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DNS in Binder process communication ----- servicemanager Just as "DNS" in the Internet needs to be ready before browsing all kinds of web pages, so service manager needs to be in a normal state before someone uses Binder. Next, we briefly introduce service manager. 1. When to start Since someone needs to be ready befo ...

After understanding the installation of Oracle 10g and 11g in win10, this article will cover the installation of Oracle 11g in CentOS 7. 1. Preconditions CentOS7 workstation installed jdk8 has been installed 2. Software download Baidu SkyDrive Links: https://pan.baidu.com/s/1u3Qjguim-7Z-4GoHDF8Pxg Extraction code: gwig 3. Co ...

Execute the command sudo useradd --help The error is reported as follows:fuyun is not in the sudoers file. This incident will be reported. Reason: the user does not have root permission temporarily Solution: modify sudoers file Switch to the root user, su -, run the visudo command, which is used ...

Under CentOS7.X: 1. firewall View firewall status: [root@localhost sunan]# systemctl status firewalld.service ● firewalld.service - firewalld - dynamic firewall daemon Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled) Active: inactive (dead) Docs: man:firewalld(1) Where Active is inactive ( ...

sed workflow Sed is an online, non-interactive editor that processes one line of content at a time. When processing, the currently processed rows are stored in a temporary buffer, called pattern space, and then the contents of the buffer are processed with sed command. After processing, the contents of the buffer are sent to the screen. Then ...

I. demand Base new to 300 servers, need to install the operating system version 7.6 of CentOS, choose to use PXE for batch installation. II. Preparations Use the layer-2 switch to connect the server without the operating system installed, so as to avoid affecting the normal server of the current network. Upload the operating system image to ...

How to control the running state of the service? How to switch different levels of operation? service control ntsysv Imitating graphical interactive interface, centralized configuration of various service startup status level 35: Manage services at the specified runlevel, not just at the current runlevel. [root@localhost ~]# ntsysv --level ...

Topology required for the experiment: First, three machines shut down selinux and firewall. [root@hostlocal ~]# systemctl stop firewalld [root@hostlocal ~]# iptables -F [root@hostlocal ~]# setenforce 0 // temporary, if permanently closed, modify / etc/sysconfig/selinux and change enforcing to disable ...

Today, let's take a look at Binder, a subsystem of the Android system.Let's start with the Binder subsystem, which is one of the methods used for interprocess communication in Android systems.So why learn the binder system?With the binder subsystem in hand, we can have a good understanding of how Android system processes communicate with each ...

Profile Details Most of the configuration files are comment line default configuration items.The file follows the INI format and is divided into several categories of configurations, which are described below.Before that, take a look at where the profile is stored and how to get the profile template from the official website. Location of profi ...