Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #585
Difficulty: Easy
Most object oriented programming languages such as C++ and Java are class-based languages.
True or False?
Linux & Unix Commands - Search Man Pages

l-dialcodes(5) [bsd man page]

L-DIALCODES(5)							File Formats Manual						    L-DIALCODES(5)

L-dialcodes - UUCP phone number index file DESCRIPTION
The L-dialcodes file defines the mapping of strings from the phone number field of L.sys(5) to actual phone numbers. Each line in L-dialcodes has the form: alpha_string phone_number The two items can be separated by any number of blanks or tabs. Lines beginning with a `#' character are comments. A phone number in L.sys can be preceded by an arbitrary alphabetic character string; the string is matched against the list of alpha_strings in L-dialcodes. If a match is found, phone_number is substituted for it. If no match is found, the string is discarded. L-dialcodes is commonly used either of two ways: (1) The alphabetic strings are used as prefixes to denote area codes, zones, and other commonly used sequences. For example, if L-dialcodes included the following lines: chi 1312 mv 1415 In L.sys you could enter: chivax Any ACU 1200 chi5551234 ogin:--ogin: nuucp mvpyr Any ACU 1200 mv5556001 ogin:--ogin: Uuucp instead of chivax Any ACU 1200 13125551234 ogin:--ogin: nuucp mvpyr Any ACU 1200 14155556001 ogin:--ogin: Uuucp (2) All phone numbers are placed in L-dialcodes, one for each remote site. L.sys then refers to these by name. For example, if L-dialcodes contains the following lines: chivax 13125551234 mvpyr 14155556601 then L.sys could have: chivax Any ACU 1200 chivax ogin:--ogin: nuucp mvpyr Any ACU 1200 mvpyr ogin:--ogin: Uuucp This scheme allows a site administrator to give users read access to the table of phone numbers, while still protecting the login/password sequences in L.sys. FILES
/etc/uucp/L-dialcodes /etc/uucp/UUAIDS/L-dialcodes L-dialcodes example SEE ALSO
uucp(1), uux(1), L.sys(5), uucico(8). 4.3 Berkeley Distribution October 22, 1996 L-DIALCODES(5)

Check Out this Related Man Page

UUCICO(8)						      System Manager's Manual							 UUCICO(8)

uucico, uucpd - transfer files queued by uucp or uux SYNOPSIS
/usr/sbin/uucico [ -dspooldir ] [ -ggrade ] [ -rrole ] [ -R ] [ -ssystem ] [ -xdebug ] [ -L ] [ -tturnaround ] /usr/libexec/uucpd DESCRIPTION
Uucico performs the actual work involved in transferring files between systems. Uucp(1) and uux(1) merely queue requests for data transfer which uucico processes. The following options are available. -dspooldir Use spooldir as the spool directory. The default is /usr/spool/uucp. -ggrade Only send jobs of grade grade or higher this transfer. The grade of a job is specified when the job is queued by uucp or uux. -rrole role is either 1 or 0; it indicates whether uucico is to start up in master or slave role, respectively. 1 is used when running uucico by hand or from cron(8). 0 is used when another system calls the local system. Slave role is the default. -R Reverse roles. When used with the -r1 option, this tells the remote system to begin sending its jobs first, instead of waiting for the local machine to finish. -ssystem Call only system system. If -s is not specified, and -r1 is specified, uucico will attempt to call all systems for which there is work. If -s is specified, a call will be made even if there is no work for that system. This is useful for polling. -xdebug Turn on debugging at level debug. Level 5 is a good start when trying to find out why a call failed. Level 9 is very detailed. Level 99 is absurdly verbose. If role is 1 (master), output is normally written to the standard message output stderr. If stderr is unavailable, output is written to /usr/spool/uucp/AUDIT/system. When role is 0 (slave), debugging output is always written to the AUDIT file. -L Only call ``local'' sites. A site is considered local if the device-type field in L.sys is one of LOCAL, DIR or TCP. -tturnaround Use turnaround as the line turnaround time (in minutes) instead of the default 30. If turnaround is missing or 0, line turnaround will be disabled. After uucico has been running in slave role for turnaround minutes, it will attempt to run in master role by negotiating with the remote machine. In earlier versions of uucico, a transfer of many large files in one direction would hold up mail going in the other direction. With the turnaround code working, the message flow will be more bidirectional in the short term. This option only works with newer uucico's and is ignored by older ones. If uucico receives a SIGFPE (see kill(1)), it will toggle the debugging on or off. Uucpd is the server for supporting uucp connections over networks. Uucpd listens for service requests at the port indicated in the ``uucp'' service specification; see services(5). The server provides login name and password authentication before starting up uucico for the rest of the transaction. Uucico is commonly used either of two ways: as a daemon run periodically by cron(8) to call out to remote systems, and as a ``shell'' for remote systems who call in. For calling out periodically, a typical line in crontab would be: 0 * * * * /usr/sbin/uucico -r1 This will run uucico every hour in master role. For each system that has transfer requests queued, uucico calls the system, logs in, and executes the transfers. The file L.sys(5) is consulted for information about how to log in, while L-devices(5) specifies available lines and modems for calling. For remote systems to dial in, an entry in the passwd(5) file must be created, with a login ``shell'' of uucico. For example: nuucp:Password:6:1::/usr/spool/uucppublic:/usr/sbin/uucico The UID for UUCP remote logins is not critical, so long as it differs from the UUCP Administrative login. The latter owns the UUCP files, and assigning this UID to a remote login would be an extreme security hazard. FILES
/etc/uucp/ UUCP internal files /etc/uucp/L-devices Local device descriptions /etc/uucp/L-dialcodes Phone numbers and prefixes /etc/uucp/L.aliases Hostname aliases /etc/uucp/L.cmds Remote command permissions list /etc/uucp/L.sys Host connection specifications /etc/uucp/USERFILE Remote directory tree permissions list /usr/spool/uucp/ Spool directory /usr/spool/uucp/AUDIT/* Debugging audit trails /usr/spool/uucp/C./ Control files directory /usr/spool/uucp/D./ Incoming data file directory /usr/spool/uucp/D.hostname/ Outgoing data file directory /usr/spool/uucp/D.hostnameX/ Outgoing execution file directory /usr/spool/uucp/CORRUPT/ Place for corrupted C. and D. files /usr/spool/uucp/ERRLOG UUCP internal error log /usr/spool/uucp/LOGFILE UUCP system activity log /usr/spool/uucp/LCK/LCK..* Device lock files /usr/spool/uucp/SYSLOG File transfer statistics log /usr/spool/uucp/STST/* System status files /usr/spool/uucp/TM./ File transfer temp directory /usr/spool/uucp/X./ Incoming execution file directory /usr/spool/uucppublic Public access directory SEE ALSO
uucp(1), uuq(1), uux(1), L-devices(5), L-dialcodes(5), L.aliases(5), L.cmds(5), L.sys(5), uuclean(8), uupoll(8), uusnap(8), uuxqt(8) D. A. Nowitz and M. E. Lesk, A Dial-Up Network of UNIX Systems. D. A. Nowitz, Uucp Implementation Description. 4.3 Berkeley Distribution October 23, 1996 UUCICO(8)

Featured Tech Videos