nsa whistleblower

Tags: text place set national command line standard LLD warning features2nd Chapter PS1 (environment variable)Variable: x+y=10 known x=11 y=?Environment variables: Features uppercase meaning (can be used in most places in the system meaning basically unchanged) system creation PS1 ===== martial arts cheats (sunflower treasure) Echo $PS 1 ===== book ps1= ' [\[emailprotected]\h \w]\$ ' ===== Write content "If you want to practice this work, you will be successful." 2.1 co

system, such as Root,user_u,system_u, where most local processes are part of the free (unconfined) processRole: Defines the file, process, and user's purpose: File: Object_r, process, and User: System_rType: Specifies the data type, the rule defines which process type to access which file target policy is based on type implementation, multi-service common: public_content_tSensitivity: the need to restrict access, hierarchical security levels defined by an organization, such as unclassified, Sec

Tags: Apply get image NSA add lag TAC Core representation1. What is the kernel stack for a process?In a kernel state (such as an application process executing a system call), the process runs with its own stack information (not the stack in the original user space), but instead uses the stack in the kernel space, which is the kernel stack of the process2. How is the kernel stack of the process described in the computer?The process in Linux uses the TA

Tags: file production environment access control LED load multi RMI deb BugAbout SELinuxSELinux (security-enhanced Linux) is the United States National Security Agency (NSA) implementation of mandatory access control, is the most outstanding new security subsystem in the history of Linux. Because of the need to control the mandatory access, so this feature makes the system administrator love and hate, a majority of production environment is to shut hi

SELinux (security-enhanced Linux) is the United States National Security Agency (NSA) implementation of mandatory access control, is the most outstanding new security subsystem in the history of Linux. Under the restriction of this access control system, the process can only access files that are needed in his tasks. SELinux is installed on Fedora and Red Hat Enterprise Linux by default.Although SELinux works well, in most cases we turn it off because

Tags: completed after stat splay write send done develop NSA consStatement: The blogger is using the CentOS6.9 systemResources:HTTPS://Github.com/rvoicilas/inotify-tools/wikihttp://www.ibm.com/ developerworks/cn/linux/l-inotifynew/2. 6 file system Change notification mechanism in the kernelReferencesInstructions for installing inotifyFirst, be sure to confirm the three files that must exist in the system before installing the INotify software.[Email p

Encryption principle: Using different encryption algorithms to add salt encryption processing of strings. To prevent the ciphertext from being MD5 by the dictionary for reverse brute force cracking. Encryption Algorithm (RFC 4357) published by the U.S. National Security Agency (NSA) is used to encrypt the encryption algorithm that is created by itself, to avoid security vulnerabilities. /** * Password encryption algorithm * Encrypt d

that I had copied a PDF document into the application. All documents copied would reside in the Documents folder of your application.Figure one by one . Copying a document into the applicationIf you want to extract the files from the application and save it locally onto your computer, select the file (s) and click The Save to ... button.Now, to prove the files is really copied into the Documents folder of your application, add the following code to th E offlinereaderviewcontroller.m File:-(void

through the vro. Apart from NSA and fireeye, I have never heard of anyone who has been in touch with the vro backdoor. There are only a few people who will configure the vro in China, let alone reverse lookup. Discussion about HTTPS: The Green logo is indeed a headache. What I have tried so far is nesting, inserting red labels in the green logo, and finally seeing the green logo. With regard to the traffic hijacking software, the Internet says that h

How to build a Diffie-Hellman Backdoor Recently, several encrypted backdoors emerged: the RSA product uses the elliptic curve pseudo-random generator Dual EC, which is believed to have been implanted by NSA; the network device manufacturer Juniper's operating system screnos was found to use a modified version of Dual EC, allowing third parties to decrypt encrypted traffic; the open-source tool socat found that a hard-coded 1024-bit Diffie-Hellman par

