I wanted to save the iptables list to disk, but got an error when I tried: # service iptables save The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl. The solution was to install the iptables-services package: # yum install iptables-services […]
mysql>update mysql.user set Password=PASSWORD('secret')where user='root';
mysql>flush privileges;
mysql>^D
service mysql stop
service mysql start
~OR~
service mysqld stop
service mysqld start
For MySQL 5.7: https://dev.mysql.com/doc/refman/5.7/en/resetting-permissions.html For some other v5.7 nodes, I had admin access via a different user’s login, so all I needed was this:
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ALTER USER'root'@'localhost'IDENTIFIED BY'secret';
Situation: Newbie mistake, used copy-and-paste to create a script that used variables with the incorrect variable name, then ran chown -R / OUCH Resolution: Since I had aa clone host nearby, I decided to export the remote root fs via NFS, mount it on the fouled nnode, and use find magic to repair. Here are […]
Note that the network address for the destination is shown as IPv6! That is the root cause of the issue: 1. Sendmail is sending mail from the IPv6 address instead of the IPv4 address 2. Google rejects IPv6 senders without proper reverse […]
erics, July 21st, 2023 
Categories: How-To's, Technology howto, IPTables, Save, service, service iptables save, tips
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