shukko·21 Useful Terminal Shortcuts Pro Linux Users Love to Use için yorumlar kapalı

Terminal shortcuts!

Shortcut Description
Ctrl + A Move to the start of the line.
Ctrl + E Move to the end of the line.
Ctrl + U Delete from the cursor to the start of the line.
Ctrl + K Delete from the cursor to the end of the line.
Ctrl + W Delete the word before the cursor.
Ctrl + L Clear the terminal screen.
Ctrl + C Stop the current process/command.
Ctrl + D Log out or exit the terminal.
Ctrl + Z Pause the current process (can be resumed).
Ctrl + R Search command history (backward search).
Up Arrow Show the previous command (from the command history).
Down Arrow Show the next command (from the command history).
!! Repeat the last command.
!n Repeat the nth command from history.
Tab Auto-complete commands, files, or directories.
Tab twice List all possible completions.
Ctrl + Shift + C Copy the selected text or command.
Ctrl + Shift + V Paste copied text or command.
Ctrl + Shift + N Open a new terminal window.
Ctrl + Shift + T Open a new tab in the terminal.
Ctrl + TaborCtrl + PageDown Switch between terminal tabs.

shukko·centos 7 ca expired? için yorumlar kapalı

t’s likely an old CA cert bundle on the system. Try the following to fix it:
Code:
curl -k -o /etc/ssl/certs/ISRG_Root_X1.pem https://letsencrypt.org/certs/isrgrootx1.pem
service directadmin restart

shukko·manjaro / arch linux BTRFS chroot grub install story. için yorumlar kapalı
[manjaro@manjaro-cinnamon ~]$ sudo pacman -Sy arch-install-scripts
:: Synchronizing package databases...
 core                  163.9 KiB   303 KiB/s 00:01 [######################] 100%
 extra                          1865.8 KiB  2.29 MiB/s 00:01 [################################] 100%
 community                         7.5 MiB  5.84 MiB/s 00:01 [################################] 100%
 multilib                        169.3 KiB  1411 KiB/s 00:00 [################################] 100%
error: failed retrieving file 'core.db' from kambing.ui.ac.id : Failed to connect to kambing.ui.ac.id port 80 after 5212 ms: Connection timed out
error: failed retrieving file 'core.db' from ftp.cuhk.edu.hk : Failed to connect to ftp.cuhk.edu.hk port 80 after 5210 ms: Connection timed out
error: failed retrieving file 'extra.db' from kambing.ui.ac.id : Failed to connect to kambing.ui.ac.id port 80 after 5202 ms: Connection timed out
error: failed retrieving file 'extra.db' from ftp.cuhk.edu.hk : Failed to connect to ftp.cuhk.edu.hk port 80 after 5201 ms: Connection timed out
error: failed retrieving file 'community.db' from kambing.ui.ac.id : Failed to connect to kambing.ui.ac.id port 80 after 5201 ms: Connection timed out
warning: too many errors from kambing.ui.ac.id, skipping for the remainder of this transaction
error: failed retrieving file 'community.db' from ftp.cuhk.edu.hk : Failed to connect to ftp.cuhk.edu.hk port 80 after 5202 ms: Connection timed out
warning: too many errors from ftp.cuhk.edu.hk, skipping for the remainder of this transaction
:: Some packages should be upgraded first...
resolving dependencies...
looking for conflicting packages...

Packages (2) archlinux-keyring-20221123-1  manjaro-keyring-20221028-4

Total Download Size:   1.64 MiB
Total Installed Size:  2.28 MiB
Net Upgrade Size:      0.02 MiB

