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| Programming | 30065 Articles |
| Unix & Linux | 27253 Articles |
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Topic: Programming
Recent Tags
absolute-path abstract-class ajax amazon-elastic-beanstalk amazon-route53 amazon-s3 amazon-web-services arguments arrays awk aws-sdk bash bitbucket-pipelines c# c++ cat classpath cloud cluster-computing colors compiler-errors context-info credentials curl dataframe distribution docker driver eloquent environment-variables etcd filesystems fortran function gcc getline gfortran gnu-parallel gnu-screen google-chrome-devtools grep gssapi gzip helper higher-kinded-types html-post ikvm indexing interface io java javascript json kerberos laravel laravel-5 libcurl linker linux list macos magento-1.9 mern mesosphere meteor migration mingw module multiprocessing mv naming-conventions node.js numa numpy object ocr openstack pandas parallel-processing parallels performance perl php pip pipe posix postgresql postgresql-performance profiling pry ps python python-2.7 python-3.x python-tesseract pythonpath ractivejs regex resque rocks ruby-on-rails rvalue samba scp sed setsid setupapi setuptools shared-memory shell sign sparse-file split spn spring sql sql-server ssh stat static-linking symlink syntax tee terminal testing triggers tsql unicode unix utf-8 virtual-machine visual-studio-2008 visual-studio-code window-functions windows xargs zend-serverRecent Articles
| How to properly create and run concurrent tasks using python's asyncio module? | |
| List Git aliases | |
| Get timestamps with the same time_zone from all nodes in distributed system with Python | |
| Why does argparse not accept "--" as argument? | |
| For-loop over glob returns single string instead of list | |
| Docker Build CLI Doesn’t update the code (TS, node) | |
| Select matrix rows that are permutations of a given vector | |
| Concatenate every two columns in dataframe | |
| Fastest way to take the average of two signed integers in x86 assembly? | |
| How to make dynamic bit width integers in C? | |
| print the commands to delete node_modules folders recursively in a bash text file | |
| Format Specifiers in C and their Roles? | |
| Extract names of second [given] level of nested list in R | |
| Copy value from one column to the next given a condition | |
| How to configure git push to automatically set upstream without -u? | |
Topic: Unix & Linux
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acpi administration aix amazon-ec2 apt arch-linux authentication autocomplete awk background-process banner bash bash-expansion bashrc centos chown colors command command-history command-line command-substitution compiling configuration console cron curl debian dependencies docker domain encryption environment-variables exec fedora ffmpeg fifo file-descriptors filenames fork gentoo gnome-terminal gnu-parallel grep gui here-document hhvm i18n icons init.d io-redirection iw jobs join json kde kernel kill ksh kubuntu lfs licenses linux linux-mint locale locate logout logs make memory motd nouveau open-files opensuse permissions pipe process prompt python readline readlink reboot regular-expression remote-management replace root root-filesystem scientific-linux scripting security sed shell shell-script signals special-characters ssh ssh-tunneling stdin su sudo symlink syntax systemd systemd-journald systemd-unit tar tee terminal terminology trap tty ubuntu umask upgrade variable veracrypt vnc xv6 yum zip zsh zypperRecent Articles
| Bash, use case statement to check if the word is in the array | |
| Double fork() - why? | |
| Start 100 process at a time in bash script | |
| Are VirtualBox guest additions host-independent? | |
| Can a Linux Swap Partition Be Too Big? | |
| How to get specific fields of JSON objects for which another field is true | |
| What is involved in a WSL "distribution"? | |
| Is it possible to pass a bash array as a parameter to a function? | |
| mv: A and B are the same file | |
| How to generate keys after creating user with adduser --disabled-password | |
| bash + monitor disk space usage and execute script if used space reached the threshold | |
| How can I loop this command in a bash script until the repsonse contains the string "connection successful" | |
