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Diktat Sistem Operasi
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Diktat Kuliah Jaringan Komputer
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Success factor for setting up centralized logging
The checklist of questions below will help ensure your centralized logging deployment is set up for success from the very beginning. 1. Have you implemented Network Time Protocol? To truly enjoy the benefits of centralized logging, such as trending, correlation, and event troubleshooting, all your network elements must be running off a synchronized time source.…
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ORA-01033: ORACLE initialization or shutdown in progress
Solution 1: if you have a backup of the database + archive logs: restore and recover without backup, the tablespace became useless: drop it while in mount mode, then open the database i.e. sqlplus /nolog SQL> connect / as sysdba SQL> shutdown abort SQL> startup nomount SQL> alter database mount; SQL> alter database open; your…
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node disjoint, link disjoint, non disjoint
node disjoint Routes SXD, SYD, and SZD in have no links or nodes in common and are therefore node disjoint. link disjoint Routes SXYZD and SYD in (b) have node Y in common and are therefore only link disjoint. non-disjoint Routes SXD and SXYD in (c) have node X and link SX in common and are therefore non-disjoint.…
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create raid0 in ubuntu
mdadm –create /dev/md0 –chunk=4 –level=0 –raid-devices=2 /dev/sda1 /dev/sdb1 😀 😀
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Freeradius rlm_sql_oracle
dikarenakan ada bug di RADIUS-LDAP, maka mau tak mau backend untuk menyimpan data user beserta atribute nya harus di pindah ke mysql/oracle. menjadi tantangan tersendiri saat freeradius menggunakan database oracle 😀 :D. setelah beberapa hari bergelut dengan freeradius+oracle & migrasi IP Transit, akhirnya jalan juga radius nya :D. freeradius yang saya gunakan menggunakan freeradius-server-2.2.5. pastikan…
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delete solr data index
curl http://localhost:8080/solr/update -H “Content-type: text/xml” –data-binary ‘*:*’ curl http://localhost:8080/solr/update -H “Content-type: text/xml” –data-binary ” curl http://localhost:8080/solr/update -H “Content-type: text/xml” –data-binary ”
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SysAdmin Funny & Horror Stories
when you see your squid log and you found out your clients accessing xvideos.com 😀 😀 you say you forgot your passwords issuing ‘reboot’ in wrong window when you managed all servers by hand most of the time sysadmin reaction Failed last backup taken from puppetlabs.com