:: Proceed with installation? [Y/n] y
:: Retrieving packages...
 archlinux-keyring-20221123...  1140.5 KiB  2.46 MiB/s 00:00 [################################] 100%
 manjaro-keyring-20221028-4-any  541.6 KiB  6.96 MiB/s 00:00 [################################] 100%
 Total (2/2)                    1682.2 KiB  2.49 MiB/s 00:01 [################################] 100%
(2/2) checking keys in keyring                               [################################] 100%
(2/2) checking package integrity                             [################################] 100%
(2/2) loading package files                                  [################################] 100%
(2/2) checking for file conflicts                            [################################] 100%
(2/2) checking available disk space                          [################################] 100%
:: Processing package changes...
(1/2) upgrading archlinux-keyring                            [################################] 100%
==> Appending keys from archlinux.gpg...
==> Locally signing trusted keys in keyring...
  -> Locally signed 1 keys.
==> Importing owner trust values...
gpg: inserting ownertrust of 4
==> Disabling revoked keys in keyring...
  -> Disabled 2 keys.
==> Updating trust database...
gpg: marginals needed: 3  completes needed: 1  trust model: pgp
gpg: depth: 0  valid:   1  signed:  20  trust: 0-, 0q, 0n, 0m, 0f, 1u
gpg: depth: 1  valid:  20  signed:  94  trust: 0-, 0q, 0n, 20m, 0f, 0u
gpg: depth: 2  valid:  74  signed:  28  trust: 74-, 0q, 0n, 0m, 0f, 0u
gpg: next trustdb check due at 2023-01-01
==> Updating trust database...
gpg: next trustdb check due at 2023-01-01
==> Delete expired Build-Server Key
==> Updating trust database...
gpg: marginals needed: 3  completes needed: 1  trust model: pgp
gpg: depth: 0  valid:   1  signed:  20  trust: 0-, 0q, 0n, 0m, 0f, 1u
gpg: depth: 1  valid:  20  signed:  94  trust: 0-, 0q, 0n, 20m, 0f, 0u
gpg: depth: 2  valid:  74  signed:  28  trust: 74-, 0q, 0n, 0m, 0f, 0u
gpg: next trustdb check due at 2023-01-01
(2/2) upgrading manjaro-keyring                              [################################] 100%
==> Appending keys from manjaro.gpg...
==> Locally signing trusted keys in keyring...
  -> Locally signed 4 keys.
==> Importing owner trust values...
gpg: setting ownertrust to 4
gpg: setting ownertrust to 4
==> Updating trust database...
gpg: marginals needed: 3  completes needed: 1  trust model: pgp
gpg: depth: 0  valid:   1  signed:  22  trust: 0-, 0q, 0n, 0m, 0f, 1u
gpg: depth: 1  valid:  22  signed:  94  trust: 0-, 0q, 0n, 22m, 0f, 0u
gpg: depth: 2  valid:  74  signed:  28  trust: 74-, 0q, 0n, 0m, 0f, 0u
gpg: next trustdb check due at 2023-01-01
:: Running post-transaction hooks...
(1/2) Reloading system manager configuration...
(2/2) Arming ConditionNeedsUpdate...

resolving dependencies...
looking for conflicting packages...