| Perl: speed of s/// with variable in replacement | |
| git diff: ignore comments | |
| Trying to find complete string values from one file based on another file using AWK | |
Topic: System Administration & Network Administration
Recent Tags
active-directory amazon-ec2 apache-2.2 apache-2.4 apache-mesos apt aptitude arch-linux azure backend backuppc bash busybox byobu centos centos6 cgroup chroot cloud-computing cluster command-line-interface connection cpu-usage cygwin debian desktop domu dpkg dsc eclipse email environment-variables epel file-permissions forwarding freebsd ftp git gitlab gnu-screen gridengine group-policy grub grub2 hook hyper-v ifconfig init.d internet ipsec jboss jenkins job-control kde kvm-virtualization lamp ldap less linux lxc masquerade max-file-descriptors memory mikrotik mpm-prefork mysql nis nobody node.js ntfs openldap openswan openvpn pam-ldap partition perforce permissions php-fpm port port-forwarding postgresql powershell ps qemu qnap rc.local rocky-linux rsync rvm scp security sftp sles ssh ssh-keygen ssh-keys ssh-tunnel ssl startup-scripts su sudo tap tc telnet terminal-server tun ubuntu ubuntu-16.04 ubuntu-20.04 ulimit umask unix-shell user-management user-permissions virtual-machines vpn vpn-client vps web-hosting web-server windows windows-server-2003 windows-server-2008 windows-server-2008-r2 write yp zabbix zimbraRecent Articles
| Pod is stuck in PodInitializing status when an initContainer is OOMKilled | |
| Transferring PDCEmulator FSMO role from Windows Server 2012R2 to 2022 | |
| Gmail does not accept mail from a new VPS server with PTR setup | |
| Domain Controller DNS alias | |
| (Windows) how to launch event viewer GUI console when dealing with huge log files? | |
| Odd process appearing about every 18-20 minutes that runs 'apt-get --just-print dist-upgrade' | |
| How to enable ssh for supporters with intelligent key management? | |
| Support staff can reset some User passwords but not all? | |
| ExecStart has a '-' prefix but the unit is still failed | |
| Does the email size limit include the size of the body? | |
| Should mail servers avoid sharing /64 ipv6 with others for reputation? | |
| ISC DHCP/DDNS setup: Static entries for non-dhcp clients | |
| ZFS and SAN: issue with data scrubbing | |
| Why SSH still works after applying SNAT and DNAT rules to forward ip (on the SSH server)? | |
| postfix loops back to myself email issue (was working before apt upgrade Ubuntu) | |
Topic: Information Security
Recent Tags
access-control apache api appsec asymmetric attack-vector attacks authentication backdoor banks boot brute-force burp-suite c++ cdn certificate-authority certificates challenge-response chrome cloud-storage cryptography csrf ctf denial-of-service dhcp digital-signature directory-traversal e-commerce email email-spoofing encoding encryption exploit exploit-development file-access file-system firefox firewalls forensics freebsd gaming gmail gnupg google gpg4win gssapi hash hashicorp-vault html infection-vector injection integrity iphone ipsec kali-linux kerberos keyloggers kleopatra known-vulnerabilities linux logging malware md5 memory metasploit mod-security mongodb mysql network node.js objective-c openpgp openssl operating-systems password-management passwords pci-dss pem php phpmyadmin privacy process protection public-key remote-server reverse-engineering router rsa sha shellshock silverlight snooping sql-injection tamper-resistance tcpdump threats tls tls-downgrade token tor totp trust uac ubuntu url user-names virus vpn vulnerability web-application web-browser web-of-trust web-scanners web-service whitelist wifi windows windows-10 wireless wpa2 xssRecent Articles
| Is it bad practice to have a 'super admin' - so they effectively bypass security checks in your system? | |
| Do CloudFront edges talk to custom origins over open (non-AWS) networks? | |
| Why did WebAuthn beat PAKEs as the preferred password replacement? | |
| What happens to malicious traffic in a scrubbing center during a DDoS attack? | |
| What is the name of this concept involving hashes? | |
| Can DMARC's SPF alignment be spoofed? | |
| ThinkShield secure wipe - SSD does it forbid data recovering? | |
| Content-Type and Code Execution | |
| SQLMAP setting parameter | |
| What is the purpose of the critical flag being enabled (128) on a CAA IODEF record? | |
