varnish

varnish

To clear cache, run Get stats See Varnish logs mod_rpaf help with showing users real IP when site is behind

proxy

proxy

Squid ShadowSocks Tor Reverse proxy proxychains debugging proxy Install mitmproxy proxy OWASP Zed Attack Proxy Project https://www.telerik.com/fiddler https://portswigger.net/burp Charles HTTP

install sysstat on centos

install sysstat on centos

To install sysstat/sar on CentOS, run Enable and start sysstat Allow several minutes to collect data, then you will be

Amazon RDS ERROR 1040 (08004): Too many connections

Amazon RDS ERROR 1040 (08004): Too many connections

On an Amazon RDS Aurora data base, when i connect, i get error This error is due to max_connections setting

hdd

blkid Checking NVMe Disk No space left on device smartctl sfdisk Setup ZFS file system in Ubuntu Resize Amazon EC2

No space left on device

No space left on device

On a server, when creating new files, i get error – “No space left on device”. Check disk space with

Disable IPv6

Disable IPv6

To disable IPv6, edit Add following run Related Posts apt force IPv4

vim E509: Cannot create backup file (add ! to override)

vim E509: Cannot create backup file (add ! to override)

When i save file on a server in vim, i get error “FILE_NAME.EXTN” E509: Cannot create backup file (add !

vim

vim

Vim 8 goes Visual Mode on right click vim E509: Cannot create backup file (add ! to override) Install vim

Vim 8 goes Visual Mode on right click

Vim 8 goes Visual Mode on right click

Vim 8 shipped with Fedora 25 and Debian 9 when you mouse right click or use middle button to insert

apt error after MariaDB to MySQL change

apt error after MariaDB to MySQL change

I have install MariaDB on a Ubuntu 16.04 server. Then installed Virtualmin, that require MySQL, so it removed MariaDB and

upload

upload

uppy Open Source upload progress bar. https://uppy.io