troubleshooting – Achmad Mardiansyah's Journal

Aug272012 by Achmad MardiansyahNo Comments

Troubleshoot: slow squid, All redirector processes are busy

Suatu hari ketika troubleshooting jaringan di kantor, saya mendapat symptoms berikut: user merasa lambat ketika browsing saya mendapat warning pada cache.log squid: 2012/04/26 08:32:38| WARNING: All redirector processes are busy. 2012/04/26 08:32:38| WARNING: 5 pending requests queued 2012/04/26 08:37:37| WARNING: All redirector processes are busy. 2012/04/26 08:37:37| WARNING: 5 pending requests queued 2012/04/26 08:39:24| WARNING: All redirector processes are busy. 2012/04/26 08:39:24| WARNING: 5 pending requests queued 2012/04/26 08:48:50| WARNING: redirector #5 (FD 15) exited 2012/04/26 08:48:50| WARNING: redirector #1 (FD 7) exited 2012/04/26 08:48:50| WARNING: redirector #4 (FD 13) exited 2012/04/26 08:48:50| WARNING: redirector #2 (FD 9) exited 2012/04/26 08:48:50| ...

Nov182011 by Achmad Mardiansyah2 Comments

Troubleshoot: perl warning: Setting locale failed

*NIX-world

suatu hari ketika sedang konfigurasi ubuntu, ada error yang menyebalkan dari paket locales: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LC_CTYPE = "en_US.UTF-8", LC_COLLATE = "en_US.UTF-8", LC_MESSAGES = "en_US.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). solusinya mudah export LANGUAGE=en_US.UTF-8 export LANG=en_US.UTF-8 export LC_ALL=en_US.UTF-8 locale-gen en_US.UTF-8 dpkg-reconfigure locales sumber: dari sini.

May152010 by Achmad Mardiansyah1 Comment

linux makes my laptop hang

*NIX-world, Technology

laptop specs: TOSHIBA M200, CPU: intel dualcore 1.8 GHz, RAM 2GB, Harddisk: 80GB symtomps: After login to the system, my laptop hangs after using it a while as it seen in the video. can't use any button at all. so i have to force the laptop to poweroff by pressing the on/off button. i've tried to - install: ubuntu server 8.04, ubuntu 9.10, lubuntu 10.4, archlinux, etc - setup grub configuration: acpi=off, noapic, nolapic - install other os: windows XP, opensolaris but all of them don't work any suggestions so that i use my laptop again? here's the video:

May22010 by Achmad Mardiansyah11 Comments

Apa itu ACPI, APIC, LAPIC, EDD=on

*NIX-world, Technology

Jika anda pernah install ubuntu / linux lainnya, biasanya pada saat instalasi ada pilihan untuk ACPI, APIC, LAPIC, edd=on. berikut ini penjelasannya: ACPI (Advanced Configuration and Power Interface) fungsi utama ACPI untuk mengatur power dan menjalankan feature khusus komputer. misal: kalo shutdown komputer langsung poweroff. jika tanpa ACPI, maka komputer seperti jaman purba yang harus ditekan tombol power untuk poweroff. bisa switching antara powerline mode dan battery mode bisa up/down volume dengan tombol yang ada di laptop (tidak semua pake ACPI loh) bisa mengatur brightness automatically bisa suspend, hibernate, resume OS bia mengaktifkan tombol tertentu yang ada di laptop. misal: tombol untuk membuka browser, email, bluetooth, locking dll seperti ini sa...

Jun52003 by Achmad MardiansyahNo Comments

Telnet sebagai alat bantu troubleshooting SMTP, POP3, HTTP, serta service lainnya

Technology, Telekomunikasi & networking

Ide tulisan ini muncul ketika saya sedang konfigurasi server mail & web. telnet memang sudah jarang dipakai karena menggunakan koneksi yang tidak dienkripsi. namun telnet juga mempunyai fungsi lain yang tidak kalah penting yaitu troubleshooting. untuk mengecek smtp (port 25), ngirim email via smtp: telnet <ip_address> 25 [tekan ENTER] EHLO domainanda.com [tekan ENTER] MAIL FROM: saya@domainanda.com [tekan ENTER] RCPT TO: kamu@yahoo.com [tekan ENTER] DATA [tekan ENTER] . [tekan ENTER] QUIT [tekan ENTER] ingat, email diatas tidak di encrypt untuk mengecek pop3 (port 110), check status pop3: telnet <ip_address> 110 [tekan ENTER] user <nama account email anda> [tekan ENTER] pass <password anda> [tekan ENTER] stat [tekan ENTER] quit [tekan ENTER]...