Итак, задача:
Имеется работающий интернет магазин, всё крутиться на одном серваке — необходимо без потерь заказов перетащить всё на другой сервер.

Схема следующая:
1. Перетаскиваем файло и БД на новый сервер
2. На старом сервере настраиваем работу на MYSQL на новый (по IP)
3. Переключаем DNS на новый

За основу (куда тащим) у меня в распоряжении оказалась виртуальная машина VM Битрикс.
Соответственно, сначала заводим юзера с правами зацепляться отовсюду,в настройках /etc/my.cnf убираем привязку bind_adress и разрешаем в фаерволе входящие по порту 3306 (либо руками, либо можно webmin поставить). Всё это после окончательного переноса нужно будет возвратить для большей секъюрности в прежние значения.
Далее проверяем возможность зацепиться к базе со старого сервака простым скриптиком через mysql_connect
Ура — всё ок!

Далее чего пишу-то: меняю настройки в системе — а нифига! не цепляется
Помогли на официальном форуме.

настройки хоста в \kernel\wbs.xml , замените везде localhost

Ну и кэш всё таки в инсталлере почистить не помешает!

Ещё момент — на сайте откуда перетаскивали mysql был регистронезависим по отношению к названию таблиц, а на хостинге куда — регистрозависим.
Соответственно, пришлось переименовывать таблицы


