1 <!-- markdownlint-disable -->
3 # banIP - ban incoming and outgoing IP addresses/subnets via Sets in nftables
6 IP address blocking is commonly used to protect against brute force attacks, prevent disruptive or unauthorized address(es) from access or it can be used to restrict access to or from a particular geographic area — for example. Further more banIP scans the log file via logread and bans IPs that make too many password failures, e.g. via ssh.
9 * banIP supports the following fully pre-configured domain blocklist feeds (free for private usage, for commercial use please check their individual licenses).
10 **Please note:** By default every feed blocks all supported chains. The columns "WAN-INP", "WAN-FWD" and "LAN-FWD" show for which chains the feeds are suitable in common scenarios, e.g. the first entry should be limited to the LAN forward chain - see the config options 'ban\_blockpolicy', 'ban\_blockinput', 'ban\_blockforwardwan' and 'ban\_blockforwardlan' below.
12 | Feed | Focus | WAN-INP | WAN-FWD | LAN-FWD | Port-Limit | Information |
13 | :------------------ | :----------------------------- | :-----: | :-----: | :-----: | :----------: | :----------------------------------------------------------- |
14 | adaway | adaway IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
15 | adguard | adguard IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
16 | adguardtrackers | adguardtracker IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
17 | antipopads | antipopads IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
18 | asn | ASN segments | | | x | tcp: 80, 443 | [Link](https://asn.ipinfo.app) |
19 | backscatterer | backscatterer IPs | x | x | | | [Link](https://www.uceprotect.net/en/index.php) |
20 | becyber | malicious attacker IPs | x | x | | | [Link](https://github.com/duggytuxy/malicious_ip_addresses) |
21 | binarydefense | binary defense banlist | x | x | | | [Link](https://iplists.firehol.org/?ipset=bds_atif) |
22 | bogon | bogon prefixes | x | x | | | [Link](https://team-cymru.com) |
23 | bruteforceblock | bruteforceblocker IPs | x | x | | | [Link](https://danger.rulez.sk/index.php/bruteforceblocker/) |
24 | country | country blocks | x | x | | | [Link](https://www.ipdeny.com/ipblocks) |
25 | cinsscore | suspicious attacker IPs | x | x | | | [Link](https://cinsscore.com/#list) |
26 | debl | fail2ban IP blacklist | x | x | | | [Link](https://www.blocklist.de) |
27 | doh | public DoH-Provider | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/DoH-IP-blocklists) |
28 | drop | spamhaus drop compilation | x | x | | | [Link](https://www.spamhaus.org) |
29 | dshield | dshield IP blocklist | x | x | | | [Link](https://www.dshield.org) |
30 | edrop | spamhaus edrop compilation | x | x | | | [Link](https://www.spamhaus.org) |
31 | etcompromised | ET compromised hosts | x | x | | | [Link](https://iplists.firehol.org/?ipset=et_compromised) |
32 | feodo | feodo tracker | x | x | | | [Link](https://feodotracker.abuse.ch) |
33 | firehol1 | firehol level 1 compilation | x | x | | | [Link](https://iplists.firehol.org/?ipset=firehol_level1) |
34 | firehol2 | firehol level 2 compilation | x | x | | | [Link](https://iplists.firehol.org/?ipset=firehol_level2) |
35 | firehol3 | firehol level 3 compilation | x | x | | | [Link](https://iplists.firehol.org/?ipset=firehol_level3) |
36 | firehol4 | firehol level 4 compilation | x | x | | | [Link](https://iplists.firehol.org/?ipset=firehol_level4) |
