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database
Downgrade to v0.11 in order to properly upgrade without losing data. #6373
Closedclaytondukes opened this issue on 13 Apr 2016 · 7 comments Comments One of our servers was patched with kernel updates today, now influx won’t start. run: create server: detected /var/lib/influxdb/meta/raft.db. To proceed, you'll need to either 1) downgrade to v0.11.x,
database
MySQL user DB does not have password columns - Installing MySQL
1. Install MySql-5.7.6 ~ .dmg(Community Server) and workbench. 2. Turn off the server on OSX System preferences. 3. Access MySql with console. The command was mysqld_safe --skip-grant 4. Execute update user set password=password('1111') where user='root'; and got an error message
Linux
如何設定多個網路介面在相同網段
例如在3個網路介面設定不一樣的IP(同一個網段) 192.168.0.100 192.168.0.101 192.168.0.102 同一個網段的其他電腦 192.168.0.199 ping這三個介面都會被回應 但真正回應的介面是在路由表的第一個介面(可由arp -n 得知) 而且每次重開機會亂跳 以前只會這樣設 /etc/sysctl.conf net.ipv4.conf.all.arp_ignore=1 net.ipv4.conf.all.arp_announce=2 net.ipv4.conf.default.arp_ignore=1
Hardware
Fibre Channel wikipedia
From Wikipedia, the free encyclopediaJump to navigationJump to search Fibre Channel (FC) is a high-speed data transfer protocol (commonly running at 1, 2, 4, 8, 16, 32, and 128 gigabit per second rates) providing in-order, lossless[1] delivery of raw block data[2], primarily used to connect computer data storage
Java
Enabling MD5withRSA in newer versions of Java
Oracle have decided to disable access to Java apps that use MD5withRSA signatures. For instance, when launching the .jnlp file to connect to my Lantronix Spider remote KVM, I am presented with this error: To fix this, we have to change Java’s security settings. Unfortunately, settings for signature algorithms
Setup
How to prepare S3 Cloud server on Ubuntu 16.04 and OEL7.X
What is Docker? docker 基本教學 – 從無到有 Docker-Beginners-Guide https://github.com/twtrubiks/docker-tutorial Install Docker environment on Ubuntu 16.04 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add – sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add – sudo apt-get install c sudo curl