linux:digitalocean
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| linux:digitalocean [2014/12/28 03:13] – [create swap file for your linux server] admin | linux:digitalocean [2022/10/29 16:15] (current) – external edit 127.0.0.1 | ||
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| Line 5: | Line 5: | ||
| <code bash> | <code bash> | ||
| yum install vim mc man telnet | yum install vim mc man telnet | ||
| + | </ | ||
| + | ==== create swap file for your linux server ==== | ||
| + | Most **cloud virtual machine providers do not set up swapfiles** as part of their server provisioning. | ||
| + | |||
| + | If you are running the recommended 2 GB of memory for Discourse, a swap file is technically not required, but can be helpful just **in case your server experiences memory pressure.** With a swap file, rather than **randomly terminating processes with an out of memory error**, things will slow down instead. | ||
| + | |||
| + | This can be done at any time from the command line on your server. | ||
| + | |||
| + | Set up a 1 GB swap file | ||
| + | |||
| + | Adding a swap file gives Discourse some extra breathing room during memory-intensive operations. 1GB swap should suffice, though if you are attempting the minimum memory configuration you should set up a 2GB swap. | ||
| + | |||
| + | In the shell you have opened to your droplet, do the following: | ||
| + | - Step1: Check your swap on<code bash> | ||
| + | swapon -s | ||
| + | </ | ||
| + | - Step2: Create an empty swapfile< | ||
| + | sudo install -o root -g root -m 0600 /dev/null /swapfile | ||
| + | </ | ||
| + | - Step3: write out a 1 GB file named ' | ||
| + | dd if=/ | ||
| + | </ | ||
| + | - Step4: tell linux this is the swap file:< | ||
| + | mkswap /swapfile | ||
| + | </ | ||
| + | - Step5: Activate it<code bash> | ||
| + | swapon /swapfile | ||
| + | </ | ||
| + | - Step6: Add it to the file system table so its there after reboot:< | ||
| + | echo "/ | ||
| + | </ | ||
| + | - Step7: Set the swappiness to 10 so its only uses as an emergency buffer< | ||
| + | sudo sysctl -w vm.swappiness=10 | ||
| + | echo vm.swappiness = 10 | sudo tee -a / | ||
| </ | </ | ||
| ==== mysqld ==== | ==== mysqld ==== | ||
| Line 26: | Line 60: | ||
| </ | </ | ||
| - | ===== 2. copy data from hostgator to Digitalocean ===== | + | ===== 2. Copy data from hostgator to Digitalocean ===== |
| ==== create backup file for web and database on Hostgator ==== | ==== create backup file for web and database on Hostgator ==== | ||
| === backup web === | === backup web === | ||
| Line 38: | Line 72: | ||
| </ | </ | ||
| ==== copy data to Digitalocean with scp ==== | ==== copy data to Digitalocean with scp ==== | ||
| + | (To run scp, you must install openssh-clients both client and server) | ||
| * check ssh connect: <code bash> | * check ssh connect: <code bash> | ||
| ssh -p 2222 [email protected] | ssh -p 2222 [email protected] | ||
| - | | + | </ |
| * scp<code bash> | * scp<code bash> | ||
| scp -P 2222 [email protected]: | scp -P 2222 [email protected]: | ||
| scp -P 2222 [email protected]: | scp -P 2222 [email protected]: | ||
| - | | + | </ |
| ===== 3.Import database and config to run web on DigitalOcean ===== | ===== 3.Import database and config to run web on DigitalOcean ===== | ||
| ==== Import database ==== | ==== Import database ==== | ||
| * create database:< | * create database:< | ||
| mysqladmin create babyshopvn; | mysqladmin create babyshopvn; | ||
| - | | + | </ |
| * Import database:< | * Import database:< | ||
| mysql -f --default-character-set=utf8 -uroot babyshopvn < babyshopvn.sql | mysql -f --default-character-set=utf8 -uroot babyshopvn < babyshopvn.sql | ||
| - | | + | </ |
| ==== config httpd ==== | ==== config httpd ==== | ||
| === check location of httpd config file === | === check location of httpd config file === | ||
| Line 98: | Line 133: | ||
| </ | </ | ||
| </ | </ | ||
| - | === Create | + | === create |
| Create helloworld.php in / | Create helloworld.php in / | ||
| <code php> | <code php> | ||
| Line 159: | Line 194: | ||
| * secure user:< | * secure user:< | ||
| AllowUsers root anhvc | AllowUsers root anhvc | ||
| + | </ | ||
| + | * change usedns in sshd.conf< | ||
| + | UseDNS no | ||
| </ | </ | ||
| ==== config php debug ==== | ==== config php debug ==== | ||
linux/digitalocean.1419736411.txt.gz · Last modified: 2022/10/29 16:15 (external edit)