37 | greensnow | suspicious server IPs | x | x | | | [Link](https://greensnow.co) |
38 | iblockads | Advertising IPs | | | x | tcp: 80, 443 | [Link](https://www.iblocklist.com) |
39 | iblockspy | Malicious spyware IPs | | | x | tcp: 80, 443 | [Link](https://www.iblocklist.com) |
40 | ipsum | malicious IPs | x | x | | | [Link](https://github.com/stamparm/ipsum) |
41 | ipthreat | hacker and botnet TPs | x | x | | | [Link](https://ipthreat.net) |
42 | myip | real-time IP blocklist | x | x | | | [Link](https://myip.ms) |
43 | nixspam | iX spam protection | x | x | | | [Link](http://www.nixspam.org) |
44 | oisdbig | OISD-big IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
45 | oisdnsfw | OISD-nsfw IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
46 | oisdsmall | OISD-small IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
47 | pallebone | curated IP blocklist | x | x | | | [Link](https://github.com/pallebone/StrictBlockPAllebone) |
48 | proxy | open proxies | x | x | | | [Link](https://iplists.firehol.org/?ipset=proxylists) |
49 | ssbl | SSL botnet IPs | x | x | | | [Link](https://sslbl.abuse.ch) |
50 | stevenblack | stevenblack IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
51 | talos | talos IPs | x | x | | | [Link](https://talosintelligence.com/reputation_center) |
52 | threat | emerging threats | x | x | | | [Link](https://rules.emergingthreats.net) |
53 | threatview | malicious IPs | x | x | | | [Link](https://threatview.io) |
54 | tor | tor exit nodes | x | x | | | [Link](https://github.com/SecOps-Institute/Tor-IP-Addresses) |
55 | turris | turris sentinel blocklist | x | x | | | [Link](https://view.sentinel.turris.cz) |
56 | uceprotect1 | spam protection level 1 | x | x | | | [Link](https://www.uceprotect.net/en/index.php) |
57 | uceprotect2 | spam protection level 2 | x | x | | | [Link](https://www.uceprotect.net/en/index.php) |
58 | uceprotect3 | spam protection level 3 | x | x | | | [Link](https://www.uceprotect.net/en/index.php) |
59 | urlhaus | urlhaus IDS IPs | x | x | | | [Link](https://urlhaus.abuse.ch) |
60 | urlvir | malware related IPs | x | x | | | [Link](https://iplists.firehol.org/?ipset=urlvir) |
61 | webclient | malware related IPs | x | x | | | [Link](https://iplists.firehol.org/?ipset=firehol_webclient) |
62 | voip | VoIP fraud blocklist | x | x | | | [Link](https://voipbl.org) |
63 | yoyo | yoyo IPs | | | x | tcp: 80, 443 | [Link](https://github.com/dibdot/banIP-IP-blocklists) |
65 * Zero-conf like automatic installation & setup, usually no manual changes needed
66 * All Sets are handled in a separate nft table/namespace 'banIP'
67 * Full IPv4 and IPv6 support
68 * Supports nft atomic Set loading
69 * Supports blocking by ASN numbers and by iso country codes
70 * Block countries dynamically by Regional Internet Registry (RIR), e.g. all countries related to ARIN. Supported service regions are: AFRINIC, ARIN, APNIC, LACNIC and RIPE
71 * Supports local allow- and blocklist with MAC/IPv4/IPv6 addresses or domain names
72 * Supports concatenation of local MAC addresses with IPv4/IPv6 addresses, e.g. to enforce dhcp assignments
73 * All local input types support ranges in CIDR notation
74 * Auto-add the uplink subnet or uplink IP to the local allowlist
75 * Prevent common ICMP, UDP and SYN flood attacks and drop spoofed tcp flags & invalid conntrack packets (DDoS attacks) in an additional prerouting chain
76 * Provides a small background log monitor to ban unsuccessful login attempts in real-time (like fail2ban, crowdsec etc.)
