{"id":100821,"date":"2021-07-23T10:22:39","date_gmt":"2021-07-23T08:22:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-firewalld-1-0"},"modified":"2021-07-23T10:22:39","modified_gmt":"2021-07-23T08:22:39","slug":"vypusk-firewalld-1-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/vypusk-firewalld-1-0","title":{"rendered":"Release of firewalld 1.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>The release of the dynamically managed firewall firewalld 1.0 has been announced. It is implemented as a wrapper over the packet filters nftables and iptables. Firewalld runs as a background process, allowing dynamic changes to the packet filter rules via D-Bus, without the need to reload the packet filter rules or interrupt established connections. The project is already being used in many Linux distributions, including RHEL 7+, Fedora 18+, and SUSE\/openSUSE 15+. The firewalld code is written in Python and is distributed under the GPLv2 license.      <\/p>\n<p>The firewall is managed using the utility firewall-cmd, which creates rules based not on <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/en\/lir\/ipv4\/\"   title=\"(the key to connect to is specified, and iroh finds the associated host and establishes an encrypted connection using the QUIC protocol). Direct P2P connections are established whenever possible, but if not, it falls back to using relays, which are also employed for host discovery by keys. You can run your own relay or connect to public relays supported by the community.\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"837\">(the key to connect to is specified, and iroh finds the associated host and establishes an encrypted connection using the QUIC protocol). Direct P2P connections are established whenever possible, but if not, it falls back to using relays, which are also employed for host discovery by keys. You can run your own relay or connect to public relays supported by the community.<\/a>, network interfaces and port numbers, and from service names (for example, to grant access to SSH you need to execute &#171;firewall-cmd &#8212;add &#8212;service=ssh&#187;, to close SSH &#8212; &#171;firewall-cmd &#8212;remove &#8212;service=ssh&#187;). The firewall configuration can also be modified using the graphical interface firewall-config (GTK) and the applet firewall-applet (Qt). Support for managing the firewall through the D-BUS API firewalld is available in projects such as NetworkManager, libvirt, podman, docker, and fail2ban.    <\/p>\n<p>The significant version number change is due to modifications that break backward compatibility and change the behavior of zone management. All parameters defined in a zone are now only applied to traffic addressed to the host running firewalld, while filtering transit traffic requires policy configuration. The most notable changes include:  <\/p>\n<ul>\n<li class=\"l\"> The backend that allowed operation over iptables has been deprecated. Support for iptables will be maintained in the foreseeable future, but this backend will not be further developed.\n<li class=\"l\"> The intra-zone-forwarding mode is enabled and activated by default for all new zones, allowing free movement of packets between network interfaces or traffic sources within a single zone (public, block, trusted, internal, etc.). To revert to the old behavior and prohibit packet forwarding within a single zone, you can use the command 'firewall-cmd \u2014permanent \u2014zone public \u2014remove-forward'.\n<li class=\"l\"> NAT-related rules have been moved to the 'inet' protocol family (formerly added in the 'ip' and 'ip6' families, which led to the need for duplicating rules for both IPv4 and IPv6). This change has eliminated duplicates when using ipset \u2014 instead of three copies of ipset entries, only one is now used.\n<li class=\"l\"> The 'default' action specified in the '--set-target' parameter is now equivalent to 'reject', meaning that all packets not matching specific rules within the zone will be blocked by default. The only exception is for ICMP packets, which are still allowed. To revert to the old behavior for the publicly accessible 'trusted' zone, you can use the following rules: firewall-cmd \u2014permanent \u2014new-policy allowForward firewall-cmd \u2014permanent \u2014policy allowForward \u2014set-target ACCEPT firewall-cmd \u2014permanent \u2014policy allowForward \u2014add-ingress-zone public firewall-cmd \u2014permanent \u2014policy allowForward \u2014add-egress-zone trusted firewall-cmd \u2014reload.\n<li class=\"l\"> Policies with positive priority are now executed just before the '\u2014set-target catch-all' rule is applied, that is, at the moment preceding the addition of final rules drop, reject, or accept, including for zones using '\u2014set-target drop|reject|accept'.\n<li class=\"l\"> Blocking ICMP now only applies to incoming packets addressed to the current host (input) and does not affect packets forwarded between zones (forward).\n<li class=\"l\"> The tftp-client service, intended for tracking connections for the TFTP protocol but found to be unusable, has been removed.\n<li class=\"l\"> The 'direct' interface has been deprecated, which allowed for direct insertion of predefined packet filtering rules. The need for this interface has vanished after the addition of the ability to filter redirected and outgoing packets.\n<li class=\"l\"> A new parameter, CleanupModulesOnExit, has been added, which is by default set to 'no'. This parameter allows for managing the unloading of kernel modules after firewalld has stopped.\n<li class=\"l\"> The use of ipset is now allowed when defining the target system (destination).\n<li class=\"l\"> Definitions for WireGuard, Kubernetes, and netbios-ns services have been added.\n<li class=\"l\"> Autocomplete rules for zsh have been implemented.\n<li class=\"l\"> Support for Python 2 has been discontinued.\n<li class=\"l\"> The dependency list has been shortened. For firewalld to work, in addition to the Linux kernel, only the python libraries dbus, gobject, and nftables are now required, while the packages ebtables, ipset and iptables have been moved to optional. The python libraries decorator and slip have been removed from the dependencies.    <\/ul>\n<p>Source: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55537\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c\u043e\u0433\u043e \u043c\u0435\u0436\u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u044d\u043a\u0440\u0430\u043d\u0430 firewalld 1.0, \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0432 \u0444\u043e\u0440\u043c\u0435 \u043e\u0431\u0432\u044f\u0437\u043a\u0438 \u043d\u0430\u0434 \u043f\u0430\u043a\u0435\u0442\u043d\u044b\u043c\u0438 \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u043c\u0438 nftables \u0438 iptables. Firewalld \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f \u0432 \u0432\u0438\u0434\u0435 \u0444\u043e\u043d\u043e\u0432\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438 \u0438\u0437\u043c\u0435\u043d\u044f\u0442\u044c \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u0433\u043e \u0444\u0438\u043b\u044c\u0442\u0440\u0430 \u0447\u0435\u0440\u0435\u0437 D-Bus, \u0431\u0435\u0437 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043f\u0440\u0430\u0432\u0438\u043b \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u0433\u043e \u0444\u0438\u043b\u044c\u0442\u0440\u0430 \u0438 \u0431\u0435\u0437 \u0440\u0430\u0437\u0440\u044b\u0432\u0430 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439. \u041f\u0440\u043e\u0435\u043a\u0442 \u0443\u0436\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0432\u043e \u043c\u043d\u043e\u0433\u0438\u0445 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430\u0445 Linux, \u0432\u043a\u043b\u044e\u0447\u0430\u044f RHEL 7+, Fedora 18+ [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100821","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" 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