RENAME TABLE accessrights_link TO ACCESSRIGHTS_LINK;
RENAME TABLE appsettings TO APPSETTINGS;
RENAME TABLE cfolder TO CFOLDER;
RENAME TABLE clist TO CLIST;
RENAME TABLE clist_contact TO CLIST_CONTACT;
RENAME TABLE company TO COMPANY;
RENAME TABLE contact TO CONTACT;
RENAME TABLE contactfield TO CONTACTFIELD;
RENAME TABLE contactnote TO CONTACTNOTE;
RENAME TABLE contacttype TO CONTACTTYPE;
RENAME TABLE currency TO CURRENCY;
RENAME TABLE customer TO CUSTOMER;
RENAME TABLE disk_usage TO DISK_USAGE;
RENAME TABLE email_contact TO EMAIL_CONTACT;
RENAME TABLE issue TO ISSUE;
RENAME TABLE issuefilter TO ISSUEFILTER;
RENAME TABLE issuetransitionlog TO ISSUETRANSITIONLOG;
RENAME TABLE issuetransitionschema TO ISSUETRANSITIONSCHEMA;
RENAME TABLE issuetransitiontemplate TO ISSUETRANSITIONTEMPLATE;
RENAME TABLE issuetransitiontemplateschema TO ISSUETRANSITIONTEMPLATESCHEMA;
RENAME TABLE mmaccess TO MMACCESS;
RENAME TABLE mmaccount TO MMACCOUNT;
RENAME TABLE mmcache TO MMCACHE;
RENAME TABLE mmfolder TO MMFOLDER;
RENAME TABLE mmgroupaccess TO MMGROUPACCESS;
RENAME TABLE mmmessage TO MMMESSAGE;
RENAME TABLE mmmsentto TO MMMSENTTO;
RENAME TABLE mmsender TO MMSENDER;
RENAME TABLE mmsent TO MMSENT;
RENAME TABLE paccess TO PACCESS;
RENAME TABLE pgroupaccess TO PGROUPACCESS;
RENAME TABLE project TO PROJECT;
RENAME TABLE projectwork TO PROJECTWORK;
RENAME TABLE sc_aff_commissions TO SC_aff_commissions;
RENAME TABLE sc_aff_payments TO SC_aff_payments;
RENAME TABLE sc_aux_pages TO SC_aux_pages;
RENAME TABLE sc_brends TO SC_brends;
RENAME TABLE sc_categories TO SC_categories;
RENAME TABLE sc_category_product TO SC_category_product;
RENAME TABLE sc_category_product_options__variants TO SC_category_product_options__variants;
RENAME TABLE sc_category__product_options TO SC_category__product_options;
RENAME TABLE sc_config_settings TO SC_config_settings;
RENAME TABLE sc_countries TO SC_countries;
RENAME TABLE sc_currency_types TO SC_currency_types;
RENAME TABLE sc_custgroups TO SC_custgroups;
RENAME TABLE sc_customers TO SC_customers;
RENAME TABLE sc_customer_addresses TO SC_customer_addresses;
RENAME TABLE sc_customer_reg_fields TO SC_customer_reg_fields;
RENAME TABLE sc_customer_reg_fields_values TO SC_customer_reg_fields_values;
RENAME TABLE sc_customer_reg_fields_values_quickreg TO SC_customer_reg_fields_values_quickreg;
RENAME TABLE sc_discount_coupons TO SC_discount_coupons;
RENAME TABLE sc_discussions TO SC_discussions;
RENAME TABLE sc_divisions TO SC_divisions;
RENAME TABLE sc_division_access TO SC_division_access;
RENAME TABLE sc_division_custom_settings TO SC_division_custom_settings;
RENAME TABLE sc_division_interface TO SC_division_interface;
RENAME TABLE sc_htmlcodes TO SC_htmlcodes;
RENAME TABLE sc_interface_interfaces TO SC_interface_interfaces;
RENAME TABLE sc_language TO SC_language;
RENAME TABLE sc_linkexchange_categories TO SC_linkexchange_categories;
RENAME TABLE sc_linkexchange_links TO SC_linkexchange_links;
RENAME TABLE sc_local TO SC_local;
RENAME TABLE sc_localgroup TO SC_localgroup;
RENAME TABLE sc_modules TO SC_modules;
RENAME TABLE sc_module_configs TO SC_module_configs;
RENAME TABLE sc_news_table TO SC_news_table;
RENAME TABLE sc_ordered_carts TO SC_ordered_carts;
RENAME TABLE sc_orders TO SC_orders;
RENAME TABLE sc_orders_discount_coupons TO SC_orders_discount_coupons;
RENAME TABLE sc_order_price_discount TO SC_order_price_discount;
RENAME TABLE sc_order_status TO SC_order_status;
RENAME TABLE sc_order_status_changelog TO SC_order_status_changelog;
RENAME TABLE sc_payment_types TO SC_payment_types;
RENAME TABLE sc_payment_types__shipping_methods TO SC_payment_types__shipping_methods;
RENAME TABLE sc_products TO SC_products;
RENAME TABLE sc_products_opt_val_variants TO SC_products_opt_val_variants;
RENAME TABLE sc_product_list TO SC_product_list;
RENAME TABLE sc_product_list_item TO SC_product_list_item;
RENAME TABLE sc_product_options TO SC_product_options;
RENAME TABLE sc_product_options_set TO SC_product_options_set;
RENAME TABLE sc_product_options_values TO SC_product_options_values;
RENAME TABLE sc_product_pictures TO SC_product_pictures;
RENAME TABLE sc_related_items TO SC_related_items;
RENAME TABLE sc_rpost_zones TO SC_rpost_zones;
RENAME TABLE sc_settings TO SC_settings;
RENAME TABLE sc_settings_groups TO SC_settings_groups;
RENAME TABLE sc_shipping_methods TO SC_shipping_methods;
RENAME TABLE sc_shopping_carts TO SC_shopping_carts;
RENAME TABLE sc_shopping_cart_items TO SC_shopping_cart_items;
RENAME TABLE sc_shopping_cart_items_content TO SC_shopping_cart_items_content;
RENAME TABLE sc_spmodules TO SC_spmodules;
RENAME TABLE sc_spmodules_settings TO SC_spmodules_settings;
RENAME TABLE sc_subscribers TO SC_subscribers;
RENAME TABLE sc_system TO SC_system;
RENAME TABLE sc_tagged_objects TO SC_tagged_objects;
RENAME TABLE sc_tags TO SC_tags;
RENAME TABLE sc_tax_classes TO SC_tax_classes;
RENAME TABLE sc_tax_rates TO SC_tax_rates;
RENAME TABLE sc_tax_rates__zones TO SC_tax_rates__zones;
RENAME TABLE sc_tax_zip TO SC_tax_zip;
RENAME TABLE sc_zones TO SC_zones;
RENAME TABLE sc__courier_rates TO SC__courier_rates;
RENAME TABLE sc__courier_rates2 TO SC__courier_rates2;
RENAME TABLE sc__intershipper_carriers TO SC__intershipper_carriers;
RENAME TABLE sc__module_payment_invoice_jur TO SC__module_payment_invoice_jur;
RENAME TABLE sc__module_payment_invoice_phys TO SC__module_payment_invoice_phys;
RENAME TABLE sc__module_shipping_bycountries_byzones_rates TO SC__module_shipping_bycountries_byzones_rates;
RENAME TABLE sc__module_shipping_bycountries_byzones_rates_percent TO SC__module_shipping_bycountries_byzones_rates_percent;
RENAME TABLE sms_balance TO SMS_BALANCE;
RENAME TABLE sms_credit_history TO SMS_CREDIT_HISTORY;
RENAME TABLE sms_history TO SMS_HISTORY;
RENAME TABLE ugroup TO UGROUP;
RENAME TABLE ugroup_user TO UGROUP_USER;
RENAME TABLE ug_accessrights TO UG_ACCESSRIGHTS;
RENAME TABLE unsubscriber TO UNSUBSCRIBER;
RENAME TABLE user_disk_quota TO USER_DISK_QUOTA;
RENAME TABLE user_settings TO USER_SETTINGS;
RENAME TABLE u_accessrights TO U_ACCESSRIGHTS;
RENAME TABLE wbs_user TO WBS_USER;
RENAME TABLE wg_param TO WG_PARAM;
RENAME TABLE wg_widget TO WG_WIDGET;
RENAME TABLE workassignment TO WORKASSIGNMENT;