Articles I've written for customers on IT issues.
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  163. Overfull \hbox (2.43376pt too wide) in paragraph at lines 26--30
  164. \OT1/cmr/m/n/10.95 ond, nav-i-gate to /etc/fail2ban/jail.d/ Add the fol-low-ing
  165. to a sshd.conf
  166. []
  167. Overfull \hbox (100.1879pt too wide) in paragraph at lines 44--44
  168. []\OT1/cmtt/m/n/10.95 # this is used in devuan. no other changes are made to ot
  169. her files, except[]
  170. []
  171. Overfull \hbox (65.69577pt too wide) in paragraph at lines 44--44
  172. []\OT1/cmtt/m/n/10.95 # that the default ssh filter is disabled in jail.conf if
  173. it enabled[]
  174. []
  175. [1
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  178. Overfull \hbox (1.85292pt too wide) in paragraph at lines 49--50
  179. []\OT1/cmr/m/n/10.95 First, ac-tion can be ipt-a-bles for a sin-gle port, or ip
  180. tables-multiport
  181. []
  182. Overfull \hbox (3.43622pt too wide) in paragraph at lines 61--62
  183. \OT1/cmr/m/n/10.95 For those un-fa-mil-iar with the dif-fer-ence be-tween RE-JE
  184. CT and DROP,
  185. []
  186. Overfull \hbox (48.8393pt too wide) in paragraph at lines 63--64
  187. []\OT1/cmr/bx/n/10.95 To con-fig-ure it, see /etc/fail2ban/actions.d/iptables-c
  188. ommon.conf
  189. []
  190. [2]
  191. Overfull \hbox (7.3905pt too wide) in paragraph at lines 76--76
  192. [][]\OT1/cmr/m/n/9 Reference: https://wiki.gentoo.org/wiki/Security[]Handbook/L
  193. ogging#Syslog-
  194. []
  195. Overfull \hbox (2.4602pt too wide) in paragraph at lines 171--171
  196. []\OT1/cmtt/m/n/10.95 @version: 3.17 #mandatory since Version 3, specify
  197. []
  198. []
  199. Overfull \hbox (42.70102pt too wide) in paragraph at lines 171--171
  200. [] \OT1/cmtt/m/n/10.95 # The default action of syslog-ng is to log a STA
  201. TS line[]
  202. []
  203. Overfull \hbox (100.1879pt too wide) in paragraph at lines 171--171
  204. [] \OT1/cmtt/m/n/10.95 # to the file every 10 minutes. That's pretty ug
  205. ly after a while.[]
  206. []
  207. Overfull \hbox (82.94183pt too wide) in paragraph at lines 171--171
  208. [] \OT1/cmtt/m/n/10.95 # Change it to every 12 hours so you get a nice d
  209. aily update of[]
  210. []
  211. [3]
  212. Overfull \hbox (8.2089pt too wide) in paragraph at lines 171--171
  213. []\OT1/cmtt/m/n/10.95 destination newscrit { file("/var/log/news/news.crit"); }
  214. ;[]
  215. []
  216. Overfull \hbox (31.20364pt too wide) in paragraph at lines 171--171
  217. []\OT1/cmtt/m/n/10.95 destination newsnotice { file("/var/log/news/news.notice"
  218. ); };[]
  219. []
  220. Overfull \hbox (48.4497pt too wide) in paragraph at lines 171--171
  221. []\OT1/cmtt/m/n/10.95 # ...if you intend to use /dev/console for programs like
  222. xconsole[]
  223. []
  224. [4]
  225. Overfull \hbox (105.93658pt too wide) in paragraph at lines 171--171
  226. []\OT1/cmtt/m/n/10.95 # you can comment out the destination line above that ref
  227. erences /dev/tty12[]
  228. []
  229. Overfull \hbox (25.45496pt too wide) in paragraph at lines 171--171
  230. []\OT1/cmtt/m/n/10.95 filter f_debug { not facility(auth, authpriv, news, mail)
  231. ; };[]
  232. []
  233. Overfull \hbox (36.95233pt too wide) in paragraph at lines 171--171
  234. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_authpriv); destination(authlo
  235. g); };[]
  236. []
  237. Overfull \hbox (19.70627pt too wide) in paragraph at lines 171--171
  238. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_syslog); destination(syslog);
  239. };[]
  240. []
  241. Overfull \hbox (19.70627pt too wide) in paragraph at lines 171--171
  242. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_daemon); destination(daemon);
  243. };[]
  244. []
  245. Overfull \hbox (19.70627pt too wide) in paragraph at lines 171--171
  246. []\OT1/cmtt/m/n/10.95 log { source(kernsrc); filter(f_kern); destination(kern);
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  248. []
  249. Overfull \hbox (111.68527pt too wide) in paragraph at lines 171--171
  250. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_mail); filter(f_info); destin
  251. ation(mailinfo); };[]
  252. []
  253. [5]
  254. Overfull \hbox (111.68527pt too wide) in paragraph at lines 171--171
  255. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_mail); filter(f_warn); destin
  256. ation(mailwarn); };[]
  257. []
  258. Overfull \hbox (100.1879pt too wide) in paragraph at lines 171--171
  259. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_mail); filter(f_err); destina
  260. tion(mailerr); };[]
  261. []
  262. Overfull \hbox (8.2089pt too wide) in paragraph at lines 171--171
  263. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_debug); destination(debug); }
  264. ;[]
  265. []
  266. Overfull \hbox (42.70102pt too wide) in paragraph at lines 171--171
  267. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_messages); destination(messag
  268. es); };[]
  269. []
  270. Overfull \hbox (42.70102pt too wide) in paragraph at lines 171--171
  271. []\OT1/cmtt/m/n/10.95 log { source(src); filter(f_emergency); destination(conso
  272. le); };[]
  273. []
  274. Overfull \hbox (1.21407pt too wide) in paragraph at lines 183--184
  275. []\OT1/cmr/m/n/10.95 https://www.jwz.org/blog/2019/03/apache-2-4-1-killed-fail2
  276. ban-
  277. []
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