77 * Auto-add unsuccessful LuCI, nginx, Asterisk or ssh login attempts to the local blocklist
78 * Auto-add entire subnets to the blocklist Sets based on an additional RDAP request with the monitored suspicious IP
79 * Fast feed processing as they are handled in parallel as background jobs (on capable multi-core hardware)
80 * Per feed it can be defined whether the wan-input chain, the wan-forward chain or the lan-forward chain should be blocked (default: all chains)
81 * Automatic blocklist backup & restore, the backups will be used in case of download errors or during startup
82 * Automatically selects one of the following download utilities with ssl support: aria2c, curl, uclient-fetch or full wget
83 * Provides HTTP ETag support to download only ressources that have been updated on the server side, to speed up banIP reloads and to save bandwith
84 * Supports an 'allowlist only' mode, this option skips all blocklists and restricts the internet access only to specific, explicitly allowed IP segments
85 * Supports external allowlist URLs to reference additional IPv4/IPv6 feeds
86 * Optionally always allow certain protocols/destination ports in wan-input and wan-forward chains
87 * Deduplicate IPs accross all Sets (single IPs only, no intervals)
88 * Provides comprehensive runtime information
89 * Provides a detailed Set report
90 * Provides a Set search engine for certain IPs
91 * Feed parsing by fast & flexible regex rulesets
92 * Minimal status & error logging to syslog, enable debug logging to receive more output
93 * Procd based init system support (start/stop/restart/reload/status/report/search/survey/lookup)
94 * Procd network interface trigger support
95 * Add new or edit existing banIP feeds on your own with the LuCI integrated custom feed editor
96 * Supports destination port & protocol limitations for external feeds (see the feed list above). To change the default assignments just use the feed editor
97 * Supports allowing / blocking of certain VLAN forwards
98 * Provides an option to transfer logging events on remote servers via cgi interface
101 * **[OpenWrt](https://openwrt.org)**, latest stable release or a snapshot with nft/firewall 4 support
102 * A download utility with SSL support: 'aria2c', 'curl', full 'wget' or 'uclient-fetch' with one of the 'libustream-*' SSL libraries, the latter one doesn't provide support for ETag HTTP header
103 * A certificate store like 'ca-bundle', as banIP checks the validity of the SSL certificates of all download sites by default
104 * For E-Mail notifications you need to install and setup the additional 'msmtp' package
107 * Devices with less than 256Mb of RAM are **_not_** supported
108 * Any previous installation of ancient banIP 0.7.x must be uninstalled, and the /etc/banip folder and the /etc/config/banip configuration file must be deleted (they are recreated when this version is installed)
110 ## Installation & Usage
111 * Update your local opkg repository (_opkg update_)
112 * Install banIP (_opkg install banip_) - the banIP service is disabled by default
113 * Install the LuCI companion package 'luci-app-banip' (opkg install luci-app-banip)
114 * It's strongly recommended to use the LuCI frontend to easily configure all aspects of banIP, the application is located in LuCI under the 'Services' menu
115 * If you're using a complex network setup, e.g. special tunnel interfaces, than untick the 'Auto Detection' option under the 'General Settings' tab and set the required options manually
116 * Start the service with '/etc/init.d/banip start' and check everything is working by running '/etc/init.d/banip status' and also check the 'Firewall Log' and 'Processing Log' tabs
117 * If you're going to configure banIP via CLI, edit the config file '/etc/config/banip' and enable the service (set ban\_enabled to '1'), then add pre-configured feeds via 'ban\_feed' (see the feed list above) and add/change other options to your needs (see the options reference below)
119 ## banIP CLI interface
120 * All important banIP functions are accessible via CLI.
