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廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ster用户的的UID和GID相同在两台节点上分别执行：
cat /etc/passwd | grep hacluster
结果相同即可
5.2配置heartbeat
在从节点上也作同样的操作
配置主节点的heartbeatHeartbeat的主要配置文件有ha.cf、haresources、authkeys，均在/etc/ha.d目录 ...
Mongod complains that there is no /data/db folder
...:
First check what user and group your mongo user has:
# grep mongo /etc/passwd
mongod:x:498:496:mongod:/var/lib/mongo:/bin/false
You should have an entry for mongod in /etc/passwd , as it's a daemon.
sudo chmod 0755 /data/db
sudo chown -R 498:496 /data/db # using the user-id , group-id
Yo...
MySQL “incorrect string value” error when save unicode string in Django
... automatically.
#! /usr/bin/env python
import MySQLdb
host = "localhost"
passwd = "passwd"
user = "youruser"
dbname = "yourdbname"
db = MySQLdb.connect(host=host, user=user, passwd=passwd, db=dbname)
cursor = db.cursor()
cursor.execute("ALTER DATABASE `%s` CHARACTER SET 'utf8' COLLATE 'utf8_unic...
Reading specific lines only
...above:
>>> import linecache
>>> linecache.getline('/etc/passwd', 4)
'sys:x:3:3:sys:/dev:/bin/sh\n'
Change the 4 to your desired line number, and you're on. Note that 4 would bring the fifth line as the count is zero-based.
If the file might be very large, and cause problems whe...
How to generate an openSSL key using a passphrase from the command line?
...assword being viewable as a process use a function in a shell script:
get_passwd() {
local passwd=
echo -ne "Enter passwd for private key: ? "; read -s passwd
openssl genpkey -aes-256-cbc -pass pass:$passwd -algorithm RSA -out $PRIV_KEY -pkeyopt rsa_keygen_bits:$PRIV_KEYSIZE
}
...
Remote Connections Mysql Ubuntu
...fective immediately
GRANT ALL ON *.* TO 'user'@'localhost' IDENTIFIED BY 'passwd' WITH GRANT OPTION;
GRANT ALL ON *.* TO 'user'@'%' IDENTIFIED BY 'passwd' WITH GRANT OPTION;
FLUSH PRIVILEGES;
EXIT;
user == the user u use to connect to mysql ex.root
passwd == the password u use to connect to...
转型产品经理必看 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...领域的产品经理们，奉为经典。张小龙，微信之父，深谙人性，理解潮流，能把一款产品做到人们的生活中，几亿人都为之买单，实属境界。相信每一个产品经理都有改变世界的梦想，也都在这条不归路上螨跚前行，改变世界的...
How to set proxy for wget?
...I added the following lines in $HOME/.wgetrc
http_proxy = http://uname:passwd@proxy.blah.com:8080
use_proxy = on
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Rails: FATAL - Peer authentication failed for user (PG::Error)
...t know what your postgres user's password is? Change it like this:
1) Run passwd as a superuser:
$ sudo passwd postgres
2) Enter your accounts password for sudo (nothing to do with postgres):
[sudo] password for starkers: myaccountpassword
3) Create the postgres account's new passwod:
Enter ...
How To Set Up GUI On Amazon EC2 Ubuntu server
... the GUI
Create new user with password login
sudo useradd -m awsgui
sudo passwd awsgui
sudo usermod -aG admin awsgui
sudo vim /etc/ssh/sshd_config # edit line "PasswordAuthentication" to yes
sudo /etc/init.d/ssh restart
Setting up ui based ubuntu machine on AWS.
In security group open port 59...