-
listing enabled swaps
sudo swapon -s
-
check available space
df
-
create swap file (the following will create 1GB swap, modify count if needed)
sudo dd if=/dev/zero of=/swapfile bs=1024 count=1024k
-
prepare the swap file by creating a linux swap area
sudo mkswap /swapfile
-
activate the swap file
sudo swapon /swapfile
-
ensure that the swap is permanent by adding it to the fstab file
sudo nano /etc/fstab
paste:
/swapfile none swap sw 0 0
-
set swappiness in the file to 10 so swap act as an emergency buffer
echo 10 | sudo tee /proc/sys/vm/swappiness echo vm.swappiness = 10 | sudo tee -a /etc/sysctl.conf
-
prevent the file from being world-readable
sudo chown root:root /swapfile sudo chmod 0600 /swapfile
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Rabu, 02 Juli 2014
Creating swapfile
source: https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-12-04
Jumat, 23 Mei 2014
Fixing wireless connection problem in lubuntu
boot into recovery root command line, type
mount -o remount,rw /
to allow write access, install wicd
apt-get install wicd
and reboot
Jumat, 11 April 2014
Rails (Rack::Utils) HTTP Status Codes and Symbols
ruby -e 'require "rack/utils"; puts Rack::Utils::SYMBOL_TO_STATUS_CODE.map{|s,c| "|" + c.to_s.center(5) + "|" + s.inspect.center(60) + "|" + Rack::Utils::HTTP_STATUS_CODES[c].to_s.center(60) + "|"}.join("\n")'
| 100 | :continue | Continue | | 101 | :switching_protocols | Switching Protocols | | 102 | :processing | Processing | | 200 | :ok | OK | | 201 | :created | Created | | 202 | :accepted | Accepted | | 203 | :non_authoritative_information | Non-Authoritative Information | | 204 | :no_content | No Content | | 205 | :reset_content | Reset Content | | 206 | :partial_content | Partial Content | | 207 | :multi_status | Multi-Status | | 208 | :already_reported | Already Reported | | 226 | :im_used | IM Used | | 300 | :multiple_choices | Multiple Choices | | 301 | :moved_permanently | Moved Permanently | | 302 | :found | Found | | 303 | :see_other | See Other | | 304 | :not_modified | Not Modified | | 305 | :use_proxy | Use Proxy | | 306 | :reserved | Reserved | | 307 | :temporary_redirect | Temporary Redirect | | 308 | :permanent_redirect | Permanent Redirect | | 400 | :bad_request | Bad Request | | 401 | :unauthorized | Unauthorized | | 402 | :payment_required | Payment Required | | 403 | :forbidden | Forbidden | | 404 | :not_found | Not Found | | 405 | :method_not_allowed | Method Not Allowed | | 406 | :not_acceptable | Not Acceptable | | 407 | :proxy_authentication_required | Proxy Authentication Required | | 408 | :request_timeout | Request Timeout | | 409 | :conflict | Conflict | | 410 | :gone | Gone | | 411 | :length_required | Length Required | | 412 | :precondition_failed | Precondition Failed | | 413 | :request_entity_too_large | Request Entity Too Large | | 414 | :request_uri_too_long | Request-URI Too Long | | 415 | :unsupported_media_type | Unsupported Media Type | | 416 | :requested_range_not_satisfiable | Requested Range Not Satisfiable | | 417 | :expectation_failed | Expectation Failed | | 422 | :unprocessable_entity | Unprocessable Entity | | 423 | :locked | Locked | | 424 | :failed_dependency | Failed Dependency | | 425 | :reserved_for_webdav_advanced_collections_expired_proposal | Reserved for WebDAV advanced collections expired proposal | | 426 | :upgrade_required | Upgrade Required | | 509 | :unassigned | Unassigned | | 428 | :precondition_required | Precondition Required | | 429 | :too_many_requests | Too Many Requests | | 431 | :request_header_fields_too_large | Request Header Fields Too Large | | 500 | :internal_server_error | Internal Server Error | | 501 | :not_implemented | Not Implemented | | 502 | :bad_gateway | Bad Gateway | | 503 | :service_unavailable | Service Unavailable | | 504 | :gateway_timeout | Gateway Timeout | | 505 | :http_version_not_supported | HTTP Version Not Supported | | 506 | :"variant_also_negotiates_(experimental)" | Variant Also Negotiates (Experimental) | | 507 | :insufficient_storage | Insufficient Storage | | 508 | :loop_detected | Loop Detected | | 510 | :not_extended | Not Extended | | 511 | :network_authentication_required | Network Authentication Required |
Rabu, 02 April 2014
uninstall all gems linux
curl -Ls https://gist.github.com/nixpulvis/5042764/raw/7daa611e707f1884eb701551464bfd1dc9e7a953/gem-reset | ruby
Rabu, 12 Februari 2014
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