imegg

摘要：终端输入框rails之后出现Could not find gem 'sqlite3 (>= 0) ruby' in the gems available on this machine.Run `bundle install` to install missing gems.说是没有安装sqlite3gem install sqlite3又说安装失败,按提示查了一下日志gem_make.out,可能是没有安装sqlite-devleyum install sqlite-devel然后gem install sqlite3成功好吧,现在rails server 出错,但是屏 阅读全文

摘要：yum install ssh启动SSH service sshd start开机运行 chkconfig sshd on#ServerKeyBits 1024-->ServerKeyBits 1024 加密强度#PermitRootLogin yes -->PermitRootLogin no 不允许root登陆#PasswordAuthentication yes -->PasswordAuthentication yes 不允许密码方式的登录#PermitEmptyPasswords no -->PermitEmptyPasswords no 不允许空密码登陆 阅读全文