| Can static IP address be used as a component of MFA? | |
| Why does anyone not use Let's Encrypt? | |
| How do I keep Python Sockets secure for Multiplayer Games? | |
| Any security concerns when importing self-signed certificate to Trusted Root certification Authorities store? | |
| Malware file path | |
Topic: Cryptography
Recent Tags
advantage aes aes-gcm argon2 attack authenticated-encryption authentication bcrypt block-cipher blocksize brute-force-attack cbc commitments computational-complexity-theory cryptanalysis cryptocurrency ctr database decryption deterministic-encryption diffie-hellman discrete-logarithm dsa ecb ecies elgamal-encryption elliptic-curves encoding encryption enigma entropy error-propagation feistel-network file-encryption finite-field function-evaluation gcm group-theory hard-core-predicate hash hash-signature homomorphic-encryption implementation information-theory initialization-vector key-derivation key-exchange keys lfsr lightweight mac matrix-multiplication meet-in-the-middle-attack modes-of-operation modular-arithmetic multiple-encryption negligible nist nonce notation nsa ntru oaep oblivious-transfer ofb one-time-pad one-way-function openssl padding padding-oracle pairings password-hashing passwords pbkdf-2 permutation pgp pki poly1305 post-quantum-cryptography probability protocol-design pseudo-random-function pseudo-random-generator pseudo-random-permutation public-key puf random-number-generator randomness replay-attack rijndael ring-lwe rsa s2k secp256k1 security-definition semantic-security sha-2 sha-256 signature simulation software-obfuscation stream-cipher terminology timing-attack tls tokenization trapdoor verifiability verifiable-random-function voting x25519 xor zero-knowledge-proofsRecent Articles
| Should we really rely on "Cryptographically Secure Pseudo-Random Number Generators" (CSPRNG) alone to guarantee secure random output? | |
| Solving system of equation based on RSA | |
| Base64 or hex to attach auth tokens to URL? | |
| How much security is gained from hiding the nonce? | |
| (In)security of multiplicative blinding / one-time-pad in a commutative ring | |
| Is there some restrictions on values of p,q,d,e etc in RSA algorithm while trying to encrypt English Ciphertext? | |
| How to prevent the solution of a discrete logarithm problem from being found in a collision way by accident | |
| NIST example shows extra hexadecimal characters in Block Contents of SHA512-256 | |
| NIST example shows extra hexadecimal characters in Block Contents of SHA512-256 | |
| Is constant-time compare really required for AEAD ciphers? | |
| Is constant-time compare really required for AEAD ciphers? | |
| How to encrypt data which never leave the client but can't be decrypted without the server? | |
| Commutable and Composable Asymmetric Encryption/Decryption | |
| Is there any way to (irrevocably) *transfer* a private key to another person? | |
| Is there any way to (irrevocably) *transfer* a private key to another person? | |
Topic: Database Administration
Recent Tags
aggregate alter-table application-design array authentication autovacuum availability-groups azure backup bulk-insert business-intelligence clob clustered-index columnstore composite-types count cte cursors data-warehouse database-design database-recommendation datatypes date-format ddl deadlock dependencies deployment dml dmv docker dump dynamic-sql erd failover fields functions greatest-n-per-group group-by high-availability identity index index-tuning information-schema inheritance insert java join json limits localization mariadb mariadb-10.3 memory mongodb ms-access mysql mysql-5.6 mysqldump naming-convention neo4j normalization operator oracle order-by percona performance permissions pg-dump pg-restore plpgsql plsql polymorphic-associations postgresql postgresql-9.3 postgresql-9.4 postgresql-9.6 postgresql-performance primary-key psql query-performance rdbms relational-theory replication role schema security select set-returning-functions snapshot-isolation spatial sql-server sql-server-2005 sql-server-2008 sql-server-2008-r2 sql-server-2012 sql-server-2014 sql-server-2016 sqlite ssd ssis ssl ssms stored-procedures system-databases t-sql tablespaces temporary-tables terminology timezone trigger ubuntu unique-constraint update vldb waits xmlRecent Articles