123 Syntax: /etc/init.d/banip [command]
126 start Start the service
127 stop Stop the service
128 restart Restart the service
129 reload Reload configuration files (or restart if service does not implement reload)
130 enable Enable service autostart
131 disable Disable service autostart
132 enabled Check if service is started on boot
133 report [text|json|mail] Print banIP related Set statistics
134 search [<IPv4 address>|<IPv6 address>] Check if an element exists in a banIP Set
135 survey [<Set name>] List all elements of a given banIP Set
136 lookup Lookup the IPs of domain names in the local lists and update them
137 running Check if service is running
138 status Service status
139 trace Start with syscall trace
140 info Dump procd service info
143 ## banIP config options
145 | Option | Type | Default | Description |
146 | :---------------------- | :----- | :---------------------------- | :---------------------------------------------------------------------------------------------------------------- |
147 | ban_enabled | option | 0 | enable the banIP service |
148 | ban_nicelimit | option | 0 | ulimit nice level of the banIP service (range 0-19) |
149 | ban_filelimit | option | 1024 | ulimit max open/number of files (range 1024-4096) |
150 | ban_loglimit | option | 100 | scan only the last n log entries permanently. A value of '0' disables the monitor |
151 | ban_logcount | option | 1 | how many times the IP must appear in the log to be considered as suspicious |
152 | ban_logterm | list | regex | various regex for logfile parsing (default: dropbear, sshd, luci, nginx, asterisk and cgi-remote events) |
153 | ban_logreadfile | option | /var/log/messages | alternative location for parsing the log file, e.g. via syslog-ng, to deactivate the standard parsing via logread |
154 | ban_autodetect | option | 1 | auto-detect wan interfaces, devices and subnets |
155 | ban_debug | option | 0 | enable banIP related debug logging |
156 | ban_icmplimit | option | 10 | treshold in number of packets to detect icmp DDoS in prerouting chain |
157 | ban_synlimit | option | 10 | treshold in number of packets to detect syn DDoS in prerouting chain |
158 | ban_udplimit | option | 100 | treshold in number of packets to detect udp DDoS in prerouting chain |
159 | ban_logprerouting | option | 0 | log supsicious packets in the prerouting chain |
160 | ban_loginput | option | 0 | log supsicious packets in the wan-input chain |
161 | ban_logforwardwan | option | 0 | log supsicious packets in the wan-forward chain |
162 | ban_logforwardlan | option | 0 | log supsicious packets in the lan-forward chain |
163 | ban_autoallowlist | option | 1 | add wan IPs/subnets and resolved domains automatically to the local allowlist (not only to the Sets) |
164 | ban_autoblocklist | option | 1 | add suspicious attacker IPs and resolved domains automatically to the local blocklist (not only to the Sets) |
165 | ban_autoblocksubnet | option | 0 | add entire subnets to the blocklist Sets based on an additional RDAP request with the suspicious IP |
166 | ban_autoallowuplink | option | subnet | limit the uplink autoallow function to: 'subnet', 'ip' or 'disable' it at all |
167 | ban_allowlistonly | option | 0 | skip all blocklists and restrict the internet access only to specific, explicitly allowed IP segments |
168 | ban_allowflag | option | - | always allow certain protocols(tcp or udp) plus destination ports or port ranges, e.g.: 'tcp 80 443-445' |
169 | ban_allowurl | list | - | external allowlist feed URLs, one or more references to simple remote IP lists |
170 | ban_basedir | option | /tmp | base working directory while banIP processing |
171 | ban_reportdir | option | /tmp/banIP-report | directory where banIP stores the report files |
172 | ban_backupdir | option | /tmp/banIP-backup | directory where banIP stores the compressed backup files |
173 | ban_protov4 | option | - / autodetect | enable IPv4 support |
