'; SET GLOBAL expire_logs_days = 1; SHOW VARIABLES WHERE Variable_Name='expire_logs_days';
解法2 (人工刪除)
PURGE BINARY LOGS TO 'mysql-bin.000010'; PURGE BINARY LOGS BEFORE '2008-04-02 22:46:26';
Todo
CentOS 6驗證
csv轉powercli語法大量rename VM
ref:
https://communities.vmware.com/message/2252750
csv example
Old_Name001,VM Description,New_Name001 Old_Name002,VM Description,New_Name002 Old_Name003,VM Description,New_Name003 Old_Name004,VM Description,New_Name004
<?php
$file1 = file('example.csv');
#print_r($file1);
foreach($file1 as $line){
$tmp = preg_split("/,/", $line);
#print_r($tmp);
$old_name = trim($tmp[0]);
$new_name = trim($tmp[2]);
echo "#rename VM $old_name -> $new_name\n";
echo "\$VM = Get-VM -Name '$old_name'\n";
echo "Set-VM -VM \$VM -Name '$new_name' -Confirm:\$false\r\n"; #配合Windows txt格式換行符號需調整為\r\n
}//foreach
?>
Output
#rename VM Old_Name001 -> New_Name001 $VM = Get-VM -Name 'Old_Name001' Set-VM -VM $VM -Name 'New_Name001' -Confirm:$false #rename VM Old_Name002 -> New_Name002 $VM = Get-VM -Name 'Old_Name002' Set-VM -VM $VM -Name 'New_Name002' -Confirm:$false #rename VM Old_Name003 -> New_Name003 $VM = Get-VM -Name 'Old_Name003' Set-VM -VM $VM -Name 'New_Name003' -Confirm:$false #rename VM Old_Name004 -> New_Name004 $VM = Get-VM -Name 'Old_Name004' Set-VM -VM $VM -Name 'New_Name004' -Confirm:$false