[surfman]

realurl_conf.php.

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['realurl'] = array (
'_DEFAULT' => array (
...............
$RootPID = array(
'domen1.ua' => '1',
'domen2.ua' => '7',
'domen3.ua' => '6',
),
'pagePath' => array(
'type' => 'user',
'userFunc' => 'EXT:realurl/class.tx_realurl_advanced.php:&tx_realurl_advanced->main',
'spaceCharacter' => '-',
'languageGetVar' => 'L',
'rootpage_id' => $RootPID[$_SERVER['HTTP_HOST']],
'disablePathCache' => '0',
'expireDays' => '7',
'segTitleFieldList' => 'tx_realurl_pathsegment,alias,nav_title,title',
'excludePageIds' => 'null'
) ,

................
),

);

localconf.php

$tx_realurl_config = $TYPO3_CONF_VARS['EXTCONF']['realurl']['_DEFAULT'];
$TYPO3_CONF_VARS['EXTCONF']['realurl']['domen1.ua']=$tx_realurl_config;
$TYPO3_CONF_VARS['EXTCONF']['realurl']['domen2.ua']=$tx_realurl_config;
$TYPO3_CONF_VARS['EXTCONF']['realurl']['domen3.ua']=$tx_realurl_config;

$TYPO3_CONF_VARS['EXTCONF']['realurl']['domen1.ua']['pagePath']['rootpage_id']=1;
$TYPO3_CONF_VARS['EXTCONF']['realurl']['domen2.ua']['pagePath']['rootpage_id'] = 7;
$TYPO3_CONF_VARS['EXTCONF']['realurl']['domen3.ua']['pagePath']['rootpage_id'] = 6;

В TS каждого сайта прописан свой baseURL.
В админке домены созданы.