174 | ban_protov6 | option | - / autodetect | enable IPv4 support |
175 | ban_ifv4 | list | - / autodetect | logical wan IPv4 interfaces, e.g. 'wan' |
176 | ban_ifv6 | list | - / autodetect | logical wan IPv6 interfaces, e.g. 'wan6' |
177 | ban_dev | list | - / autodetect | wan device(s), e.g. 'eth2' |
178 | ban_vlanallow | list | - | always allow certain VLAN forwards, e.g. br-lan.20 |
179 | ban_vlanblock | list | - | always block certain VLAN forwards, e.g. br-lan.10 |
180 | ban_trigger | list | - | logical reload trigger interface(s), e.g. 'wan' |
181 | ban_triggerdelay | option | 20 | trigger timeout during interface reload and boot |
182 | ban_deduplicate | option | 1 | deduplicate IP addresses across all active Sets |
183 | ban_splitsize | option | 0 | split ext. Sets after every n lines/members (saves RAM) |
184 | ban_cores | option | - / autodetect | limit the cpu cores used by banIP (saves RAM) |
185 | ban_nftloglevel | option | warn | nft loglevel, values: emerg, alert, crit, err, warn, notice, info, debug |
186 | ban_nftpriority | option | -100 | nft priority for the banIP table (the prerouting table is fixed to priority -150) |
187 | ban_nftpolicy | option | memory | nft policy for banIP-related Sets, values: memory, performance |
188 | ban_nftexpiry | option | - | expiry time for auto added blocklist members, e.g. '5m', '2h' or '1d' |
189 | ban_feed | list | - | external download feeds, e.g. 'yoyo', 'doh', 'country' or 'talos' (see feed table) |
190 | ban_asn | list | - | ASNs for the 'asn' feed, e.g.'32934' |
191 | ban_region | list | - | Regional Internet Registry (RIR) country selection. Supported regions are: AFRINIC, ARIN, APNIC, LACNIC and RIPE |
192 | ban_country | list | - | country iso codes for the 'country' feed, e.g. 'ru' |
193 | ban_blockpolicy | option | - | limit the default block policy to a certain chain, e.g. 'input', 'forwardwan' or 'forwardlan' |
194 | ban_blocktype | option | drop | 'drop' packets silently on input and forwardwan chains or actively 'reject' the traffic |
195 | ban_blockinput | list | - | limit a feed to the wan-input chain, e.g. 'country' |
196 | ban_blockforwardwan | list | - | limit a feed to the wan-forward chain, e.g. 'debl' |
197 | ban_blockforwardlan | list | - | limit a feed to the lan-forward chain, e.g. 'doh' |
198 | ban_fetchcmd | option | - / autodetect | 'uclient-fetch', 'wget', 'curl' or 'aria2c' |
199 | ban_fetchparm | option | - / autodetect | set the config options for the selected download utility |
200 | ban_fetchretry | option | 5 | number of download attempts in case of an error (not supported by uclient-fetch) |
201 | ban_fetchinsecure | option | 0 | don't check SSL server certificates during download |
202 | ban_mailreceiver | option | - | receiver address for banIP related notification E-Mails |
203 | ban_mailsender | option | no-reply@banIP | sender address for banIP related notification E-Mails |
204 | ban_mailtopic | option | banIP notification | topic for banIP related notification E-Mails |
205 | ban_mailprofile | option | ban_notify | mail profile used in 'msmtp' for banIP related notification E-Mails |
206 | ban_mailnotification | option | 0 | receive E-Mail notifications with every banIP run |
207 | ban_reportelements | option | 1 | count Set elements in the report, disable this option to speed up the report significantly |
208 | ban_resolver | option | - | external resolver used for DNS lookups |
209 | ban_remotelog | option | 0 | enable the cgi interface to receive remote logging events |
210 | ban_remotetoken | option | - | unique token to communicate with the cgi interface |
213 **banIP report information**
215 ~# /etc/init.d/banip report
217 ::: banIP Set Statistics
219 Timestamp: 2024-04-17 23:02:15
220 ------------------------------
221 blocked syn-flood packets in prerouting : 5
222 blocked udp-flood packets in prerouting : 11
223 blocked icmp-flood packets in prerouting : 6
