Security is an important aspect to be considered in computer networks. This security system can be a detection and prevention of attacks that are being done by the attacker (intruders). The problem of attacks that occur in computer networks is that intruders can do port scanning, enter the system using open ports such as telnet, ftp and others.. The purpose of this study is the implementation of IDPS, can be from. To do network security from various attack threats, a system that can detect and prevent it directly is needed. The method that can be used is Intrusion Detection and Prevention System (NIDPS). NIDPS can exchange and block the attacks. This security system is collaborated with IP Tables. IP Tables is used to filter incoming data packets and drop packets of data that are indicated by attack. With the Intrusion Detection and Prevention system, it can detect attacks and prevent them by blocking data packets sent by intruders through port scanning, FTP attacks, and telnets.
Abstract. This study aims to measure the antioxidant activity of Matoa Leaf (Pometia pinnata) extract using the DPPH method. Extraction was carried out using the maceration method using n-hexane. The filtering results showed that the Matoa Leaf extract (Pometia pinnata) contains flavonoid compounds which use concentrated HCl and magnesium powder to produce a color red and phenol compounds use FeCl3 reagent to produce a color green. Comparison of vitamin C with various concentrations of 20 ppm, 30 ppm, 40 ppm, 50 ppm and 60 ppm which has a very strong antioxidant activity with an IC50 value of 30,874 and the antioxidant activity test of the ethanol extract of Matoa Leaf (Pometia pinnata) using the DPPH method (1,1-Diphenyl-2-Picryl Hidrazyl with Concentration variations of 10 ppm, 20 ppm, 30 ppm, 40 ppm and 50 ppm which have very strong antioxidant activity category with IC50 value of 43,895. Abstrak. Penelitian ini bertujuan untuk mengukur aktivitas antioksidan pada ekstrak Daun Matoa (Pometia pinnata) dengan menggunakan metode DPPH. Ekstraksi dilakukan menggunakan metode maserasi dengan menggunakan pelarut n-heksan. Hasil skrining fitokimia menunjukkan bahwa ekstrak Daun Matoa (Pometia pinnata) mengandung senyawa flavanoid yang dimana menggunakan preaksi HCL pekat dan serbuk magnesium sehingga menghasilkan warna merah dan untuk senyawa fenol menggunakan pereaksi FeCl3 sehingga menghasilkan warna hijau. Pembanding vitamin C dengan variasi kosentrasi 20ppm,30ppm,40ppm,50ppm dan 60ppm yang memiliki aktivitas antioksidan sangat kuat dengan nilai IC50 sebesar 30,874 dan uji aktivitas antioksidan ekstrak etanol Daun Matoa (Pometia pinnata) menggunakan metode DPPH (1,1-Diphenyl-2-Picry lHidrazyl dengan variasi kosentrasi 10 ppm, 20 ppm, 30 ppm, 40 ppm dan 50 ppm yang memiliki aktivitas antioksidan kategori sangat kuat dengan nilai IC50 43,895
Analisis genetik isolat-isolat cendawan Fusarium oxysporum f. sp. cubense (Foc) VCG 01213/16 penyebab penyakit layu pada tanaman pisang menunjukkan adanya keragaman yang nyata. Penelitian bertujuan mempelajari keragaman virulensi isolat-isolat yang terkelompok dalam VCG 01213/16, berasal dari berbagai daerah dan varietas pisang yang berbeda. Penelitian dilakukan di Laboratorium Penyakit dan Rumah Kasa Balai Penelitian Tanaman Buah Tropika (Balitbu Tropika) Solok, dari bulan Maret sampai dengan Juni 2009. Rancangan yang digunakan ialah acak kelompok dengan 10 perlakuan dan tiga ulangan, masing-masing perlakuan terdiri atas 10 tanaman. Perlakuan terdiri atas 10 isolat Foc VCG 01213/16 yang berasal dari varietas pisang dan lokasi berbeda. Tanaman uji ialah benih pisang Barangan hasil perbanyakan kultur jaringan. Hasil penelitian menunjukkan bahwa terdapat keragaman virulensi 10 isolat Foc VCG 01213/16 yang dinilai dari perbedaan masa inkubasi, persentase