X-Git-Url: https://git.distorted.org.uk/~mdw/preload-hacks/blobdiff_plain/f6049fdd4722ff4a4a0cfc6498653ce101a7e646..9627d1477bd3fe52d845018597a486111efdf86d:/noip.1?ds=sidebyside diff --git a/noip.1 b/noip.1 index d11ce7d..c18110d 100644 --- a/noip.1 +++ b/noip.1 @@ -79,10 +79,8 @@ reads configuration from .B .noip in the calling user's home directory, as determined by the .B HOME -environment, or, failing that, looking up the -.I real -(not effective) user id in the password database. However, if the -environment variable +environment, or, failing that, looking up the effective user id in the +password database. However, if the environment variable .B NOIP_CONFIG is set, then the file it names is read instead (assuming it exists; if it doesn't, no configuration is read). @@ -251,7 +249,7 @@ is empty, the default is to deny all addresses. For example, it may be useful to allow access at least to a DNS server. This can be accomplished by adding a line .VS -realconnect +1.2.3.4:52 +realconnect +1.2.3.4:53 .VE to the configuration file, where 1.2.3.4 is the IP address of one of your DNS server. @@ -282,9 +280,9 @@ port to himself or a small group. is implemented as an .B LD_PRELOAD hack. It won't work on setuid programs. Also, perhaps more -importantly, it can't do anything a +importantly, it can't do anything to prevent a .I malicious -program use of networking: a program could theoretically issue sockets +program's use of networking: a program could theoretically issue sockets system calls directly instead of using the C library calls that .B noip intercepts. It is intended only as a tool for enhancing the security of @@ -319,4 +317,4 @@ child processes will be unaffected. .PP This manual is surprisingly long and complicated for such a simple hack. .SH AUTHOR -Mark Wooding, +Mark Wooding,