| Use square brackets on extended events filter | |
| What ports to open for sql server behind secure domain firewall | |
| Poorly performing stored procedure using cached data while testing | |
| Logical reads and LOB logical reads | |
| Restore over dns alias fails with Operating system error 1326(The user name or password is incorrect.) | |
| SQL: finding unique multi-column value triplet matching multiple rows? | |
| Which versions of DataStax Enterprise have the fix for CVE-2020-13946? | |
| Optimizing geolocation query in Postgres with earth_box and earth_distance | |
| Incorrect Result When Doing String Concatenation With ORDER BY | |
| Boolean flag in fact table | |
| What affects log_send_rate in Normal or Distributed AG other than OS resources? | |
| How to get the "best of both worlds" with natural and surrogate keys? And could DBMSs be better? | |
| Oracle 19 - RMAN can't connect to database | |
| Distinguish between "take-away orders" and "orders for a table" | |
| Temporarily disable SELECT for one table (during an update) | |
Topic: Software Engineering
Recent Tags
.net ado.net algorithms api-design architecture array asp.net asp.net-mvc benchmarking big-o binding c# class clean-code code-complete code-quality code-smell collections complexity component composition computer-architecture constructors copy-protection cpu cqrs cron css3 data data-structures database declarations decompile decorator definition dependency-inversion design design-patterns desktop-application development-process domain-driven-design domain-model domain-specific-languages efficiency email error-handling event-programming event-sourcing export f# file-storage files formal-methods functional-programming garbage-collection git inheritance interfaces internet inversion-of-control io ios ipad java javascript json jvm laravel libraries linked-list locks merging methods microservices modeling modularization multiple-inheritance mvc mysql oauth2 object-oriented object-oriented-design openid performance php plugin-architecture plugins pointers polymorphism problem-solving procedural programming-practices project-management read-model recursion regular-expressions requirements ruby scala scheduling scope server single-responsibility sockets software-distribution solid source-code sql sql-server state stored-procedures technical-debt third-party-libraries transaction type-casting type-conversion version-control versioning wcf web web-api web-applications web-development web-services wpf xmlRecent Articles
| Should test resource files be stored inside the Java class source directories? | |
| How can I efficiently diff a CSV file against a database? | |
| How do I handle malformed compressed input data, which crashes external library? | |
| What is the significance of reaching major version 1.0.0? | |
| Does Garbage Collection Scan The Entire Memory? | |
| What Semantic Version increment to use for a filename change? | |
| Error or not error? | |
| How much time should you spend planning a commit before writing code? | |
| Does it always take the same amount of time to retrieve the same thing from collection? | |
| Multidimensional vs nested arrays | |
| Designing an API for international markets | |
| Referencing transient class attributes | |
| When is it practical to design in advance of refactoring? | |
| Why does GNU AS use different characters for single-line comments depending on the architecture? | |
| What kind of queue should I use for processing large volume of data? | |
Topic: Theoretical Computer Science
Recent Tags
ac0 agda algebraic-complexity approximation-algorithms ar.hardware-architecture average-case-complexity big-picture binary-decision-diagrams bipartite-graphs boolean-formulas boolean-functions calculus-of-constructions cc.complexity-theory circuit-complexity circuit-families clique co.combinatorics coding-theory combinatorics communication-complexity complexity complexity-classes computability context-free continuations convex-hull counting-complexity cr.crypto-security curry-howard data-streams dc.parallel-comp dependent-type derandomization directed-acyclic-graph ds.algorithms ds.data-structures dynamic-algorithms encoding epsilon-nets examples factoring finite-fields fixed-parameter-tractable