Welcome to my world
How to enable snmapd on your vmware esxi server
esxcli system snmp set --communities public esxcli system snmp set --enable true esxcli network firewall ruleset set --ruleset-id snmp --allowed-all true esxcli network firewall ruleset set --ruleset-id snmp --enabled true esxcli system snmp set --syslocation "My Location" esxcli system snmp set --targets=10.10.0.0@161/public
Now you can start the service from the UI
A single disk zpool “test” crashed on my server (the disk died). It was just for testing, so nothing dramatic. However, when I rebooted the server I got the error message “failed Import ZFS pools by cache file”. A zpool destroy -f did not solve the problem. zpool status still showed the “test” pool. The other pool tank was still working.
What did help was
# disable the cache file for the existing pool(s) zpool set cachefile=none tank # delete the old pool file rm -rf /etc/zfs/zpool.cache # recreate if touch /etc/zfs/zpool.cache reboot # re-enable the cache zpool set cachefile=/etc/zfs/zpool.cache tank
Well, the cache file should be automatically updated when your pool configuration is changed, but with the crashed pool it did not.
After virtualizing a real computer with an old Linux I wanted to increase the partition size of the data drive. But I got this warning: resize2fs new size too large to be expressed in 32 bits
How to solve this? I started the VM with gparted-live.iso
# check file system e2fsck -f /dev/sdb1 # auf 64 bit ändern resize2fs -b /dev/sdb1 # increase partition .... wait :D / optional coffee resize2fs -p /dev/sdb1 # check file system e2fsck -f /dev/sdb1
Done :)
Ban all the attackers. Easier said than done. A website is constantly under attack as the whole server. One day I decided it was too difficult to maintain every single server and ban those attackers. Blocking IPs on the website level is too late. Also, it consumes a lot of resources. So I went for iptables. You can find it on github/JBlond/ban_em_all
DROP vs REJECT. Well, DROP is a bad option for debugging. Also, it is not the default behavior of the OS itself. Nothing is listing on a port? The OS sends a reject. Sadly I haven’t found a way to use REJECT when it comes to IPs. Using DROP on the other hand the automatic server/website scanners assume a firewall and it is more likely to continue the scan.
Installing git for windows isn’t hard anymore. I recommend installing “Git for Windows SDK” so you can install extra packages via Pacman. I like fish shell and tmux, and those aren’t included in the default installer. Either way, you can run bash and or fish on windows. The emojis and icons however don’t look very pretty, more like DOS-style.
Open a shell and cd to
C:\Program Files\Git\usr\share\mintty\emojis or C:\git-sdk-64\usr\share\mintty\emojis depending what installation you chose.
cd C:\git-sdk-64\usr\share\mintty\ mkdir emojis cd emojis curl -LO https://raw.githubusercontent.com/wiki/mintty/mintty/getemojis getemoji -d getemoji .
In mintty:
Options -> Text -> Emojis -> style: google
Options -> Text -> Character set -> UTF-8
On Windows Server is can be a hassle to find the start-up folder/autostart folder. Quick shortcut: Win Key + R -> shell:startup
Sometimes it is needed to add a jQuery event listener to an element that isn’t present in the DOM at the creation of the page but created during runtime or the result of an ajax call.
What doesn’t work is
jQuery(document).ready(function () {
jQuery('.selector').on({
click: function (event){
event.preventDefault();
console.log('I work only with existing elements');
}
});
});
However, there is a way to achieve that.
jQuery(document).ready(function () {
jQuery(document).on('click', '.selector', function (event){
event.preventDefault();
console.log('I work with a dynamically created elements');
});
});
#!/bin/bash SNAP=/usr/local/bin/cv4pve-autosnap SNAP_KEEP_DAILY=10 SNAP_HOST=10.10.10.10 $SNAP --host=$SNAP_HOST --username=root@pam --password='topsecret' --vmid=all snap --label='_daily_' --keep=$SNAP_KEEP_DAILY
net config server /autodisconnect:-1