224 blocked invalid ct packets in prerouting : 277
225 blocked invalid tcp packets in prerouting: 0
227 auto-added IPs to allowlist today: 0
228 auto-added IPs to blocklist today: 0
230 Set | Elements | WAN-Input (packets) | WAN-Forward (packets) | LAN-Forward (packets) | Port/Protocol Limit
231 ---------------------+--------------+-----------------------+-----------------------+-----------------------+------------------------
232 allowlistv4MAC | 0 | - | - | ON: 0 | -
233 allowlistv6MAC | 0 | - | - | ON: 0 | -
234 allowlistv4 | 1 | ON: 0 | ON: 0 | ON: 0 | -
235 allowlistv6 | 2 | ON: 0 | ON: 0 | ON: 0 | -
236 adguardtrackersv6 | 105 | - | - | ON: 0 | tcp: 80, 443
237 adguardtrackersv4 | 816 | - | - | ON: 0 | tcp: 80, 443
238 becyberv4 | 229006 | ON: 2254 | ON: 0 | - | -
239 cinsscorev4 | 7135 | ON: 1630 | ON: 2 | - | -
240 deblv4 | 10191 | ON: 23 | ON: 0 | - | -
241 countryv6 | 38233 | ON: 7 | ON: 0 | - | -
242 countryv4 | 37169 | ON: 2323 | ON: 0 | - | -
243 deblv6 | 65 | ON: 0 | ON: 0 | - | -
244 dropv6 | 66 | ON: 0 | ON: 0 | - | -
245 dohv4 | 1219 | - | - | ON: 0 | tcp: 80, 443
246 dropv4 | 895 | ON: 75 | ON: 0 | - | -
247 dohv6 | 832 | - | - | ON: 0 | tcp: 80, 443
248 threatv4 | 20 | ON: 0 | ON: 0 | - | -
249 firehol1v4 | 753 | ON: 1 | ON: 0 | - | -
250 ipthreatv4 | 1369 | ON: 20 | ON: 0 | - | -
251 firehol2v4 | 2216 | ON: 1 | ON: 0 | - | -
252 turrisv4 | 5613 | ON: 179 | ON: 0 | - | -
253 blocklistv4MAC | 0 | - | - | ON: 0 | -
254 blocklistv6MAC | 0 | - | - | ON: 0 | -
255 blocklistv4 | 0 | ON: 0 | ON: 0 | ON: 0 | -
256 blocklistv6 | 0 | ON: 0 | ON: 0 | ON: 0 | -
257 ---------------------+--------------+-----------------------+-----------------------+-----------------------+------------------------
258 25 | 335706 | 17 (6513) | 17 (2) | 12 (0)
261 **banIP runtime information**
263 ~# /etc/init.d/banip status
264 ::: banIP runtime information
265 + status : active (nft: ✔, monitor: ✔)
267 + element_count : 335706
268 + active_feeds : allowlistv4MAC, allowlistv6MAC, allowlistv4, allowlistv6, adguardtrackersv6, adguardtrackersv4, becyberv4, cinsscorev4, deblv4, countryv6, countryv4, deblv6, dropv6, dohv4, dropv4, dohv6, threatv4, firehol1v4, ipthreatv4, firehol2v4, turrisv4, blocklistv4MAC, blocklistv6MAC, blocklistv4, blocklistv6
269 + active_devices : wan: pppoe-wan / wan-if: wan, wan_6 / vlan-allow: - / vlan-block: -
270 + active_uplink : 217.83.205.130, fe80::9cd6:12e9:c4df:75d3, 2003:ed:b5ff:43bd:9cd5:12e7:c3ef:75d8
271 + nft_info : priority: 0, policy: performance, loglevel: warn, expiry: 2h
272 + run_info : base: /mnt/data/banIP, backup: /mnt/data/banIP/backup, report: /mnt/data/banIP/report
273 + run_flags : auto: ✔, proto (4/6): ✔/✔, log (pre/inp/fwd/lan): ✔/✘/✘/✘, dedup: ✔, split: ✘, custom feed: ✘, allowed only: ✘
274 + last_run : action: reload, log: logread, fetch: curl, duration: 2m 33s, date: 2024-04-17 05:57:56
275 + system_info : cores: 4, memory: 1573, device: Bananapi BPI-R3, OpenWrt SNAPSHOT r25932-338b463e1e
278 **banIP search information**
280 ~# /etc/init.d/banip search 221.228.105.173
284 Looking for IP '221.228.105.173' on 2023-02-08 22:12:48
286 IP found in Set 'oisdbasicv4'
289 **banIP survey information**
291 ~# /etc/init.d/banip survey cinsscorev4
295 List of elements in the Set 'cinsscorev4' on 2023-03-06 14:07:58
314 **default regex for logfile parsing**
316 list ban_logterm 'Exit before auth from'
317 list ban_logterm 'luci: failed login'
318 list ban_logterm 'error: maximum authentication attempts exceeded'
319 list ban_logterm 'sshd.*Connection closed by.*\[preauth\]'
320 list ban_logterm 'SecurityEvent=\"InvalidAccountID\".*RemoteAddress='
321 list ban_logterm 'received a suspicious remote IP '\''.*'\'''
324 **allow-/blocklist handling**
325 banIP supports local allow and block lists, MAC/IPv4/IPv6 addresses (incl. ranges in CIDR notation) or domain names. These files are located in /etc/banip/banip.allowlist and /etc/banip/banip.blocklist.
