{"id":8007,"date":"2022-01-31T09:33:13","date_gmt":"2022-01-31T09:33:13","guid":{"rendered":"https:\/\/mailinvest.blog\/index.php\/2022\/01\/31\/a-tale-of-command-line-booby-traps-and-bored-engineers-the-register\/"},"modified":"2022-01-31T09:33:13","modified_gmt":"2022-01-31T09:33:13","slug":"a-tale-of-command-line-booby-traps-and-bored-engineers-the-register","status":"publish","type":"post","link":"https:\/\/mailinvest.blog\/index.php\/2022\/01\/31\/a-tale-of-command-line-booby-traps-and-bored-engineers-the-register\/","title":{"rendered":"A tale of command line booby traps and bored engineers \u2022 The Register"},"content":{"rendered":"<p> <a href=\"https:\/\/go.fiverr.com\/visit\/?bta=1052423&nci=17043\" Target=\"_Top\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" src=\"https:\/\/mailinvest.blog\/wp-content\/themes\/breek\/assets\/images\/transparent.gif\" data-lazy=\"true\" data-src=\"https:\/\/fiverr.ck-cdn.com\/tn\/serve\/?cid=40081059\"  width=\"601\" height=\"201\"><\/a>\n<\/p>\n<div id=\"body\">\n<p><span data-label=\"who, me?\">Who, Me?<\/span> Take a trip back to when mainframes and terminals were all the rage and <a target=\"_blank\" href=\"https:\/\/www.youtube.com\/watch?v=0FacYAI6DY0\" rel=\"noopener\">The Cloud<\/a> was the smoke produced by the mainframe when a washing-machine-sized disk was about to let go. Welcome to another <a target=\"_blank\" href=\"https:\/\/www.theregister.com\/Tag\/Who,Me?\/\" rel=\"noopener\">Who, Me?<\/a> confession.<\/p>\n<p>Today&#8217;s plea for forgiveness comes from a reader Regomised as &#8220;Doug&#8221; and is a warning to careless administrators.<\/p>\n<p>&#8220;Back in the days when terminals were still fairly common,&#8221; said Doug, &#8220;the company I worked for provided &#8216;local&#8217; data based on the result of a search run on the client&#8217;s main dataset held on their server.&#8221;<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"condor\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,mpu,\">\n        <noscript><br \/>\n            <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" target=\"_blank\" rel=\"noopener\"><br \/>\n                <img decoding=\"async\" src=\"https:\/\/mailinvest.blog\/wp-content\/themes\/breek\/assets\/images\/transparent.gif\" data-lazy=\"true\" data-src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" alt=\"\"\/><\/a><br \/>\n        <\/noscript>\n    <\/div>\n<p>&#8220;We could telnet from these terminals to our box \u2013 and frequently had to in the early days,&#8221; he recalled. The client itself was nationally known in back then and had spanked millions getting this remote site up and running.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xmd=\",fluid,mpu,leaderboard,\" data-lg=\",fluid,mpu,leaderboard,\" data-xlg=\",fluid,billboard,superleaderboard,mpu,leaderboard,\" data-xxlg=\",fluid,billboard,superleaderboard,brandwidth,brandimpact,leaderboard,mpu,\">\n            <noscript><br \/>\n                <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"><br \/>\n                    <img decoding=\"async\" src=\"https:\/\/mailinvest.blog\/wp-content\/themes\/breek\/assets\/images\/transparent.gif\" data-lazy=\"true\" data-src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt=\"\"\/><\/a><br \/>\n            <\/noscript>\n        <\/div>\n<div class=\"adun_eagle_desktop_story_wrapper\">\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"mid\" data-raptor=\"eagle\" data-xxlg=\",mpu,dmpu,\">\n                <noscript><br \/>\n                    <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"><br \/>\n                        <img decoding=\"async\" src=\"https:\/\/mailinvest.blog\/wp-content\/themes\/breek\/assets\/images\/transparent.gif\" data-lazy=\"true\" data-src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt=\"\"\/><\/a><br \/>\n                <\/noscript>\n            <\/div>\n<\/p><\/div>\n<p>Things were going swimmingly. Right up until a month after go-live when Doug and a pal were stuck at the client site on a Friday evening. The client&#8217;s own engineer had long gone, and Doug was finishing up the last checks to allow a weekly backup to kick off.<\/p>\n<p>He ambled up to a darkened terminal near the server room and tapped the return key to bring it to life. The prompt was odd, something he&#8217;d not seen before. Tappity tap: <code>whoami<\/code><\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,mpu,\">\n            <noscript><br \/>\n                <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"><br \/>\n                    <img decoding=\"async\" src=\"https:\/\/mailinvest.blog\/wp-content\/themes\/breek\/assets\/images\/transparent.gif\" data-lazy=\"true\" data-src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt=\"\"\/><\/a><br \/>\n            <\/noscript>\n        <\/div>\n<p>.<\/p>\n<p>It transpired he was logged in as root. On <i>THE<\/i> server. &#8220;Y&#8217;know,&#8221; he said, &#8220;the one that held all the billing information, delivery records and the kind of useful stuff that kept a company running.