serangan, dan indeks keparahan penyakit pada bonggol dan daun pisang Barangan. Sembilan isolat Foc yang diuji mempunyai virulensi yang tinggi. Masa inkubasi berkisar antara 13,98 dan 16,80 hari, persentase serangan 93,33-100%, dan indeks keparahan penyakit pada bonggol dan daun masing-masing berkisar 3,46-5,35 dan 4,68-5,41. Isolat Foc VCG 01213/16 yang berasal dari Jabung-Lampung Timur dan diisolasi dari pisang varietas Ambon Kuning (isolat F) menunjukkan virulensi yang relatif lebih rendah dibanding sembilan isolat Foc lainnya dengan masa inkubasi 30,27 hari, indeks keparahan penyakit pada bonggol dan daun masing-masing sebesar 2,14 dan 3,76. Hasil penelitian ini bermanfaat dalam memberikan informasi tentang biologi F. oxysporum f. sp. cubense sebagai dasar untuk penyusunan teknik pengendalian yang tepat.<br /><br /><br />Genetic analysis of isolates of the Fusarium oxysporum f. sp. cubense (Foc) that are grouped in VCG 01213/16, as the causal agent of wilt disease in banana plants showed a considerable variation. This research aimed to study the variation in virulence of isolates that are grouped in VCG 01213/16 from different varieties of banana and regions. The study was conducted in the Protection Laboratory and the Screenhouse of Indonesian Tropical Fruit Research Institute (ITFRI) Solok, from March to June 2009. A randomized block design was used in this research with 10 treatments and three replications. Each treatments consisted of 10 banana plants. The treatment was 10 Foc isolates belonging to VCG 01213/16 originating from different varieties of banana and locations. Barangan plantlets produced from tissue culture propagation were used as the planting material. The results showed that there were high variations in virulence among 10 Foc isolates in VCG 01213/16 based on variables of the incubation period, percentage of wilt, and disease severity index on corm and leaves of Barangan variety. Nine of the 10 Foc isolates tested were highly virulent isolates. The incubation period ranged from 13.98 to 16.80 days, the percentage of wilt from 93.33 to 100%, and the disease severity index of corm and leaves ranged from 3.46 to 5.35 and from 4.68 to 5.41, respectively. The Foc VCG 01213/16 isolates originated from Jabung, East Lampung and from Ambon Kuning variety (isolate F) shown relatively low virulence than others isolates that the incubation period was 30.27 days and the disease severity index on the corm and leaves was 2.14 and 3.76, respectively. This result provides useful information on biology of F. oxysprum f. sp. cubense to find out the best control method of the pathogen.<br /><br />
Dakwah secara virtual menjadi pilihan terbaik saat ini. Terutama, untuk mencegah perluasan virus covid-19. Dimana yang di maksud dakwah virtual itu adalah dakwah yang tidak membutuhkan sejumlah hal tidak seperti ketika melakukan dakwah tabliq akbar yang membutuhkan konsumsi ataupun biaya di dakwah virtual ini yang disiapkan hanya kuota internet dan kemauan platform teratas untuk media dakwah terbaik di masa pandemi covid-19 ini adlaah melalui youtube, dan medsos seperti facebook, instagram, dan twitter. Maka dengan menggunakan teknologi informasi dan komunikasi menjadi pilihan yang mesti diambil oleh pendakwah. Pandemi seharusnya tidak menurunkan semangat dakwah, namun sebaliknya masa sulit ini bisa menjadi peluang tonggak awal kebangkitan dakwah Islam memasuki era indutri 4.0. Sikap adaptif para da’i dalam mengikuti perkembangan zaman tentunya hal yang diharapkan ditengah kecemasan ummat
This article describe about administration of students.Administration of students is the activity of recapitulating students from the admission process until students graduate from school or the cause of discharge from school.
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