Packages (1) arch-install-scripts-28-1

Total Download Size:   0.02 MiB
Total Installed Size:  0.05 MiB

:: Proceed with installation? [Y/n] 
:: Retrieving packages...
 arch-install-scripts-28-1-any    15.8 KiB  42.3 KiB/s 00:00 [################################] 100%
error: failed retrieving file 'arch-install-scripts-28-1-any.pkg.tar.zst' from kambing.ui.ac.id : Failed to connect to kambing.ui.ac.id port 80 after 6160 ms: Connection timed out
error: failed retrieving file 'arch-install-scripts-28-1-any.pkg.tar.zst' from ftp.cuhk.edu.hk : Failed to connect to ftp.cuhk.edu.hk port 80 after 5212 ms: Connection timed out
(1/1) checking keys in keyring                               [################################] 100%
(1/1) checking package integrity                             [################################] 100%
(1/1) loading package files                                  [################################] 100%
(1/1) checking for file conflicts                            [################################] 100%
(1/1) checking available disk space                          [################################] 100%
:: Processing package changes...
(1/1) installing arch-install-scripts                        [################################] 100%
:: Running post-transaction hooks...
(1/1) Arming ConditionNeedsUpdate...
[manjaro@manjaro-cinnamon ~]$ sudo lsblk -f
NAME FSTYPE FSVER LABEL         UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
loop0
     squash 4.0                                                            0   100% /run/miso/sfs/livefs
loop1
     squash 4.0                                                            0   100% /run/miso/sfs/mhwdfs
loop2
     squash 4.0                                                            0   100% /run/miso/sfs/desktopfs
loop3
     squash 4.0                                                            0   100% /run/miso/sfs/rootfs
sda                                                                                 
└─sda1
     ext4   1.0   10tb1         d59252fa-9b89-42c4-b966-5606a6f02b89    8.2T     4% /run/media/manjaro/10tb1
sdb                                                                                 
└─sdb1
     ext4   1.0   10tb2         47a23e21-ec2f-4f79-b1e2-0d6d62c0c8ef  355.9G    91% /run/media/manjaro/10tb2
sdc                                                                                 
└─sdc1
     ext4   1.0   10tb3         0ea2653e-5cb2-4f29-8904-c45c525961af  751.8G    87% /run/media/manjaro/10tb3
sdd                                                                                 
└─sdd1
     ext4   1.0   EVO860-2      f12442dd-5018-45db-9523-d92a857bf6b1                
sde                                                                                 
└─sde1
     ext4   1.0   EVO860-1      ddb9d9b0-c043-4162-8607-28d0cfbf199f                
sdf  iso966 Jolie MANJARO_CINNAMON_2137
                                2022-08-26-08-40-30-00                     0   100% /run/miso/bootmnt
├─sdf1
│    iso966 Jolie MANJARO_CINNAMON_2137
│                               2022-08-26-08-40-30-00                              
└─sdf2
     vfat   FAT12 MISO_EFI      2664-DC36                                           
nvme1n1

├─nvme1n1p1
│    vfat   FAT32               3C81-0B10                                           
├─nvme1n1p2
│                                                                                   
├─nvme1n1p3
│    ntfs                       429481D89481CF3B                                    
└─nvme1n1p4
     ntfs                       DC76D99C76D9782A                                    
nvme0n1

├─nvme0n1p1
│    vfat   FAT32 NO_LABEL      D380-908E                                           
└─nvme0n1p2
     btrfs                      aca29224-1164-4d3f-807c-170e5a9174f2                
[manjaro@manjaro-cinnamon ~]$ sudo mount -o subvol=@ /dev/nvme0n1p2 /mnt
[manjaro@manjaro-cinnamon ~]$ sudo mount -o subvol=@log /dev/nvme0n1p2 /mnt/var/log
[manjaro@manjaro-cinnamon ~]$ sudo mount -o subvol=@cache /dev/nvme0n1p2 /mnt/var/cache
[manjaro@manjaro-cinnamon ~]$ sudo mount -o subvol=@home /dev/nvme0n1p2 /mnt/home
[manjaro@manjaro-cinnamon ~]$ sudo mount /dev/nvme0n1p1 /mnt/boot/efi
[manjaro@manjaro-cinnamon ~]$ 
[manjaro@manjaro-cinnamon ~]$ 
[manjaro@manjaro-cinnamon ~]$ arch
arch-chroot                 archlinux-java              archlinux-keyring-wkd-sync
[manjaro@manjaro-cinnamon ~]$ arch-chroot /mnt
==> ERROR: This script must be run with root privileges
[manjaro@manjaro-cinnamon ~]$ sudo arch-chroot /mnt
[manjaro-cinnamon /]# sudo arch-chroot /mnt
Installing for x86_64-efi platform.
Installation finished. No error reported.
[manjaro-cinnamon /]#

Summary:

Whenever I did a BIOS update my manjaro cinnamon installation which boots in UEFI mode and which also happens to be a BTRFS installation fucks up and never boots again , because by somehow my fucking BIOS can not find the UEFI boot entry again.

