The systemd-tmpfiles Service Failed
The systemd-tmpfiles Service Failed SYMPTOMS ~]# systemctl list-units● systemd-tmpfiles-setup-dev.service loaded failed failed Create Static Device Nodes in /dev● systemd-tmpfiles-setup.service loaded failed failed Create Volatile Files and Directories~]# systemctl status systemd-tmpfiles-setup.service● systemd-tmpfiles-setup.service - Create Volatile Files and Directories Loaded: loaded (/usr/...
Manually Upgrading the RedHat Kernel
Manually Upgrading the RedHat Kernel Reference: ・ How do I upgrade the kernel to a particular version manually? ・ How to update/upgrade the Red Hat Enterprise Linux kernel? Overview of kernel packages Red Hat Enterprise Linux contains the following kernel packages: kernel — Contains the kernel for single-core, multi-core, and multi-processor systems. kernel-debug — Contains a kernel with numerous debugging options enabled for kernel diagnosis, at the expense of reduced performance. ...
How to Configure kdump on RHEL 7
How to Configure kdump on RHEL 7 About kdump and kexec kdump is a service which provides a crash dumping mechanism. The service enables you to save the contents of the system memory for analysis. kdump uses the kexec system call to boot into the second kernel (a capture kernel) without rebooting; and then captures the contents of the crashed kernel’s memory (a crash dump or a vmcore) and saves it into a file. The second kernel resides in a reserved part of the system memory. Memory require...
Installing Oracle Instant Client 11.2.0.4 on RHEL 7.4
Installing Oracle Instant Client 11.2.0.4 on RHEL 7.4 Download instant client RPMs on Instant Client Download Page. ~]# ll /softtotal 59872-r-xr-x---. 1 root root 59865008 Oct 15 17:40 oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm-r-xr-x---. 1 root root 610222 Oct 15 17:40 oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm-r-xr-x---. 1 root root 828333 Oct 15 17:40 oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm Install RPMs. soft]# rpm -ivh oracle-instantclient...
How to Install .NET Framework 3.5 on Windows Server 2016,2019,2022
How to Install .NET Framework 3.5 on Windows Server 2016,2019,2022 Insert the Windows installation media. Start the Add Roles and Features Wizard. On the Select features page, select the .NET Framework 3.5 Features check box, and then click Next. On the Confirm installation selections page, click the Specify an alternate source path link. The screenshot for this step is listed below. On the Specify Alternate Source Path page, type the path of the SxS folder as a local path or as a...
How to Activate Windows 10 Pro
How to Activate Windows 10 Pro slmgr.vbs /upkslmgr /ipk W269N-WFGWX-YVC9B-4J6C9-T83GXslmgr /skms kms.03k.orgslmgr /atoslmgr.vbs -xpr
Setting up NIC Teaming for Windows Server
Setting up NIC Teaming for Windows Server Creating a team There are two ways to invoke the New Team dialog box: Select the Tasks menu in the Teams tile and then select New Team, or Right click on an available adapter in the Network Adapters tab and select the Add to new team item. Multi-select works for this: you can select multiple adapters, right-click on one, select Add to new team, and they will all be pre-marked in the New Team dialog box. Both of these will cause the New Team dialog...
LS_COLORS
LS_COLORS LS_COLORS=$LS_COLORS:'ow=1;32:' 其中 ow 的意思是 OTHER_WRITABLE 参考： 编码 颜色 / 动作 0 重新设置属性到缺省设置 1 设置粗体 2 设置一半亮度（模拟彩色显示器的颜色） 4 设置下划线（模拟彩色显示器的颜色） 5 设置闪烁 7 设置反向图象 22 设置一般密度 24 关闭下划线 25 关闭闪烁 27 关闭反向图象 30 设置黑色前景 31 设置红色前景 32 设置绿色前景 33 设置棕色前景 34 设置蓝色前景 35 设置紫色前景 36 设置青色前景 37 设置白色前景 38 在缺省的前景颜色上设置下划线 39 在缺省的前景颜色上关闭下划线 40 设置黑色背景 41 设置红色背景 42 设置绿色背景 43 设置棕色背景 44 设置蓝色背...
Find and Remove Trash Files
Find and Remove Trash Files #!/bin/bashPATH=$PATH:.:/etc; export PATHALERT_TRACE=/u01/app/oracle/diag/rdbms/orcl/orcl/trace; export ALERT_TRACELI_TRACE=/u01/app/logs/diag/tnslsnr/pacemaker-1/listener_orcl/trace; export LI_TRACEORACLE_SID=orcl; export ORACLE_SID[[ -d "/u01/app/logs" ]] || echo "No trace directory!!!" && exit 0echo "Deleting: $ORACLE_SID - trace log files"# Copy current trace filecp -p $ALERT_TRACE/alert_$ORACLE_SID.log $ALERT_TRACE/alert_$ORACLE_SID."$(date +%y%m%d)"c...
Oracle Database Inspection Commands
Oracle Database Inspection Commands OS hostnameip acat /etc/os-releasecat /etc/hostsdf -hTfree -ggrep Huge /proc/meminfocat /proc/cmdlinecat /proc/net/bonding/bond0cat /proc/net/bonding/bond1vmstat 2 5iostat 1 2top -n 1lsnrctl status CRS ocrcheckocrconfig -showbackupcrsctl stat res -tasmcmd lsdg DB set lines 200 pages 100select name,open_mode,log_mode from v$database;select * from v$version;select * from nls_database_parameters;select 'DB Size/Used/Rate',trunc(sum(a.bytes)/1024/1024/1024,...