Apache Nifi is an open source project by the United States National Security Agency (NSA) to the Apache Foundation, which is designed to automate the flow of data between systems. Thanks to its workflow-based programming philosophy, the Nifi is very easy to use, powerful, reliable and highly configurable. Two most important features are its powerful user interface and good data backtracking tools (official website blown)Nifi is more convenient to use,

implemented. Users can choose the right security module to load to the kernel according to their own needs. The LSM framework was integrated into the Linux 2.6 official code in December 2003. LSM currently supports a variety of security frameworks including Apparmor,selinux, Smack and Tomoyo Linux. (after a few years of publication, DTE Linux was also implemented in the Linux 2.6 lsm)The DTE Linux article was the author's own prototype system based on the Linux 2.3 version, which was earlier an

improve network performance. Djbdns is a very powerful DNS server with the DNS Cache function, djbdns is safer and better performing than the bind dns server. It can be obtained directly by downloading http://cr.yp.to/or using the software package provided by red Hat.7. Use AES256 to enhance the security of gpg file encryptionTo improve the security of backup files or sensitive information, many Linux system administrators use gpg for encryption. When using gpg, it is best to specify the gpg to

bits, which is the same as that of md4. MD5 is more complex than MD4, and the speed is a little slower, but it is safer and better in terms of anti-analysis and anti-difference performance. (3) SHA-1 and others SHA1 is designed to be used together with DSA by nist nsa. It generates a hash value with a length of less than 264 for an input with a length of bits. Therefore, SHA1 is resistant to brute force attacks) better performance. SHA-1 is designed

control over kernel objects and Services Access Control over process initialization, inheritance, and program execution access control over ports, information, and network interfaces for file systems, directories, files, and open file descriptions. Last thought SELinux reduces the number of users and system programs that need to be adjusted to prevent system crashes. Now you can use the patch package to Upgrade Linux to meet your planning needs.Because SELinux is still a development project,

us to create a security configuration monitoring application to capture the status of iOS systems. The openness of the Android operating system means that applications can easily access the security status of Android devices. IOS devices can only monitor what the device is doing, who it is communicating with, and what data is being transmitted from the outside through the network. In the first sentence of the iOS Security Guide, it is pointed out that Apple regards security as its core when des

commands select to download patches such as ipp2p time. Export KERNEL_DIR =/usr/src/linux-2.6.15.6 Export IPTABLES_DIR =/usr/src/iptables-1.3.6 ./Runme ipp2p ./Runme time ./Runme connlimit 6. Configure kernel options Networking Networking options Network packet filtering (replaces ipchains) IP: Netfilter Configuration Select ipp2p, time, and Connections/IP Security options Remove NSA SELinux Support options Save and exit Vi/etc/sysconfig/seli

NSA professional physical intrusion device--usb Armory, can unlock any lock screen status under the Windows and Mac operating system, including the latest released Windows10, and earlier Mac OSX El Capitan/mavericks, want to know what the principle is? Come and see it!First of all, this was not possible, but the truth is I really did (believe me, because I can't believe it's true, I've tested it many times.) )USB Ethernet + DHCP + Responder = = Certif

The convenience of array classes1.for Loop (everyone will ...)2.NSEmunerator3.for inFirst of all, the second Nsemunerator enumerator is highlighted, and the system declaration is 1 @interface Nsenumerator: NSObject 3 - (id 5 @end 6 7 @interface Nsenumerator (nsextendedenumerator) 9 @property ( readonly , copy) Nsarray *allobjects; 10 11 @ End nsemunerator System DeclarationAttached to the collection class (NSA???? A?? Rray,

off.Security-EnhancedLinux is the access control system developed by the National Security Agency (NSA. SELinux can maximize the security of Linux systems. In the default Linux system, SELinux is enabled by default, and the configuration file is/etc/selinux/config. Generally, the "permissive" mode is used during the test, in this way, only a warning is issued when the SELinux rule is violated, and then the rule is modified. Finally, the user determin