&#8221;<\/p>\n<p>At this point he <i>could<\/i> have logged off. Instead he called over his chum.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" id=\"story_eagle_xsm_sm_md_xmd_lg_xlg\" data-pos=\"mid\" data-raptor=\"eagle\" data-xsm=\",mpu,dmpu,\" data-sm=\",mpu,dmpu,\" data-md=\",mpu,dmpu,\" data-xmd=\",mpu,dmpu,\" data-lg=\",mpu,dmpu,\" data-xlg=\",mpu,dmpu,\">\n            <noscript><br \/>\n                <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"><br \/>\n                    <img decoding=\"async\" src=\"https:\/\/mailinvest.blog\/wp-content\/themes\/breek\/assets\/images\/transparent.gif\" data-lazy=\"true\" data-src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_onprem\/servers&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33Yfes2efP9drrZGC5gvxPdQAAAE4&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt=\"\"\/><\/a><br \/>\n            <\/noscript>\n        <\/div>\n<p>&#8220;We spent a happy few minutes playing about with the login prompt before having the wonderful idea that typing something along the lines of &#8216;<code>\/etc\/shutdown -t0 -h now<\/code>&#8216; and leaving the terminal to go to sleep would be a jolly jape.&#8221;<\/p>\n<p>&#8220;Like me, most people used the &#8216;return&#8217; key to wake up a terminal.&#8221;<\/p>\n<p>Doug and pal went off to do whatever techies did on weekends in those days. It wasn&#8217;t until Monday morning when all hell broke loose and he (now on another site) was summoned to HQ for a talking-to. It transpired that the client&#8217;s main (and only) database server had unexpectedly shut down.<\/p>\n<p>Any protestations of innocence were shortlived as logs were produced showing commands attributed to the terminal on the site where Doug and friend had been.<\/p>\n<p>&#8220;Awkward,&#8221; understated Doug.<\/p>\n<p>However, Doug was saved by his manager who asked a simple question: how could &#8216;his&#8217; engineers have possibly known the login for the client&#8217;s mainframe? &#8220;&#8230;and was shamefacedly told that they hadn&#8217;t set a password on the root account&#8230;&#8221;<\/p>\n<p>So, in a way, Doug was actually the hero of the hour, right? Hm.<\/p>\n<p>These days, neither employer nor client are still trading &#8220;although not because of this, I hasten to add,&#8221; said Doug.<\/p>\n<p>&#8220;The moral of this sorry tale is simple: Junior techs with a little Unix knowledge are dangerous if they get bored so be careful if your hardware attaches to client servers.<\/p>\n<p>&#8220;Oh, and secure your root access \u2013 and never, ever, leave superuser accounts logged in.&#8221;<\/p>\n<p>Ever left something logged in that you shouldn&#8217;t? Leaving something explosive on the command line certainly ups the ante of the witty desktop background switcheroo of today. Let us know your misdemeanours with an email to <a target=\"_blank\" href=\"https:\/\/go.theregister.com\/feed\/www.theregister.com\/2022\/01\/31\/who_me\/mailto:whome@theregister.com\" rel=\"noopener\">Who, Me?<\/a> \u00ae<\/p>\n<\/p><\/div>\n<iframe data-lazy=\"true\" data-src=\"https:\/\/www.fiverr.com\/gig_widgets?id=U2FsdGVkX18x7XQvttUTrv1oEqmGNGTgvvCUiUoJ\/AP4z\/UyMz8lXGOLpu15jIMxBbTR0gmD5uBoFvhC4KWeALQRp3h\/X\/AwcVD0K8Wj9H\/ZzYKzcCNHosB9oS4SCJJFWiN85P9ICAc4OgCoE\/wHKIY7CDkf2\/DQ1vqGvk4smVe5cRDEmrLPCWi4FC8p40VUhSmWQ5udCm0zoJtorgWv3vbDQw0kKYkwn39ozAnQXDe+YvWMxkLFWA+O3TFwkJvdkIK+\/AUSnRssPKt5WHY0FhNOxnSPcLslEL4G4\/RfP95ve99U+kRnDy3X+KtzdQLY+u935ghON\/o3UE4IMv9oN6JX9RnxzL\/LRcOgnHigxStSGPKsZYtnz8RWNVT\/rOLAibqiWJadC5MYHRbekF3eg6FOGrQGkXYbsn0+a5aovnlLCbLwIqY9fcS17UX8J235iQ6cdmHNbrPeS84CMm34RA==&affiliate_id=1052423&strip_google_tagmanager=true\" loading=\"lazy\" data-with-title=\"true\" class=\"fiverr_nga_frame\" frameborder=\"0\" height=\"350\" width=\"100%\" referrerpolicy=\"no-referrer-when-downgrade\" data-mode=\"random_gigs\" onload=\" var frame = this; var script = document.createElement('script'); script.addEventListener('load', function() { window.FW_SDK.register(frame); }); script.setAttribute('src', 'https:\/\/www.fiverr.com\/gig_widgets\/sdk'); document.body.appendChild(script); \" ><\/iframe>\n<br \/><a href=\"https:\/\/go.theregister.com\/feed\/www.theregister.com\/2022\/01\/31\/who_me\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Who, Me? Take a trip back to when mainframes and terminals were all the rage and The Cloud was the smoke produced by the mainframe&#8230;<\/p>\n","protected":false},"author":1,"featured_media":8008,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-8007","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech-universe"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A tale of command line booby traps and bored engineers \u2022 The Register - mailinvest.blog<\/title>\n<meta name=\"description\" content=\"Technology is forever changing, and there are always new pieces of technology to replace obsolete ones. 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