326 Unsuccessful login attempts or suspicious requests will be tracked and added to the local blocklist (see the 'ban_autoblocklist' option). The blocklist behaviour can be further tweaked with the 'ban_nftexpiry' option.
327 Depending on the options 'ban_autoallowlist' and 'ban_autoallowuplink' the uplink subnet or the uplink IP will be added automatically to local allowlist.
328 Furthermore, you can reference external Allowlist URLs with additional IPv4 and IPv6 feeds (see 'ban_allowurl').
329 Both local lists also accept domain names as input to allow IP filtering based on these names. The corresponding IPs (IPv4 & IPv6) will be extracted and added to the Sets. You can also start the domain lookup separately via /etc/init.d/banip lookup at any time.
331 **allowlist-only mode**
332 banIP supports an "allowlist only" mode. This option skips all blocklists and restricts the internet access only to specific, explicitly allowed IP segments - and block access to the rest of the internet. All IPs which are _not_ listed in the allowlist (plus the external Allowlist URLs) are blocked.
335 banIP supports concatenation of local MAC addresses/ranges with IPv4/IPv6 addresses, e.g. to enforce dhcp assignments. Following notations in the local allow and block lists are allowed:
338 C8:C2:9B:F7:80:12 => this will be populated to the v4MAC- and v6MAC-Sets with the IP-wildcards 0.0.0.0/0 and ::/0
341 C8:C2:9B:F7:80:12/24 => this populate the MAC-range C8:C2:9B:00:00:00", "C8:C2:9B:FF:FF:FF to the v4MAC- and v6MAC-Sets with the IP-wildcards 0.0.0.0/0 and ::/0
343 MAC-address with IPv4 concatenation:
344 C8:C2:9B:F7:80:12 192.168.1.10 => this will be populated only to v4MAC-Set with the certain IP, no entry in the v6MAC-Set
346 MAC-address with IPv6 concatenation:
347 C8:C2:9B:F7:80:12 2a02:810c:0:80:a10e:62c3:5af:f3f => this will be populated only to v6MAC-Set with the certain IP, no entry in the v4MAC-Set
349 MAC-address with IPv4 and IPv6 concatenation:
350 C8:C2:9B:F7:80:12 192.168.1.10 => this will be populated to v4MAC-Set with the certain IP
351 C8:C2:9B:F7:80:12 2a02:810c:0:80:a10e:62c3:5af:f3f => this will be populated to v6MAC-Set with the certain IP
353 MAC-address with IPv4 and IPv6 wildcard concatenation:
354 C8:C2:9B:F7:80:12 192.168.1.10 => this will be populated to v4MAC-Set with the certain IP
355 C8:C2:9B:F7:80:12 => this will be populated to v6MAC-Set with the IP-wildcard ::/0
358 **enable the cgi interface to receive remote logging events**
359 banIP ships a basic cgi interface in '/www/cgi-bin/banip' to receive remote logging events (disabled by default). The cgi interface evaluates logging events via GET or POST request (see examples below). To enable the cgi interface set the following options:
361 * set 'ban_remotelog' to '1' to enbale the cgi interface
362 * set 'ban_remotetoken' to a secret transfer token, allowed token characters consist of '[A-Za-z]', '[0-9]', '.' and ':'
364 Examples to transfer remote logging events from an internal server to banIP via cgi interface:
366 * POST request: curl --insecure --data "<ban_remotetoken>=<suspicious IP>" https://192.168.1.1/cgi-bin/banip
367 * GET request: wget --no-check-certificate https://192.168.1.1/cgi-bin/banip?<ban_remotetoken>=<suspicious IP>
369 Please note: for security reasons use this cgi interface only internally and only encrypted via https transfer protocol.
