Fail2Ban
https://blog.lael.be/post/1209
일정 횟수 실패하면 차단하는 프로그램. 쉘 보안 강화
유용한 GUI 도구 cpupower-gui yay -S cpupower-gui 아치 우분투
기존 pacman의 archlinux 공식 패키지를 포함하여 커뮤니티 패키지(AUR)까지 관리할 수 있는 패키지 매니저 yay
그놈 문서에 작성 확장기능
Blur my Shell 그놈 쉘에 투명, 블러 효과를 준다.
cpufreq cpu 가버너 주파수 설정
Desktop Icons NG 바탕화면 아이콘 추가 우분투 기본 아이콘 확장기능
system-monitor 시스템 모니터를 트레이에 추가
systemctl
$ systemctl start [service]
$ systemctl stop [service]
$ systemctl enable [service]
$ systemctl disable [service]
UFR II/UFRII LT Printer Driver
Fedora/Ubuntu/CentOS/Debian/UOS/Kylin OS/NeoKylin OS
아치 미지원 ㅋㅋ https://asia.canon/en/consumer/search?q=UFR+II%2FUFRII+LT+Printer+Driver&type=support
remove swap
Sometimes it can be prudent to reduce swap space after installation. For example, say you downgraded the amount of RAM in your system from 1 GB to 512 MB, but there is 2 GB of swap space still assigned. It might be advantageous to reduce the amount of swap space to 1 GB, since the larger 2 GB could be wasting disk space.
You have three options: remove an entire LVM2 logical volume used for swap, remove a swap file, or reduce swap space on an existing LVM2 logical volume. 5.3.1. Reducing Swap on an LVM2 Logical Volume
To reduce an LVM2 swap logical volume (assuming /dev/VolGroup00/LogVol01 is the volume you want to extend):
Disable swapping for the associated logical volume:
# swapoff -v /dev/VolGroup00/LogVol01
Reduce the LVM2 logical volume by 512 MB:
# lvm lvreduce /dev/VolGroup00/LogVol01 -L -512M
Format the new swap space:
# mkswap /dev/VolGroup00/LogVol01
Enable the extended logical volume:
# swapon -va
Test that the logical volume has been reduced properly:
# cat /proc/swaps # free
5.3.2. Removing an LVM2 Logical Volume for Swap
The swap logical volume cannot be in use (no system locks or processes on the volume). The easiest way to achieve this it to boot your system in rescue mode. Refer to for instructions on booting into rescue mode. When prompted to mount the file system, select Skip.
To remove a swap volume group (assuming /dev/VolGroup00/LogVol02 is the swap volume you want to remove):
Disable swapping for the associated logical volume:
# swapoff -v /dev/VolGroup00/LogVol02
Remove the LVM2 logical volume of size 512 MB:
# lvm lvremove /dev/VolGroup00/LogVol02
Remove the following entry from the /etc/fstab file:
/dev/VolGroup00/LogVol02 swap swap defaults 0 0
Test that the logical volume has been extended properly:
# cat /proc/swaps # free
5.3.3. Removing a Swap File
To remove a swap file:
At a shell prompt as root, execute the following command to disable the swap file (where /swapfile is the swap file):
# swapoff -v /swapfile
Remove its entry from the /etc/fstab file.
Remove the actual file:
# rm /swapfile