fl.formal-languages formal-methods graph-algorithms graph-classes graph-isomorphism graph-theory high-dimensional-geometry implementation interactive-proofs it.information-theory lambda-calculus linear-algebra linear-temporal-logic lo.logic lower-bounds machine-learning matching matrices mu-calculus na.numerical-analysis ni.networking-internet nondeterminism normalization np np-complete np-hardness optimization parameterized-complexity parsing pcp permanent pl.programming-languages polynomial-hierarchy polynomial-time polynomials polytope pr.probability promise-problems proof-assistants property-testing pseudorandom-generators qma quantum-computing random-oracles randomized-algorithms randomness reductions reference-request sample-complexity sat search-problem separation soft-question sorting space-bounded sparse-matrix st.statistics streaming streaming-algorithms survey topology tree treewidth turing-machines type-inference type-systems type-theory typed-lambda-calculus undecidability unique-solution vc-dimensionRecent Articles
| Dependent type theory and definitions of cumulativity | |
| Expected number of random comparisons needed to sort a list | |
| Defining normalization with respect to judgmental equality instead of reduction | |
| Randomized communication complexity of or-of-equalities | |
| Quadratic lower bound | |
| Hardness of a class of quadratics | |
| Hardness of a class of quadratics | |
| Best known algorithm for NEXP-complete problem | |
| Similarities and differences between Pie and popular languages with dependent types | |
| Is there FPT or XP algorithms knowm for Shortest Steiner cycle and $(a,b)$-Steiner path problem | |
| Question about algorithm for enumerating minimal AB-separators | |
| Sample complexity lower bound to learn the mode (the value with the highest probability) of a distribution with finite support | |
| What are the application of Scott-Topology in theoretical computer science? | |
| Are there survey papers in theoretical computer science? | |
| Complexity of the Complete (3,2) SAT problem? | |
Topic: General Computing
Recent Tags
.bash-profile 64-bit acl address-bar append autohotkey automation awk backup bash bashrc batch beyondcompare boot browser browser-tabs browsing centos certificate compact-disc cookies cron curl cygwin dbus debian desktop dictionary email export fdisk file-management firefox gnome gnu-screen google-chrome google-search head infinite-loop internet-explorer jira kernel key-binding keyboard linux logging mac macfuse macos metadata microsoft-outlook-2007 microsoft-word mouseless msysgit ntfs opensuse opera-10 pdf pentadactyl perl permissions pki plist port-forwarding powershell priority proxy putty python redhat-enterprise-linux redirection rubygems safari script scrolling search-engines security sed shell shell-script socks5 sorting split-window ssh sshd ssl ssl-certificate strace sudo tabbed-browsing telnet terminal text-manipulation thumbnails tmux trusted-root-ca tunnel ubuntu udev uniq upstart usb-flash-drive usb-storage vim virtual-host virtual-machine vnc vpn wamp wayland windows windows-10 windows-7 windows-backup windows-server-2012 windows-subsystem-for-linux windows-vista word-processing x11-forwarding xampp xinput xorg xubuntu youtubeRecent Articles
| Excel - Lookup exact match in one column and exact or next higher match in another column | |
| Where should DNS and DHCP servers be located? | |
| How to curl case-insensitive | |
| Debian/testing Linux on an encrypted LVM - filesystem intensive operations cause system to freeze and crash system-journald service | |
| Support of the \\?\UNC\server\share syntax in Windows | |
| Find and replace in Notepad++: How to insert above line with same amount of indents? | |
| Why is the Actual RAM Size Less Than It States? | |
| Windows: How to make cygwin bash.exe to take precedence over wsl in command line? | |
| Object reached heap limit - debugging a Javascript SIGILL error on Chrome? | |
| IIS How can I produce a continuous log stream? | |
| What is meant to be plugged into the USB connector labelled "Touch" on thjs screen? | |
| IP payload compression with xfrm | |
| Dual Boot between Win 7 and Win 11 | |
| What is ctrl-; doing in Gnome Terminal and Emacs? | |
| How to securely erase an NVMe SSD that won't boot? | |