371 **redirect Asterisk security logs to lodg/logread**
372 banIP only supports logfile scanning via logread, so to monitor attacks on Asterisk, its security log must be available via logread. To do this, edit '/etc/asterisk/logger.conf' and add the line 'syslog.local0 = security', then run 'asterisk -rx reload logger' to update the running Asterisk configuration.
374 **send status E-Mails and update the banIP lists via cron job**
375 For a regular, automatic status mailing and update of the used lists on a daily basis set up a cron job, e.g.
377 55 03 * * * /etc/init.d/banip report mail
378 00 04 * * * /etc/init.d/banip reload
381 **tweaks for low memory systems**
382 nftables supports the atomic loading of firewall rules (incl. elements), which is cool but unfortunately is also very memory intensive. To reduce the memory pressure on low memory systems (i.e. those with 256-512Mb RAM), you should optimize your configuration with the following options:
384 * point 'ban_basedir', 'ban_reportdir' and 'ban_backupdir' to an external usb drive
385 * set 'ban_cores' to '1' (only useful on a multicore system) to force sequential feed processing
386 * set 'ban_splitsize' e.g. to '1000' to split the load of an external Set after every 1000 lines/members
387 * set 'ban_reportelements' to '0' to disable the CPU intensive counting of Set elements
389 **tweak the download options**
390 By default banIP uses the following pre-configured download options:
392 * aria2c: --timeout=20 --retry-wait=10 --max-tries=5 --max-file-not-found=5 --allow-overwrite=true --auto-file-renaming=false --log-level=warn --dir=/ -o
393 * curl: --connect-timeout 20 --retry-delay 10 --retry 5 --retry-all-errors --fail --silent --show-error --location -o
394 * wget: --no-cache --no-cookies --timeout=20 --waitretry=10 --tries=5 --retry-connrefused --max-redirect=0 -O
395 * uclient-fetch: --timeout=20 -O
397 To override the default set 'ban_fetchretry', 'ban_fetchinsecure' or globally 'ban_fetchparm' to your needs.
399 **send E-Mail notifications via 'msmtp'**
400 To use the email notification you must install & configure the package 'msmtp'.
401 Modify the file '/etc/msmtprc', e.g.:
414 from <address>@gmail.com
418 Finally add a valid E-Mail receiver address.
420 **change existing banIP feeds or add port limitations**
421 The banIP default blocklist feeds are stored in an external JSON file '/etc/banip/banip.feeds'. All custom changes should be stored in an external JSON file '/etc/banip/banip.custom.feeds' (empty by default). It's recommended to use the LuCI based Custom Feed Editor to make changes to this file.
422 A valid JSON source object contains the following information, e.g.:
426 "url_4": "https://raw.githubusercontent.com/SecOps-Institute/Tor-IP-Addresses/master/tor-exit-nodes.lst",
427 "url_6": "https://raw.githubusercontent.com/SecOps-Institute/Tor-IP-Addresses/master/tor-exit-nodes.lst",
428 "rule_4": "/^(([0-9]{1,3}\\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])(\\/(1?[0-9]|2?[0-9]|3?[0-2]))?)$/{printf \"%s,\\n\",$1}",
429 "rule_6": "/^(([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\\/(1?[0-2][0-8]|[0-9][0-9]))?)$/{printf \"%s,\\n\",$1}",
430 "descr": "tor exit nodes",
431 "flag": "tcp 80-89 443"
435 Add an unique feed name (no spaces, no special chars) and make the required changes: adapt at least the URL, the regex and the description for a new feed.
436 Please note: the flag field is optional, it's a space separated list of options: supported are 'gz' as an archive format, protocols 'tcp' or 'udp' with port numbers/port ranges for destination port limitations.
439 Please join the banIP discussion in this [forum thread](https://forum.openwrt.org/t/banip-support-thread/16985) or contact me by mail <dev@brenken.org>
442 * stop all banIP related services with _/etc/init.d/banip stop_
443 * remove the banip package (_opkg remove banip_)
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