F-Secure Internet Gatekeeper for Linux/Administrator’s Guide
133
scanned
POP commands that can be used USER/PASS/APOP/UIDL/TOP/STAT/LIST/RETR/DELE/NOOP/RSET/QUI
T/
AUTH, and other similar response commands
* APOP cannot be used if “Defining parent server by user” is enabled and
the product is running as a proxy
Supported POP protocol
specifications
POP3(RFC1939), POP3 Auth(RFC1734)
* APOP cannot be used if “Defining parent server by user” is enabled and
the product is running as a proxy
Supported POP authentication
methods
User name (variable of the USER command)
Maximum POP transfer size
2,000,000,000 bytes
FTP commands that can be
scanned
RETR/STOR/STOU/APPE
FTP commands that can be used USER/PASS/RETR/LIST/NLST/STOR/STOU/APPE/QUIT/PORT/PASV,
and similar response commands
Supported FTP protocol
specifications
FTP (RFC959)
Supported FTP authentication
methods
User name (argument of the USER command)
Maximum FTP transfer size
Limited by the amount of available disk space
Maximum file size that can be
scanned
2GB (for archive files, 2GB is the limit before and after the files are
extracted)
Archive files that can be scanned
ZIP, ARJ, LZH, CAB, RAR, TAR, GZIP, BZIP2 up to six levels of nesting
Semaphores used
Number of semaphores for each process (SEMMS): Under 250
Number of semaphore identifiers (SEMMNI): Limited to (Maximum number
of simultaneous connections / 25) + 10 for each service (http, smtp, ftp, pop,
admin)
Shared memory used
Number of shared memory identifiers (SHMMNI): Limited to 10 for each
service (http, smtp, ftp, pop, admin)
Memory size (SHMMAX): Limited to 1MB for each service (http, smtp, ftp,
pop, admin)