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可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术

... <stdio.h> #include <pwd.h> static void func(int signo) { struct passwd *rootptr; if( ( rootptr = getpwnam( "root" ) ) == NULL ) { err_sys( "getpwnam error" ); } signal(SIGALRM,func); alarm(1); } int main(int argc, char** argv) { signal(SIGALRM,f...
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mac os下如何获得root权限? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...root权限?操作步骤:1.打开实用工具 -> 终端2.键入sudo passwd root 然后提示你输入当前登录用户密码,通过以后,提示你输入两遍root密码。...操作步骤: 1.打开实用工具 -> 终端 2.键入sudo passwd root 然后提示你输入当前登录用...
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Reading specific lines only

...above: &gt;&gt;&gt; import linecache &gt;&gt;&gt; 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...
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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 } ...
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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操作 配置主节点heartbeatHeartbeat主要配置文件有ha.cf、haresources、authkeys,均在/etc/ha.d目录 ...
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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...
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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 share | improve this answer | follow ...
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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 ...
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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...
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Changing default shell in Linux [closed]

... @ShaktiMalik I believe the configure file is /etc/passwd, but I didn't double check it. – Summer_More_More_Tea Feb 11 '14 at 13:18 ...