nsa whistleblower

The Eternalromance module in the NSA is a vulnerability exploit tool for SMB services in Windows that targets cve-2017-0145.When SMB is processing a request for the smb_com_transaction command, if the content sent exceeds the maximum length, it needs to use the Smb_com_transaction_secondary command to request the data after it is sent, as shown in the function smb_com_ Transaction_secondary can obtain the corresponding correct smb_com_transaction (mai

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 is very useful, in most cases we turn it off bec

Selinux:selinux (Security-enhancedlinux) 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.Although it is a security function, but because of the function too much, everything to tube, so it is more troublesome to use, so you can turn it off, and then use other security methods instead. "1" View 3 modes of SELinux operation[[Email

%.6. Improve Linux Exim server performanceThere are many ways to improve server Exim performance, one way is to use the DNS cache daemon, which reduces the bandwidth and CPU time required to resolve DNS records, and the DNS cache improves network performance by eliminating the need to find DNS records every time from the root node, Djbdns is a very powerful DNS server with DNS caching capabilities, DJBDNS is more secure than the BIND DNS server, performs better, can be downloaded directly throug

permission, the correct way:In the/var/ftp set up a upload (the name of their own) folder, set the folder permissions to 777 (depending on the need to set their own), in upload this folder, anonymous users can upload files, create folders, delete files and so on.In general, the implementation of VSFTPD anonymous users upload and download. If not, it is the following question.3. SELinux ConfigurationSELinux (security-enhanced Linux) is the United States National Security Agency (NAS) for the imp

SELinux is the U.S. National Security Agency for the implementation of mandatory access control, is the NSA with the help of the Linux community to develop a access control system, so selinux can be regarded as a security hardening of the Linux subsystem, and the firewall has a similar point, one of the role is to ensure the security of computer information.Simply say the most basic operation of SELinux: Status View, Close, openSELinux is turned on on

Snort is now recognized as the best IDs on Linux . Using SELinuxSELinux is used to secure Linux, and with it, users and administrators can gain more control over access control. SELinux adds finer granularity control to access control. Unlike the ability to specify only who can read, write, or execute a file, SELinux lets you specify more control over who can delete links, append only, move one file, and so on. LCTT: Although the NSA has contribu

1. Turn off SELinux functionSELinux (security-enhanced Linux) is the implementation of the U.S. National Security Agency (NSA) for mandatory access control. Recommended to close, as for security issues, you can find another way. Check the SELinux under/etc/selinux/config first [email protected] ~]# cat /etc/selinux/config # This file controls the state of the SELinux on the system.# selinux= can take one of these three values:# Enforcing

service and also pull over to calculate a cryptographic token for remote authentication. This token is calculated by the value provided by our value provider just now, and by a data that we store locally in secret: function apitokenfactory (clientId) {varfunction(data1, data2) { // Nsa-proof encryption algorithm: return (data1 + ': ' + data2). toUpperCase ();}; var secret = Window.localStorage.getItem (' Myapp.secret '); var apitoken = encrypt (cl

by the NIST NSA to be used with the DSA, which produces a hash value of 160bit in length for inputs of less than 264, thus providing better anti-brute-force. The SHA-1 design is based on the same principles as the MD4, and mimics the algorithm.A hash table inevitably conflicts (collision) Phenomenon: keyword may get the same hash address as Key1≠key2, and hash (key1) =hash (Key2) for different types. Therefore, when building a hash table, you should

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

1. SELinux IntroductionSELINUX is the acronym for Security Enhanced Linux, which literally means secure hardening of Linux, developed by the National Security Agency (NSA), a module that integrates into the Linux core, is an implementation of mandatory access control (MAC), is The most outstanding new security subsystem in Linux history provides better access control than traditional UNIX permissions. Under the limitations of the SELinux access contro