www.digitalpains.net » Linux http://www.digitalpains.net Mon, 28 Feb 2011 11:57:32 +0000 en hourly 1 http://wordpress.org/?v=3.2.1
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How can I see on my linux box if Multicasting is enabled for my network interface? http://www.digitalpains.net/linux/how-can-i-see-on-my-linux-box-if-multicasting-is-enabled-for-my-network-interface http://www.digitalpains.net/linux/how-can-i-see-on-my-linux-box-if-multicasting-is-enabled-for-my-network-interface#comments Mon, 28 Feb 2011 11:57:32 +0000 ali.sogukpinar http://www.digitalpains.net/?p=647 guidelinesaboutresearchmarketingUsing ifconfig command you see if multicasting is enabled for your network interface or not. [ali@lab ~]$ /sbin/ifconfig wlan0 wlan0     Link encap:Ethernet  HWaddr 00:24:D7:38:D5:7C inet addr:172.30.59.189  Bcast:172.30.59.255  Mask:255.255.255.0 inet6 addr: fe80::224:d7ff:fe38:d57c/64 Scope:Link UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 RX packets:761458 errors:0 dropped:0 overruns:0 frame:0 TX packets:282314 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:334033669 (318.5 [...] Related posts:
  1. Ubuntu KVM Virtualization Host: Networking
  2. KVM And Bridge Network Definition On Ubuntu
  3. Disabling the respons to ICMP ECHO requests
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 udevb[2191]: add_to_rules: unknown key ‘ATTRS{idProduct}’ http://www.digitalpains.net/linux/udevb2191-add_to_rules-unknown-key-attrsidproduct http://www.digitalpains.net/linux/udevb2191-add_to_rules-unknown-key-attrsidproduct#comments Thu, 23 Dec 2010 21:14:29 +0000 ali.sogukpinar http://www.digitalpains.net/?p=623 noticeinternationalprofile
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If you are getting following error messages during the boot,  one of your udev rules are using the ATTRS instead of SYSFS. grep ATTRS /etc/udev/rules.d/* Changing all occurrence of ATTRS with SYSFS will fix the problem. %s/ATTRS/SYSFS/g On the other hand this is quite a irony. Fedora 13 will give you a warning error stating [...] Related posts:
  1. Cleaning up your system and removing old kernels.
  2. Keeping the old kernel as default after a kernel upgrade
  3. Installing VMWare Tools for ESXi Server on a RHEL 5 / Centos 5 Guest
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Nginx server_names_hash_bucket_size problem http://www.digitalpains.net/linux/nginx-server_names_hash_bucket_size-problem http://www.digitalpains.net/linux/nginx-server_names_hash_bucket_size-problem#comments Mon, 03 May 2010 07:47:55 +0000 ali.sogukpinar http://www.digitalpains.net/?p=607 guidelinesaboutToday I defined a new site on my Nginx server. This new site I defined has a long domain name. When I tried to restart the Nginx I got the following error message. Restarting nginx: 2010/05/03 09:25:08 [emerg] 4452#0: could not build the server_names_hash, you should increase server_names_hash_bucket_size: 32 nginx. If you also receive this [...] Related posts:
  1. Getting started with Nginx
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Ubuntu avahi-daemon creates problem resolving FQDNs ending with .local http://www.digitalpains.net/linux/ubuntu-avahi-daemon-creates-problem-with-resolving-local-domains http://www.digitalpains.net/linux/ubuntu-avahi-daemon-creates-problem-with-resolving-local-domains#comments Tue, 09 Feb 2010 05:22:50 +0000 ali.sogukpinar http://www.digitalpains.net/?p=584 researchmarketing
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noticeinternationalcopyrightI have started to use .local dns extension for my local network. After changing my complete network configuration I realized that some of my Ubuntu machines can resolve the FQDNs ending with .local (Ex: testhost.digitalpains.local ) correctly. ali@advance17:/home/ali$ ping testhost.digitalpains.local ping: unknown host testhost.digitalpains.local   ali@advance17:/home/ali$ ping testhost PING testhost.feasiblesolutions.local (192.168.7.2) 56(84) bytes of data. [...] Related posts:
  1. Disabling the respons to ICMP ECHO requests
  2. Ubuntu KVM Virtualization Host: Networking
  3. How To Disable IPv6 In Ubuntu 9.10 Karmic Koala
]]> http://www.digitalpains.net/linux/ubuntu-avahi-daemon-creates-problem-with-resolving-local-domains/feed 0 profile Automatic Security Updates on Ubuntu. http://www.digitalpains.net/twitter/automatic-security-updates-on-ubuntu http://www.digitalpains.net/twitter/automatic-security-updates-on-ubuntu#comments Fri, 29 Jan 2010 07:17:30 +0000 ali.sogukpinar http://www.digitalpains.net/?p=469
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guidelinesaboutThere are different options for automatically updating your server. At this article we will use the unattended-upgrades package. We will start with installing the unattended-upgrades package. kok@fhome:~$ sudo apt-get install unattended-upgrades After installing the unattended-upgrades package we need to add  the text below to the  /etc/apt/apt.conf.d/10periodic file. APT::Periodic::Update-Package-Lists “1″; APT::Periodic::Download-Upgradeable-Packages “1″; APT::Periodic::AutocleanInterval “5″; APT::Periodic::Unattended-Upgrade “1″; [...] Related posts:
