» centos の記事

~ Centos mount synology NAS’s NFS drive ~

connie 2018.07.13 | centos | | No Comments

server side setting

insert client ip

centos client side setting

yum install nfs-utils nfs-utils-lib
mkdir -p /mnt/nfs/home
mount {serverIP}:/home /mnt/nfs/home

checking the mounting
df -h

add startup script
vi /etc/fstab
{serverIP}:/home /mnt/nfs/home nfs auto,noatime,nolock,bg,nfsvers=3,intr,tcp,actimeo=1800 0 0

~ centos IPSEC/L2TP VPN SERVER and bridge Lan ~

connie 2018.04.17 | centos | | No Comments

if Router Subnet
wget https://git.io/vpnsetup-centos -O vpnsetup.sh && sudo sh vpnsetup.sh

nano /etc/ipsec.conf



nano /etc/xl2tpd/xl2tpd.conf

ip range =
local ip =

iptables -t nat -A POSTROUTING -s -o eth0 -j MASQUERADE

Router Port forward 1701,500,4500 to vpn server

~ Create a EXT HDD >16TB for centos on esxi ~

connie 2017.08.22 | centos, ESXi | | No Comments

首先如果要生一個vmdk大於2TB,必須使用 vmware web client 處理
先安裝windows 2012 R2, 再安裝vCenter Server for Windows
Login vSphere Web Client (Flash)
create datacenter, create host , license可以用試用版,因為目標只是想create HDD
edit virtual machine + HDD


fdisk -l


==================Larger than 2TB=============
parted /dev/sdb
mklabel gpt

Model: VMware Virtual disk (scsi)
Disk /dev/sdb: 19.9TB<====


mkpart primary 0GB 19.9TB

==================Larger than 2TB=============

#之後formart the partition to centos ext4
mkfs.ext4 /dev/sdb1

#開mount point
mkdir /home/dataDrive

nano /etc/fstab
#add a row at the back
/dev/sdb1 /home/disk ext4 defaults 1 2

mount /dev/sdb1 /home/dataDrive
df -h

~ Completely remove mariadb ~

connie 2017.04.05 | centos, mariadb | | No Comments
yum remove mariadb mariadb-server

rm -rf /var/lib/mysql 

rm /etc/my.cnf

Optional step: rm ~/.my.cnf


~ Centos install node.js ~

connie 2017.04.01 | centos, node.js | | No Comments
sudo yum install nodejs
node --version

npm install -g npm-autoinit
npm config set onload-script npm-autoinit/autoinit
npm install socket.io


~ centos7 install jdk ~

connie 2017.03.31 | centos, java | | No Comments
yum install wget

wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-linux-x64.rpm"

rpm -ivh jdk-8u45-linux-x64.rpm


~ Centos7 php7 install pThread ~

connie 2017.03.30 | centos, php | | No Comments
yum install gcc php70w-devel

git clone https://github.com/krakjoe/pthreads.git
cd pthreads
./configure --with-php-config=/usr/bin/zts-php-config

cp modules/pthreads.so /usr/lib64/php-zts/modules/
nano /etc/php-zts.d/pthreads.ini

Testing for Thread Safety enable


Should see those thing below
Thread Safety => enabled

Execute server-side Script

zts-php -q ws_server.php

instead of using 
php -q 


~ centos epel error ~

connie 2016.11.07 | centos | | No Comments
yum check-update(如果有問題)
yum --disablerepo="epel"  check-update(而尼個無問題)

可以log error 去txt

URLGRABBER_DEBUG=1 yum check-update 2> debug.log

如見到有CA cert問題,方法係斬左舊有既CA cert再reinstall 新的
(但因為epel error ,所以必去用disable mode 尼del

yum --disablerepo="epel" reinstall ca-certificates
yum --disablerepo="epel" update ca-certificates

然後再 yum check-update 看看

Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again

nano /etc/yum.repos.d/epel.repo


uncomment baseurl and comment mirror

~ centos setting GEOIP ~

connie 2016.05.06 | centos, php | | No Comments
yum install GeoIP-devel
yum install php-pear
yum install php-pecl-geoip

cd /usr/share/GeoIP
wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz
wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz
gunzip GeoIP.dat.gz
gunzip GeoLiteCity.dat.gz
mv GeoLiteCity.dat GeoIPCity.dat

sudo systemctl restart php-fpm
sudo systemctl restart nginx


$record = geoip_record_by_name($_SERVER["REMOTE_ADDR"]);
    if ($record) {


« Previous Page | HOME |