Loi Nguyen loinguyenduc101
loinguyenduc101
/ Virtual IP Address Failover Using Keepalived.guide
Last active
July 19, 2024 19:33
Configuring Simple Virtual IP Address Failover Using Keepalived
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| #### https://docs.oracle.com/cd/E37670_01/E41138/html/section_uxg_lzh_nr.html | |
| Enable IP forwarding: | |
| # echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf | |
| # sysctl -p | |
| net.ipv4.ip_forward = 1 | |
| Add firewall rules to allow VRRP communication using the multicast IP address 224.0.0.18 and the VRRP protocol (112) on each network interface that Keepalived will control, for example: | |
| # iptables -I INPUT -i eth0 -d 224.0.0.0/8 -p vrrp -j ACCEPT | |
| # iptables -I OUTPUT -o eth0 -d 224.0.0.0/8 -p vrrp -j ACCEPT | |
| # service iptables save |
loinguyenduc101
/ Installing VMware Tools.txt
Created
October 23, 2016 06:34
Installing VMware Tools in a Linux virtual machine using a Compiler (1018414)
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| ###https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1018414 | |
| To install VMware Tools in a Linux guest operating system using Compiler: | |
| Ensure that your Linux virtual machine is powered on. | |
| If you are running a GUI interface, open a command shell. | |
| Note: Log in as a root user, or use the sudo command to complete each of these steps. |
loinguyenduc101
/ install python 2.7 on CentOS 6.x .txt
Last active
October 23, 2016 08:15
install python 2.7 on CentOS 6.x
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| scl enable python27 bash | |
| #yum install centos-release-SCL | |
| #yum install python27 | |
| or make install from source | |
| # wget https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tgz | |
| # tar xzf Python-2.7.12.tgz | |
| # cd Python-2.7.12 | |
| # ./configure --prefix=/usr/local |
loinguyenduc101
/ IntelliJ IDEA 2016.2.5.txt
Created
November 20, 2016 08:58
IntelliJ IDEA 2016.2.5.txt
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| 43B4A73YYJ-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 |
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| TASKKILL /F /IM chrome.exe | |
| start chrome.exe --args --disable-web-security --allow-file-access-from-files --user-data-dir |
loinguyenduc101
/ packages for centos 7.txt
Last active
February 17, 2017 07:50
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| ******************** các package nên được cài đặt sau khi cài centos 7 ********** | |
| Install epel repo | |
| # yum install epel-release | |
| các Development Tools group --> chứa các package cần thiết cho phép build source code | |
| # yum group install "Development Tools" | |
| Các tool cho phép tạo, check và monitor kết nối | |
| #yum install net-tools | |
| #yum install wget telnet curl nmap ftp |
loinguyenduc101
/ config centos7.txt
Last active
February 16, 2017 09:07
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| #1----------------------------------- check và enable network | |
| show các Network interfaces trên máy | |
| # ip addr show | |
| để bring up hoặc take down một network interface ta sử dụng ifup/ifdown | |
| #ifup XXX | |
| #ifdown XXX | |
| Nếu sử dụng Static IP == >config file tưởng tứng cho interface này (XXX là tên interface network) | |
| #vi /etc/sysconfig/network-scripts/ifcfg-XXX | |
| Note : |
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| -------------------------------- install IBM Integration Bus | |
| For Linux or UNIX systems: | |
| - Security requirements: | |
| + single-user installation: thực hiện cài đặt trên home directory của user và chỉ user đó có quyền quản trị IIB | |
| + shared(multiple users) installation: dùng root hoặc super user đề cài(do write vào /var....), group mqbrkrs sẽ được tạo --> all user thuộc mqbrkrs sẽ có quyền quản trị IIB | |
| ref: | |
| https://www.ibm.com/support/knowledgecenter/en/SSMKHH_10.0.0/com.ibm.etools.mft.doc/bh26031_.htm | |
| có thể convert từ single-user installation sang shared installaion | |
| https://www.ibm.com/support/knowledgecenter/en/SSMKHH_10.0.0/com.ibm.etools.mft.doc/bh25994_.htm?view=kc |
loinguyenduc101
/ install IBM MQ v8.txt
Last active
February 28, 2017 08:53
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| ######## | |
| note : dùng Root or super user để cài | |
| 1. Setting up the user and group | |
| https://www.ibm.com/support/knowledgecenter/en/SSFKSJ_8.0.0/com.ibm.mq.ins.doc/q008500_.htm | |
| Note: The only IBM MQ requirement, is that the mqm user should have the mqm group as its primary group. | |
| - với Linux thì user mqm và group mqm sẽ được tự động tạo trong quá trình cài đặt rpm | |
| eg: | |
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| #################################### V8.0 ############################### | |
| ##### sử dụng user thuộc mqm group để thao tác toàn bộ các lệnh ######### | |
| #1# validate config của MQ | |
| #mqconfig -v 8.0 | |
| or | |
| #MQ_CONFIG_OPTIONS="-v 8.0 -p group.mqm" | |
| # . ./mqconfig | |
| mqconfig: V3.7 analyzing CentOS Linux release 7.2.1511 (Core) settings |