  1. How can I upgrade my Ubuntu Server to Karmic?
  2. Ideal Virtualization Solution using Ubuntu
  3. Improving Apache Webserver Security with ServerTokens directive
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Configuring Yum To Work With Proxy Server http://www.digitalpains.net/twitter/configuring-yum-to-work-with-proxy-server http://www.digitalpains.net/twitter/configuring-yum-to-work-with-proxy-server#comments Sat, 23 Jan 2010 10:29:11 +0000 ali.sogukpinar http://www.digitalpains.net/?p=466 researchmarketing
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noticeinternationalcopyrightMost of the  production servers  has limited connectivity to the Internet. If they have any connectivity then probably it  will be through a forward proxy server. If your server is behind the proxy server, then you need to provide proxy server details in /etc/yum.conf.. The proxy setting must specify the proxy server as a complete [...] Related posts:
  1. Configuring an additional Yum repository.
  2. Changing SSH port of server. Simple yet effective security measure.
  3. Ubuntu Repository Server Appliance using vmbuilder
]]> http://www.digitalpains.net/twitter/configuring-yum-to-work-with-proxy-server/feed 0 profile Installing Ruby On Rails on Ubuntu http://www.digitalpains.net/programming/rails/installing-ruby-on-rails-on-ubuntu http://www.digitalpains.net/programming/rails/installing-ruby-on-rails-on-ubuntu#comments Thu, 21 Jan 2010 08:41:42 +0000 ali.sogukpinar http://www.digitalpains.net/?p=473
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guidelinesaboutRuby on Rails distributed with GEM packaging system. If you are installing Rails on Ubuntu probably you will end up using Ubuntu packaging system and GEM in combination. For a proper installation you need to do series of actions. A friend of mine, Umur Ozkul, has written an article for Rails Installation. It is written [...] Related posts:
  1. Ruby on Rails Internationalization
  2. Problem with installing mysql gem.
  3. Installing Ubuntu KVM Virtualization Host
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SMTP Reply Codes http://www.digitalpains.net/linux/mail-server/smtp-reply-codes http://www.digitalpains.net/linux/mail-server/smtp-reply-codes#comments Tue, 19 Jan 2010 19:53:52 +0000 ali.sogukpinar http://www.digitalpains.net/?p=470 researchmarketing
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noticeinternationalcopyrightSMTP Reply Codes Code Meaning 200 (nonstandard success response, see rfc876) 211 System status, or system help reply 214 Help message 220 <domain> Service ready 221 <domain> Service closing transmission channel 250 Requested mail action okay, completed 251 User not local; will forward to <forward-path> 354 Start mail input; end with <CRLF>.<CRLF> 421 <domain> Service [...] Related posts:
  1. A Mock SMTP server for rails developers
  2. HTTP Status Codes
  3. Enabling the Message Submission on a Linux serve running Plesk
]]> http://www.digitalpains.net/linux/mail-server/smtp-reply-codes/feed 0 profile Cleaning up your system and removing old kernels. http://www.digitalpains.net/linux/cleaning-up-your-system-and-removing-old-kernels http://www.digitalpains.net/linux/cleaning-up-your-system-and-removing-old-kernels#comments Wed, 13 Jan 2010 06:46:27 +0000 ali.sogukpinar http://www.digitalpains.net/?p=394
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guidelinesaboutWith every new kernel update, you receive another boot loader menu item. It will also eat up space from your /boot partition. If you don’t want your /boot partition to be filled up, then you need to remove some of the old kernels. How do we do it? First let’s get the list of kernels [...] Related posts:
  1. Keeping the old kernel as default after a kernel upgrade
  2. mount: could not find any free loop device
  3. VirtualBox can’t operate in VMX root mode. -4011 (VERR_VMX_IN_VMX_ROOT_MODE)
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HTTP Status Codes http://www.digitalpains.net/twitter/http-status-codes http://www.digitalpains.net/twitter/http-status-codes#comments Tue, 12 Jan 2010 07:05:00 +0000 ali.sogukpinar http://www.digitalpains.net/?p=458 http://www.digitalpains.net/twitter/http-status-codes/feed 0 marketing