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distros:opensuse_tumbleweed_server [2019/05/28 08:42] – Sean Rhonedistros:opensuse_tumbleweed_server [2019/05/28 08:46] – Sean Rhone
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 ====== Notable Folders and Commands ====== ====== Notable Folders and Commands ======
  
-===== Zypper Repos =====+===== Zypper ===== 
 + 
 +==== Find Orphans ==== 
 + 
 +**** 
 + 
 +  zypper packages --orphaned 
 + 
 +==== Remove Package and Deps ==== 
 + 
 +**** 
 + 
 +  sudo zypper remove --clean-deps 'x' 
 + 
 +==== Show Installed Patterns ==== 
 + 
 +**** 
 + 
 +  sudo zypper patterns --installed-only
  
 ==== Folder ==== ==== Folder ====
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 **** ****
  
-  zypper lr -p+  zypper repos --priority
  
 ===== GPG Keys ===== ===== GPG Keys =====
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   watch -n 0.1 grep \'cpu MHz\' '/proc/cpuinfo'   watch -n 0.1 grep \'cpu MHz\' '/proc/cpuinfo'
  
-===== Partition Information =====+===== OpenSSL Supported Ciphers =====
  
 **** ****
 +
 +  openssl ciphers -v | awk '{print $2}' | sort | uniq
 +
 +===== Partition Information =====
 +
 +  * Both commands do the same things
  
   df -hT   df -hT
 +
 +  df --human-readable --print-type
  
 ===== Encryption Information ===== ===== Encryption Information =====
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   sudo cryptsetup -v status '/dev/dm-0'   sudo cryptsetup -v status '/dev/dm-0'
 +
 +===== ATA Secure Erase =====
 +
 +  * :!: All ''hdparm'' commands below assume actions to be performed on ''/dev/sda''
 +
 +==== Preparation ====
 +
 +  sudo zypper install 'hdparm' && sync
 +
 +  sudo hdparm -I '/dev/sda'
 +
 +  systemctl suspend
 +
 +==== ATA Secure Erase ====
 +
 +<code>sudo blkdiscard --verbose '/dev/sda'</code>
 +
 +<code>sudo hdparm --user-master u --security-set-pass 'x' '/dev/sda' && sudo hdparm --user-master u --security-erase-enhanced 'x' '/dev/sda' && sync</code>
 +
 +<code>sudo hdparm --user-master u --security-set-pass 'x' '/dev/sda' && sudo hdparm --user-master u --security-erase 'x' '/dev/sda' && sync</code>
 +
 +===== NVMe Erase =====
 +
 +  * NVMe Erase from the start page lands here and I usually use a Ubuntu LiveUSB to do this, hence the ''apt'' command
 +
 +  sudo apt install 'nvme-cli' -y && sync
 +
 +  sudo zypper install 'nvme-cli' -y && sync
 +
 +  sudo nvme format '/dev/nvme0' --reset --ses='1' --pil='0' --pi='0' --ms='0' && sync
 +
 +===== Clean EFI Variables =====
 +
 +  * :!: Could potentially cause a firmware brick or other issues with improper EFI implementations, use at own risk ((personally tested fine on several Acer and Dell computers))
 +  * Safer way is to use ''efibootmgr'' to remove boot entries individually
 +
 +  sudo rm -f '/sys/firmware/efi/efivars/'* || sync && sudo efibootmgr -v
 +
 +===== RAID =====
 +
 +==== Controller Details ====
 +
 +****
 +
 +  sudo mdadm --detail-platform
 +
 +==== Create Software RAID ====
 +
 +  * :?: Came from old notes; I **assume** this worked at some point, but in any case, the syntax looks nice :p
 +
 +  sudo mdadm --create '/dev/md0' --name='RAID' --level='0' --raid-devices='3' '/dev/sda' '/dev/sdb' '/dev/sdc' --verbose
  
 ===== Hyper-threading Information ===== ===== Hyper-threading Information =====
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   gcc -v -E -x c -march=native -mtune=native - < /dev/null 2>&1 | grep cc1 | perl -pe 's/ -mno-\S+//g; s/^.* - //g;'   gcc -v -E -x c -march=native -mtune=native - < /dev/null 2>&1 | grep cc1 | perl -pe 's/ -mno-\S+//g; s/^.* - //g;'
 +
 +===== FirewallD =====
 +
 +==== List Active Rules ====
 +
 +****
 +
 +  sudo firewall-cmd --list-all
 +
 +==== List Available Services ====
 +
 +****
 +
 +  sudo firewall-cmd --get-service
 +
 +==== Reload ====
 +
 +****
 +
 +  sudo firewall-cmd --reload
 +
 +==== Add/Remove Service ====
 +
 +  * Add ''--permanent'' as-needed to allow the rule to persist
 +
 +  sudo firewall-cmd --add-service=x
 +
 +  sudo firewall-cmd --remove-service=x
 +
 +==== Add/Remove Port ====
 +
 +  * Add ''--permanent'' as-needed to allow the rule to persist
 +  * Change ''tcp'' to ''udp'' as-needed
 +
 +  sudo firewall-cmd --add-port=x/tcp
 +
 +  sudo firewall-cmd --remove-port=x/tcp
  
 ====== Privacy ====== ====== Privacy ======
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 ===== Create 7z Password Archive ===== ===== Create 7z Password Archive =====
  
-  * Change ''x'' in ''x.7z'' to the desired archive name +  * Change ''7ZIPNAME'' in ''7ZIPNAME.7z'' to the desired archive name 
-  * Change ''CHANGEME'' in ''-pCHANGEME'' to the desired password+  * Change ''PASS'' in ''-pPASS'' to the desired password 
 +  * Change ''x'' to the file or folder to add to the archive 
 + 
 +  7za a '7ZIPNAME.7z' -p'PASS' 'x'
  
-  7za a 'x.7z' -p'CHANGEME'+  7za a 'x.7z' -p'x' 'x'
/var/www/wiki/data/pages/distros/opensuse_tumbleweed_server.txt · Last modified: 2024/01/02 09:45 by Sean Rhone