Catégorie : Unix

Unix (all-caps UNIX for the trademark) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

Ripe MD

Ripe MD RIPEMD160, RIPEMD160_Init, RIPEMD160_Update, RIPEMD160_Final – RIPEMD-160 hash function SYNOPSIS #include (openssl/ripemd.h) unsigned char *RIPEMD160(const unsigned char *d, unsigned long n, unsigned char *md); void RIPEMD160_Init(RIPEMD160_CTX *c); void RIPEMD160_Update(RIPEMD_CTX *c, const void *data, unsigned long len); void RIPEMD160_Final(unsigned char *md, RIPEMD160_CTX *c); DESCRIPTION RIPEMD-160 is a cryptographic hash function with a 160 bit output. […]


RC4 RC4_set_key, RC4 – RC4 encryption SYNOPSIS #include (openssl/rc4.h) void RC4_set_key(RC4_KEY *key, int len, const unsigned char *data); void RC4(RC4_KEY *key, unsigned long len, const unsigned char *indata, unsigned char *outdata); DESCRIPTION This library implements the Alleged RC4 cipher, which is described for example in Applied Cryptography. It is believed to be compatible with RC4[TM], […]


Ping ping – send ICMP ECHO_REQUEST packets to network hosts SYNOPSIS ping [-dfnqrvR] [-c count] [-i wait] [-l preload] [-p pattern] [-s packetsize] DESCRIPTION Ping uses the ICMP protocol’s mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST datagrams (« pings ») have an IP and ICMP header, followed by a « struct […]


Nfsiod nfsiod — local NFS asynchronous I/O server SYNOPSIS nfsiod [-n num_servers] DESCRIPTION Nfsiod runs on an NFS client machine to service asynchronous I/O requests to its server. It improves performance but is not required for correct operation. Unless otherwise specified, a single server is started. The options are as follows: -n Specify how many […]


Netstat-nat SYNOPSIS netstat-nat [options] DESCRIPTION netstat-nat Displays NAT connections managed by netfilter/iptables which comes with the > 2.4.x linux kernels. The program reads its information from ‘/proc/net/ip_conntrack’, which is the temporary conntrack-storage of netfilter. OPTIONS -h displays help -n don’t resolve IPs/portnumbers to host/portnames -p display NAT connections with protocol selection (see /etc/protocols) -s display […]