So what I do do fix this problem:

1- create a bootable manjaro cinnamon usb using etcher.

2- boot from this usb into manjaro cinnamon live using UEFI (important)

3- then appy these commands: ( details above)

sudo pacman -Sy arch-install-scripts

sudo lsblk -f

sudo mount -o subvol=@ /dev/nvme0n1p2 /mnt

sudo mount -o subvol=@log /dev/nvme0n1p2 /mnt/var/log

sudo mount -o subvol=@cache /dev/nvme0n1p2 /mnt/var/cache

sudo mount -o subvol=@home /dev/nvme0n1p2 /mnt/home

sudo mount /dev/nvme0n1p1 /mnt/boot/efi

sudo arch-chroot /mnt

grub-install

exit chroot , reboot , set BIOS UEFI boot entry to “manjaro” again and boot….

important notes: For this to work you MUST first boot into Live USB environment using UEFI boot. Otherwise you can not chroot and write grub to /boot/efi

shukko·ntp / ntpd almalinux ? chronyd için yorumlar kapalı

almalinuxda nedense ntp/ntpd yi kaldirmislar

yerine chronyd yi koymuslar

bu minik yazilim artik kendi kendine network icin ntpd serverda oluyor

ama ben bu ozelligini kullanmiyorum su an

kurmak icin

dnf install chrony
systemctl start chronyd
systemctl status chronyd
systemctl enable chronyd

shukko·Adaptec RAID controller: how to get rebuild status için yorumlar kapalı
[root@host ~]# arcconf getstatus 1
Controllers found: 1
Logical device Task:
 Logical device : 0
 Task ID : 100
 Current operation : Rebuild
 Status : In Progress
 Priority : High
Percentage complete : 0

Command completed successfully.
[root@host ~]#
Title:	Adaptec ARCCONF Command Line Utility B25335
Filename:	arcconf_B25335.zip

https://download.adaptec.com/raid/storage_manager/arcconf_B25335.zip

https://docs.hetzner.com/robot/dedicated-server/raid/adaptec-raid-controller/#how-to-restore-a-faulty-array

An example for the first array on the first controller would be:

arcconf SETSTATE 1 LOGICALDRIVE 0 OPTIMAL ADVANCED nocheck noprompt


https://www.thomas-krenn.com/en/wiki/Adaptec_arcconf_CLI_Commands

arcconf GETCONFIG 1

shukko·2 tane ayar ? için yorumlar kapalı

2 tane ayar var eger nginx_apache run etmiyorsan

ayar1: mpm event hikayesi

nano /etc/httpd/conf/extra/httpd-mpm.conf

<IfModule mpm_event_module>
    StartServers             8
    MinSpareThreads         48
    MaxSpareThreads        148
    ThreadsPerChild         64
    ServerLimit             48
    MaxRequestWorkers     3072
    MaxConnectionsPerChild   12000
</IfModule>

ayar2: php-fpm ccocuklarinin dayanilmaz gurultusu:

nano /usr/local/php74/etc/php-fpm.conf

pm = ondemand
pm.max_children = 100
pm.process_idle_timeout = 10
pm.max_requests = 500

shukko·add dummy fake monitor to headless vm for to change screen resolution etc. için yorumlar kapalı

Basically install a dummy driver:

sudo apt-get install xserver-xorg-video-dummy

Then write it in the /usr/share/X11/xorg.conf.d/xorg.conf (or possibly /etc/X11/xorg.conf) file (create one, if it does not exist):

Section "Device"
    Identifier  "Configured Video Device"
    Driver      "dummy"
EndSection

Section "Monitor"
    Identifier  "Configured Monitor"
    HorizSync 31.5-48.5
    VertRefresh 50-70
EndSection

Section "Screen"
    Identifier  "Default Screen"
    Monitor     "Configured Monitor"
    Device      "Configured Video Device"
    DefaultDepth 24
    SubSection "Display"
    Depth 24
    Modes "1024x800"
    EndSubSection
EndSection

Then restart the computer.