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1. Update etc config /etc/default/plexmediaserver # default script for Plex Media Server # the number of plugins that can run at the same time export PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS=6 # ulimit -s $PLEX_MEDIA_SERVER_MAX_STACK_SIZE export PLEX_MEDIA_SERVER_MAX_STACK_SIZE=3000 # where the
This web site has been down for more than a year and I have not been putting any time to maintain it and put it back online. These days I finally spent some time to make it happen. There is a new theme, new backbone using Ghost and I am
1. Generate a set of SSH key pair in your server You would need a public and private of SSH key, theoretically it can be generated in any computer as you like. The following is a sample to generate the key. ssh-keygen -t rsa -b 4096 -C "nicholas@example.
Given a set of items, each with a weight and a value, determine the number of each item to include in a collection so that the total weight is less than or equal to a given limit and the total value is as large as possible. Drawing graph int[] plot(
1. Come up with a recursive function 2. Memorize the intermediate results 3. Make it bottom up
Definition of Palindrome left-to-right, and right-to-left, and it’s the same. For examples: Abba A man, a plan, a canal - Panama! Solution You need 2 pointers, one at the beginning, another one in the end. Move them one by one towards the center and check if it's
A cipher suite specifies one algorithm for each of the following tasks: * Key exchange * Bulk encryption * Message authentication So you may see something like: PSK-AES-SHA256 Key exchange algorithms Key exchange algorithms protect information required to create shared keys. These algorithms are asymmetric (public key algorithms) and perform well for relatively
SSL is the predecessor to TLS * SSL 1.0 was never released to public * SSLv2 in 1995, deprecated in 2011 (link) * SSL v3 in 1996, deprecated in 2015 (link) * TLS 1.1 in 1999 * TLS 1.2 in 2008 * TLS 1.3 currently in draft (link) References * https://www.globalsign.
https://security.stackexchange.com/questions/9957/can-i-use-a-private-key-as-a-public-key-and-vice-versa
What is certificate A electronic document with the following info 1. Who issued the certificate 2. Who the certificate is issued to 3. Valid to date (expiry date) 4. Public key 5. Digital signature Hash value of the certificate, used private key to sign the key -> digital signature
It happens in all HTTPS connections. Certificate phase, chose cipher suite 1. Client send hello, with supported cipher/version all other information 2. Server send hello, with certificate, and done hello 3. Premaster key done Symetric key exchange using asymetric public key in certificate 1. Computer installed many CA 2.
Network Security
The seven Open Systems Interconnection layers * Layer 7: The application layer * Layer 6: The presentation layer * Layer 5: The session layer * Layer 4: The transport layer * Layer 3: The network layer * Layer 2: The data-link layer * Layer 1: The physical layer References https://searchnetworking.techtarget.com/definition/OSI
Network Computing
GoDaddy doesn't support DDNS out of the box. Luckily it provides APIs to control the DNS fields, so you can dynamically update it by yourself, with some tools. Create GoDaddy API keys Go to this page and generate a production key. https://developer.godaddy.com/keys Install tool
Network Computing
ffmpeg \ -user_agent "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/601.7.8 (KHTML, like Gecko) Version/9.1.3 Safari/537.86.7" \ -i https://url/file.m3u8 \ -c copy video.mkv
Android Dev
For years from google doc (ref): You should strictly avoid using enums on Android. Today, I checked the Google website, this message disappeared! And after i read this discussion, I think we should use enum more lol
Living In Japan
There are 2 options to set up mail forwarding in japan Option 1: Go to a nearby post office Option 2: You know Japanese and you have a working phone number
Unsorted
Install Nginx and MySQL sudo apt-get update sudo apt-get install nginx sudo apt-get install mysql-server mysql_secure_installation * https://docs.ghost.org/v1/docs/hosting#section-adding-swap-memory * https://nodejs.org/en/download/package-manager/#debian-and-ubuntu-based-linux-distributions * https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-16-04 * https://www.digitalocean.com/community/tutorials/how-to-install-mysql-on-ubuntu-16-04 * https://docs.ghost.
Living In Japan
And yes, you will have to mail them back the SIM card
Unsorted
Go to this web site: https://developer.amazon.com/public/solutions/platforms/android-fireos Now go to your Fire TV. Settings > About > Check For System Update
Unsorted
[http://nicholasworkshop.com/wp-content/uploads/2015/10/hello-world-aosp.pdf](http://nicholasworkshop.com/wp-content/uploads/2015/10/hello-world-aosp.pdf)
Algorithm
In the iterative way You can only do breathe first traversal in iterative way. Though you can still make it recursive by calling itself in each loop, but you will not benefit from it. It is similar to doing depth first traversal, instead you use a FIFO queue to store
Algorithm
There are 4 ways to do a depth first traversal, depends on how you would like to do it. Define Node static class Node { int value; Node left, right; } Depth First Recursive Traversal (Pre-order) static boolean depthFirstTraversal_preOrder(Node node) { if (node == null) return true; if (!visit(node)) return false;
Algorithm
Snapsack problem refers to the situation you want to find a combination of items that can fill up a container. Each items should be attached with a value, and there should be a target value that means a container is filled up. For example, a container has 25 spaces and